Kikuchi Tatsuya(Faculty of Engineering　Materials Science and Engineering　Ecological Materials)｜ Hokkaido University Researchers (Hokkaido University Researchers Directory)

Name

AuthorName

Position

Affiliation

Research Field

Kikuchi Tatsuya

Faculty of Engineering　Materials Science and Engineering　Ecological Materials	Professor
Institute for the Promotion of Business-Regional Collaboration	Professor
Institute for the Advancement of Higher Education	Professor

Last Updated :2025/12/04

■Researcher basic information

Degree

Ph. D., Hokkaido University

Research Keyword

Magnesium

Aluminum

Water droplet-based electricity generators

Superhydrophilicity, superhydrophobicity, and superoleophobicity

Surface chemistry

Electrochemistry

Corrosion Protection Engineering

Nanoporous alumina

Anodizing

Research Field

Nanotechnology/Materials, Composite materials and interfaces

Nanotechnology/Materials, Material fabrication and microstructure control

Educational Organization

Bachelor's degree program, School of Engineering

Master's degree program, Graduate School of Engineering

Doctoral (PhD) degree program, Graduate School of Engineering

■Career

Career

Nov. 2023 - Present
Faculty of Engineering, Hokkaido University, Professor

May 2010 - Oct. 2023
Faculty of Engineering, Hokkaido University, 准教授

Apr. 2007 - Apr. 2010
Graduate School of Engineering, Hokkaido University, 助教

Jan. 2004 - Mar. 2007
Graduate School of Engineering, Hokkaido University, 助手

Apr. 2003 - Dec. 2003
株式会社フルヤ金属, 研究員

Apr. 2000 - Mar. 2003
日本学術振興会, 特別研究員（DC1）

Educational Background

Apr. 2000 - Mar. 2003, Hokkaido University, Graduate School of Engineering, Division of Molecular Chemistry, Japan

Apr. 1998 - Mar. 2000, Hokkaido University, Graduate School of Engineering, Division of Molecular Chemistry, Japan

Apr. 1995 - Mar. 1998, Hokkaido University, School of Engineering, 金属工学科, Japan

Apr. 1990 - Mar. 1995, 国立函館工業高等専門学校, 工業化学科

Committee Memberships

Jan. 2025 - Present
電気化学会北海道支部, 副支部長, Society

Jan. 2023 - Present
日本金属学会北海道支部, 代議員, Society

Apr. 2020 - Present
PASSIVITY-11 (The 11th International Symposium on the Passivity of Metals and Semiconductors) 実行委員, Others

Apr. 2020 - Present
日本金属学会, 会誌・欧文誌編集委員会編集委員, Society

2010 - Present
表面技術協会ARS（金属のアノード酸化皮膜の機能化部会）, 幹事, Society

Feb. 2004 - Present
電気化学会北海道支部, 幹事, Society

Apr. 2003 - Present
表面技術協会北海道支部, 幹事, Society

Jan. 2025 - Jun. 2025
電気化学会北海道支部・東海支部, 第39回ライラックセミナー、第29回若手研究者交流会、2025年度ヤングエレクトロケミスト研究会・光電気化学研究会代表世話人, Society

Jul. 2019 - Jun. 2025
軽金属学会, 編集委員会委員, Society

Feb. 2023 - Feb. 2025
表面技術協会, 理事, Society

Jan. 2023 - Dec. 2024
表面技術協会北海道支部, 会計幹事, Society

Jun. 2024 - Sep. 2024
北見工業大学, アドミッションセンター入試ミス調査委員会委員（外部有識者）, Others

2024 - 2024
日本金属学会・日本鉄鋼協会2025年秋期講演大会, 実行委員, Society

2024 - 2024
表面技術協会, 第150回講演大会実行委員, Society

Mar. 2018 - Feb. 2023
表面技術協会, 会誌編集委員会委員, Society

Jan. 2021 - Jan. 2023
日本金属学会北海道支部, 代議員, Society

Apr. 2022 - Nov. 2022
電気化学会, 2022年電気化学秋季大会シンポジウム「材料電気化学が拓く金属・半導体の技術革新」オーガナイザー, Society

2021 - 2021
電気化学会, 2021年電気化学秋季大会実行委員, Society

Apr. 2015 - Mar. 2020
軽金属学会, 新エネルギー向け表面処理研究部会部会員, Society

Mar. 2016 - Feb. 2020
表面技術協会, 評議員, Society

2020 - 2020
PRiME 2020 (Pacific Rim Meeting on Electrochemical & Solid-State Science, 238th Meeting of the Electrochemical Society), シンポジウムオーガナイザー（Light Alloys 6: in Honor of Hideaki Takahashi）, Society

Apr. 2015 - Mar. 2019
日本金属学会, 第２分科会委員, Society

Apr. 2003 - Dec. 2018
腐食防食学会北海道支部, 幹事, Society

2018 - 2018
表面技術協会, 第138回講演大会実行委員, Society

2017 - 2017
日本金属学会・日本鉄鋼協会, 平成29年度秋期大会実行委員, Society

2016 - 2016
5th International Round Table on Titanium Production in Molten Salts (Ti-RT2016) 実行委員, Others

Jun. 2013 - May 2015
電気化学会, 大会学術企画委員会委員, Society

Apr. 2013 - Mar. 2015
日本金属学会, 会報編集委員会委員, Society

Dec. 2012 - Nov. 2014
日本学術振興会, 科学研究費助成事業第1段書面審査委員, Others

Mar. 2010 - Feb. 2014
表面技術協会, 評議員, Society

2013 - 2014
表面技術協会, 2nd International Symposium on Anodizing Science and Technology 2014（AST2014）実行委員, Society

2012 - 2012
表面技術協会, 第126回講演大会実行委員, Society

2012 - 2012
腐食防食学会, 第59回材料と環境討論会会計・実行委員, Society

2011 - 2012
日本分析学会その他, 化学系学協会北海道支部2012年冬季研究発表会会計, Society

2011 - 2011
日本熱電学会, 第8回学術講演会実行委員, Society

2011 - 2011
日本工学教育協会, 第59回年次大会実行委員, Society

2010 - 2011
日本分析学会その他, 化学系学協会北海道支部2011年冬季研究発表会実行委員, Society

2010 - 2010
日本金属学会・日本鉄鋼協会, 平成22年度秋期大会実行委員, Society

Mar. 2006 - Feb. 2008
日本金属学会北海道支部, 幹事, Society

2008 - 2008
International Symposium on Materials Design for Infrastructures 実行委員, Others

2007 - 2007
電気化学会北海道支部, 第24回ライラックセミナー・第13回若手研究者交流会実行委員, Society

2006 - 2006
表面科学と界面制御に関する若手研究者のシンポジウム実行委員, Others

2005 - 2006
表面技術協会, 第114回講演大会会計幹事, Society

2005 - 2005
International Symposium on Progress in Corrosion Research in Commemoration of Centenary of Birth of Professor Go Okamoto 総務, Others

2005 - 2005
腐食防食協会, 第52回材料と環境討論会総務, Society

表面技術協会, International Symposium on Anodizing Science and Technology 2008（AST2008）実行委員, Society

■Research activity information

Awards

2020, 日本鉄鋼協会, 2020年度俵論文賞

2018, 日本金属学会, 第66回論文賞

2018, 北海道大学, 平成29年度教育研究総長表彰

2016, 北海道大学, 平成27年度研究総長賞奨励賞

2015, 日本金属学会, 第63回論文賞

2004, 表面技術協会, 平成16年度進歩賞　　　　　　　　　　　　　　　
Japan

1998, 日本金属学会・日本鉄鋼協会, 第6回奨学賞　　　　　　　　　　　　　　　
Japan

Papers

Fundamental Study on Anodizing of Aluminum and Aluminum Alloys in a Sodium Tetraborate Electrolyte Solution and Evaluating Their High-Temperature Wettability Behavior　　　　　　　　　　　　　　　
Mana Iwai, Takahiro Noguchi, Tomoya Nagao, Tatsuya Kikuchi, Sho Kitano, Koji Fushimi, Hiroki Habazaki
Journal of Alloys and Compounds, 1041, 183822, 2025, [Peer-reviewed]
Japanese, Scientific journal

加熱クラックの生成挙動に及ぼすアルマイトのマイクロナノ構造の影響　　　　　　　　　　　　　　　
中島大希, 佐藤美羽, 布村順司, 大谷良行, 京良彦, 菊地竜也
日本金属学会誌, 89, 242, 251, 2025, [Peer-reviewed], [Last author]
Japanese, Scientific journal

Safe Electropolishing Process for Aluminum and Its Alloys Using Sodium Chloride Glycol Solutions Without Perchloric Acid　　　　　　　　　　　　　　　
Mana Iwai, Tatsuya Kikuchi, Daiki Nakajima, Sho Kitano, Koji Fushimi, Hiroki Habazaki
Journal of The Electrochemical Society, 172, 023508, 2025, [Peer-reviewed]
English, Scientific journal

Electropolishing of Magnesium and Its Alloys using a Safe Glycol Solution containing Sodium Chloride　　　　　　　　　　　　　　　
Shunsuke Tomita, Tatsuya Kikuchi
Journal of The Electrochemical Society, 171, 093502, 2024, [Peer-reviewed], [Last author, Corresponding author]
English, Scientific journal

高規則ナノディンプル構造に基づくアルミニウム表面の虹色発色　　　　　　　　　　　　　　　
菊地竜也, 岩井愛
塗装工学, 58, 263, 269, 2023, [Invited], [Lead author, Corresponding author]
Japanese, Scientific journal

A Novel Polishing Process for Ultra-Smooth Aluminum Surfaces via Anodizing in Sodium Metaborate　　　　　　　　　　　　　　　
Mana Iwai, Tatsuya Kikuchi
Journal of The Electrochemical Society, 170, 073506, 2023, [Peer-reviewed], [Last author, Corresponding author]
English, Scientific journal

Electrochemical Separation of Porous Anodic Aluminum Oxide with Thick Barrier Layers　　　　　　　　　　　　　　　
Tatsuya Kikuchi, Kazuya Miyamoto, Mana Iwai
Journal of The Electrochemical Society, 170, 073504, 2023, [Peer-reviewed], [Lead author, Corresponding author]
English, Scientific journal

アルマイトの安全な超高速電解剥離法　　　　　　　　　　　　　　　
菊地竜也, 宮本和哉, 岩井愛
アルトピア, 53, 4, 14, 21, 2023, [Invited], [Lead author, Corresponding author]
Japanese, Scientific journal

Chemical stability of porous anodic aluminum oxide in both acidic and alkaline solutions
Mana Iwai, Tatsuya Kikuchi
Thin Solid Films, 771, 139784, 139784, Elsevier BV, 2023, [Peer-reviewed], [Last author, Corresponding author]
English, Scientific journal

Nanomorphological changes of anodic aluminum oxide fabricated by anodizing in various phosphate solutions over a wide pH range
Ayasa Terashima, Mana Iwai, Tatsuya Kikuchi
Applied Surface Science, 605, 154687, 2022, [Peer-reviewed], [Last author, Corresponding author]
English, Scientific journal

Rapid electrochemical separation of anodic porous alumina films from aluminum surfaces using a highly safe sodium chloride–ethylene glycol solution　　　　　　　　　　　　　　　
Kazuya Miyamoto, Mana Iwai, Tatsuya Kikuchi
Electrochimica Acta, 427, 140865, 2022, [Peer-reviewed], [Last author, Corresponding author]
Japanese, Scientific journal

Slippery and Sticky Superoleophobicities on Hierarchical Aluminum Surfaces Fabricated by Electrochemical Etching and Anodizing Methods
Tatsuya Kikuchi, Junnosuke Yasuda, Mana Iwai
Journal of The Electrochemical Society, 169, 5, 053509, 2022, [Peer-reviewed], [Lead author, Corresponding author]
Japanese, Scientific journal

陽極酸化によるアルミニウムの表面処理　　　　　　　　　　　　　　　
菊地竜也, 岩井愛
色材協会誌, 95, 85, 91, 2022, [Peer-reviewed], [Invited], [Lead author, Corresponding author]
Japanese, Scientific journal

Formation of Bright White Plasma Electrolytic Oxidation Films with a Uniform Maze-Like Structure by Anodizing Aluminum in Ammonium Tetraborate Solutions
Tatsuya Kikuchi, Miu Sato, Mana Iwai, Daiki Nakajima, Junji Nunomura, Yoshiyuki Oya, Shungo Natsui
Journal of The Electrochemical Society, 169, 4, 043505, 043505, The Electrochemical Society, 2022, [Peer-reviewed], [Lead author, Corresponding author]
English, Scientific journal, Bright white plasma electrolytic oxidation (PEO) films with uniform maze-like structures were obtained by anodizing Al in an ammonium tetraborate solution. High-purity Al plates were galvanostatically anodized in 0.3–2.4 M ammonium tetraborate solutions at 303–343 K and 10–100 Am⁻². A PEO film consisting of an outer porous layer consisting of amorphous alumina and crystalline alumina with α-and γ-phases and an inner amorphous barrier alumina layer was obtained on the Al surface. An extremely uneven PEO film with various pore sizes and many cracks was formed in a 0.3 M ammonium tetraborate solution, whereas a relatively uniform porous PEO film with similar pore sizes was obtained in 0.9–2.4 M solutions. This difference in the PEO film morphology was due to the plasma generation behavior while anodizing. The lightness of the PEO film increased with increasing anodizing time and PEO film thickness; thus, a bright white PEO film measuring 87.5 in lightness (L*) was formed on the Al surface. The water wettability of the PEO film exhibited weak hydrophilicity. Moreover, a superhydrophobic PEO film with a contact angle of 154° was easily fabricated by self-assembled monolayer modification. Similar bright white PEO coatings were successfully fabricated on various industrial alloys.

Droplet behavior analysis on inclined, highly sticky, or slippery superhydrophobic nanostructured surfaces by observation and SPH simulation
Shungo Natsui, Kazui Tonya, Daiki Nakajima, Tatsuya Kikuchi, Hiroshi Nogami
Chemical Engineering Science, 248, 117214, 117214, Elsevier BV, 2022, [Peer-reviewed]
English, Scientific journal

Quantification of the Impact of Residual H2O on Cathodic Behavior in Molten CaCl2 Electrolysis　　　　　　　　　　　　　　　
Shungo Natsui, Ryota Shibuya, Ryosuke O. Suzuki, Tatsuya Kikuchi, Akihisa Ito, Takahiro Sato, Rei Yamamoto, Hiroshi Nogami
Journal of Sustainable Metallurgy, 8, 532, 540, 2022, [Peer-reviewed]
English, Scientific journal

Recent Studies on Titanium Refining: 2017-2020　　　　　　　　　　　　　　　
Ryosuke O. Suzuki, Shungo Natsui, Tatsuya Kikuchi
Materials Transactions, 62, 905, 913, 2021, [Peer-reviewed], [Invited], [Last author]
English, Scientific journal

Fabrication of Porous Alumina by Anodizing Aluminum and Its Applications　　　　　　　　　　　　　　　
Tatsuya Kikuchi, Mana Iwai
Denki Kagaku, 89, 327, 333, 2021, [Invited], [Lead author, Corresponding author]
Japanese, Scientific journal

Fabrication of unique porous alumina films with extremely high porosity and an ultra-flat barrier layer by anodizing aluminum in sodium metaborate
Mana Iwai, Tatsuya Kikuchi
Electrochimica Acta, 399, 139440, 2021, [Peer-reviewed], [Last author, Corresponding author]
Japanese, Scientific journal

Self-Ordering of Porous Anodic Alumina Fabricated by Anodizing in Chromic Acid at High Temperature
Tatsuya Kikuchi, Motoki Yamashita, Mana Iwai, Ryosuke O. Suzuki
Journal of The Electrochemical Society, 168, 9, 093501, 2021, [Peer-reviewed], [Lead author, Corresponding author]
English, Scientific journal

Synthesis of Silicon Sulfide by Using CS2 Gas　　　　　　　　　　　　　　　
Ryosuke O. Suzuki, Yuta Yashima, Takumi Kaneko, Eltefat Ahmadi, Tatsuya Kikuchi, Takafumi Watanabe, Genki Nogami
Metallurgical and Materials Transactions B, 52, 1379, 1391, 2021, [Peer-reviewed]
English, Scientific journal

Self-ordered nanospike porous alumina fabricated under a new regime by an anodizing process in alkaline media
Mana Iwai, Tatsuya Kikuchi, Ryosuke O. Suzuki
Scientific Reports, 11, 1, 7240, 2021, [Peer-reviewed], [Corresponding author]
English, Scientific journal

A Sustainable Approach for Producing Ti and TiS2 from TiC　　　　　　　　　　　　　　　
Eltefat Ahmadi, Ryosuke O Suzuki, Takumi Kaneko, Tatsuya Kikuchi
Metallurgical and Materials Transactions B, 52, 77, 87, 2021, [Peer-reviewed]
English, Scientific journal

Influence of sub-10 nm anodic alumina nanowire morphology formed by two-step anodizing aluminum on water wettability and slipping behavior
Tatsuya Kikuchi, Fumiya Onoda, Mana Iwai, Ryosuke O. Suzuki
Applied Surface Science, 546, 149090, 2021, [Peer-reviewed], [Lead author, Corresponding author]
English, Scientific journal

High-speed galvanostatic anodizing without oxide burning using a nanodimpled aluminum surface for nanoporous alumina fabrication
Mana Iwai, Tatsuya Kikuchi, Ryosuke O. Suzuki
Applied Surface Science, 537, 147852, 2021, [Peer-reviewed], [Corresponding author]
English, Scientific journal

SPH Simulations of binary droplet deformation considering the Fowkes theory
Shungo Natsui, Kazui Tonya, Hiroshi Nogami, Tatsuya Kikuchi, Ryosuke O. Suzuki
Chemical Engineering Science, 229, 116035, 116035, Elsevier BV, 2021, [Peer-reviewed]
English, Scientific journal

Numerical Simulation of Coexisting Solid-liquid Slag Trickle Flow in a Coke Bed by the SPH Method with a Non-Newtonian Fluid Model
Shungo Natsui, Akinori Sawada, Hiroshi Nogami, Tatsuya Kikuchi, Ryosuke O. Suzuki
ISIJ International, 60, 7, 1445, 1452, Iron and Steel Institute of Japan, 15 Jul. 2020, [Peer-reviewed]
English, Scientific journal

Topological Consideration of 3-D Local Void Structure for Static Holdup Site in Packed Bed　　　　　　　　　　　　　　　
Shungo Natsui, Akinori Sawada, Hiroshi Nogami, Tatsuya Kikuchi, Ryosuke O. Suzuki
ISIJ International, 60, 1453, 1460, 2020, [Peer-reviewed]
English, Scientific journal

軽金属学会年間レビュー「腐食・表面処理」　　　　　　　　　　　　　　　
菊地竜也
軽金属, 70, 362, 364, 2020, [Peer-reviewed], [Invited], [Lead author, Corresponding author]
Japanese

Towards a Sustainable Technology for Production of Extra-Pure Ti Metal: Electrolysis of Sulfurized Ti(C,N) in Molten CaCl2　　　　　　　　　　　　　　　
Eltefat Ahmadi, Ryosuke O Suzuki, Tatsuya Kikuchi, Takumi Kaneko, Yuta Yashima
International Journal of Minerals, Metallurgy and Materials, 27, 1635, 1643, 2020, [Peer-reviewed]
Dzongkha, Scientific journal

Anodizing Aluminum and Its Alloys in Etidronic Acid to Enhance Their Corrosion Resistance in a Sodium Chloride Solution
Tatsuya Kikuchi, Yusuke Suzuki, Mana Iwai, Ryosuke O. Suzuki
Journal of The Electrochemical Society, 167, 12, 121502, 2020, [Peer-reviewed], [Lead author, Corresponding author]
English, Scientific journal

陽極酸化によるアルミニウム表面のナノ構造制御と超親水性・超撥水性の発現　　　　　　　　　　　　　　　
菊地竜也, 中島大希, 近藤龍之介, 鈴木亮輔, 夏井俊悟
機能材料, 40, 6, 24, 30, 2020, [Invited], [Lead author, Corresponding author]
Japanese, Scientific journal

Characterization of the Cathodic Thermal Behavior of Molten CaCl2 and Its Hygroscopic Chloride Mixture During Electrolysis
Ryota Shibuya, Shungo Natsui, Hiroshi Nogami, Tatsuya Kikuchi, Ryosuke O. Suzuki
Journal of The Electrochemical Society, 167, 10, 102507, The Electrochemical Society, 2020, [Peer-reviewed]
English, Scientific journal

Photoluminescence from Anodic Aluminum Oxide via Etidronic Acid Anodizing and Enhancing the Intensity　　　　　　　　　　　　　　　
Tatsuya Kikuchi, Shunta Akiya, Kaito Kunimoto, Shungo Natsui, Ryosuke O. Suzuki
Materials Transactions, 61, 1130, 1137, 2020, [Peer-reviewed], [Lead author, Corresponding author]
English, Scientific journal

Initial Structural Changes of Porous Alumina Film via High-Resolution Microscopy Observations
Mana Iwai, Tatsuya Kikuchi, Ryosuke O. Suzuki
ECS Journal of Solid State Science and Technology, 9, 4, 044004, The Electrochemical Society, 2020, [Peer-reviewed], [Corresponding author]
English, Scientific journal

Numerical Study of Binary Trickle Flow of Liquid Iron and Molten Slag in Coke Bed by Smoothed Particle Hydrodynamics
Shungo Natsui, Kazui Tonya, Hiroshi Nogami, Tatsuya Kikuchi, Ryosuke O. Suzuki, Ko-ichiro Ohno, Sohei Sukenaga, Tatsuya Kon, Shingo Ishihara, Shigeru Ueda
Processes, 8, 2, 221, 2020, [Peer-reviewed]
English, Scientific journal

Fabrication of a PEO/AAO Double-layer Anodic Oxide Film via One-Step Anodizing Aluminum in Ammonium Carbonate　　　　　　　　　　　　　　　
Tatsuya Kikuchi, Taiki Taniguchi, Ryosuke O. Suzuki, Shungo Natsui
Thin Solid Films, 697, 137799, 2020, [Peer-reviewed], [Lead author, Corresponding author]
English, Scientific journal

Visualization of TiO2 reduction behavior in molten salt electrolysis　　　　　　　　　　　　　　　
Shungo Natsui, Takuya Sudo, Ryota Shibuya, Hiroshi Nogami, Tatsuya Kikuchi, Ryosuke O. Suzuki
Metallurgical Materials Transactions B, 51, 11, 15, 2020, [Peer-reviewed]
English, Scientific journal

Nanostructural characterization of ordered gold particle arrays fabricated via aluminum anodizing, sputter coating, and dewetting
Hiroki Ikeda, Mana Iwai, Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Norihito Sakaguchi, Ryosuke O. Suzuki
Applied Surface Science, 465, 747, 753, 2019, [Peer-reviewed], [Corresponding author]
English, Scientific journal

高温融体界面と分散層挙動の数値解析－Smoothed Particle Hydrodynamics法の製錬プロセス解析への応用－　　　　　　　　　　　　　　　
夏井俊悟, 梨元涼太, 問谷一偉, 澤田旺成, 菊地竜也, 鈴木亮輔
Journal of MMIJ, 135, 71, 82, 2019, [Invited]
Japanese, Scientific journal

A superhydrophilic Aluminum Surface with Fast Water Evaporation Based on Anodic Alumina Bundle Structures via Anodizing in Pyrophosphoric Acid　　　　　　　　　　　　　　　
Daiki Nakajima, Tatsuya Kikuchi, Taiki Yoshioka, Hisayoshi Matsushima, Mikito Ueda, Ryosuke O. Suzuki, Shungo Natsui
Materials, 12, 3497, 2019, [Peer-reviewed], [Corresponding author]
English, Scientific journal

TiO2溶融塩電解還元時のガス発生反応　　　　　　　　　　　　　　　
原口靖史, 澁谷凌太, 夏井俊悟, 菊地竜也, 鈴木亮輔
日本金属学会誌, 83, 441, 448, 2019, [Peer-reviewed], [Invited]
Japanese, Scientific journal

Electrochemical and Morphological Characterization of Porous Alumina Formed by Galvanostatic Anodizing in Etidronic Acid
Mana Iwai, Tatsuya Kikuchi, Ryosuke O. Suzuki, Shungo Natsui
Electrochimica Acta, 320, 134606, 2019, [Peer-reviewed], [Corresponding author]
English, Scientific journal

Corrosion-Resistant Porous Alumina Formed via Anodizing Aluminum in Etidronic Acid and its Pore-Sealing Behavior in Boiling Water　　　　　　　　　　　　　　　
Yusuke Suzuki, Kai Kawahara, Tatsuya Kikuchi, Ryosuke O. Suzuki, Shungo Natsui
Journal of The Electrochemical Society, 166, C261, C269, 2019, [Peer-reviewed], [Corresponding author]
English, Scientific journal

Fabrication of Anodic Porous Alumina via Galvanostatic Anodizing in Alkaline Sodium Tetraborate Solution and Their Morphology　　　　　　　　　　　　　　　
Tatsuya Kikuchi, Kaito Kunimoto, Hiroki Ikeda, Daiki Nakajima, Ryosuke O. Suzuki, Shungo Natsui
Journal of Electroanalytical Chemistry, 846, 113152, 2019, [Peer-reviewed], [Lead author, Corresponding author]
English, Scientific journal

Solubility of CaS in CaCl2-LiCl Eutectic Melt　　　　　　　　　　　　　　　
Takahiro Matsuzaki, Ryosuke O. Suzuki, Shungo Natsui, Tatsuya Kikuchi, Mikito Ueda
Materials Transactions, 60, 411, 415, 2019, [Peer-reviewed]
English, Scientific journal

Solubility of CaS in Molten CaCl2　　　　　　　　　　　　　　　
Takahiro Matsuzaki, Ryosuke O. Suzuki, Shungo Natsui, Tatsuya Kikuchi, Mikito Ueda
Materials Transactions, 60, 386, 390, 2019, [Peer-reviewed]
English, Scientific journal

Metal Production in CaCl2-based Melts
Ryosuke O. Suzuki, Hiromi Noguchi, Yasushi Haraguchi, Shungo Natsui, Tatsuya Kikuchi
ECS Transactions, 86, 14, 45, 53, Sep. 2018, [Peer-reviewed], [Invited]
English, Scientific journal, In order to produce metals directly from the oxides, molten CaO-CaCl2 mixture offers a strong reducing environment. CaO in CaCl2 melt electrochemically decomposes into metallic Ca and O2- by applying a certain voltage larger than the theoretical decomposition voltage of CaO. Ca, deposited on cathode and dissolved in the melt, can work as strong reductant. Various metals such as Ti can be produced directly from their stable oxides. Although this calciothermic reduction forms CaO as by-product close to the cathode, CaO dissolves in CaCl2 melt and decomposes again by electrolysis. This OS process could be applied to solid, liquid and gaseous oxides. By applying the sulfides, good quality of metal is realized because they do not form solid solution of sulfur.

Calciothermic Reduction and Electrolysis of Sulfides in CaCl2 Melt
Ryosuke O. Suzuki, Nobuyoshi Suzuki, Yuta Yashima, Shungo Natsui, Tatsuya Kikuchi
Proceedings of the First Global Conference on Extractive Metallurgy (Extraction2018), ed. by B.R.Davis, M.S.Moats, S.Wang, The Minerals, Metals & Materials Society 2018, Springer, Cham, Switzerland, 763, 771, Sep. 2018, [Peer-reviewed]
English, International conference proceedings, A new metallurgical process via sulfide is proposed: a sulfide is produced at a high temperature from its metallic oxide using gaseous CS2, and this sulfide is electrochemically reduced to its metallic state using molten salt. This combined process via sulfide is effective to obtain high purity of metallic powder, even if the metal in its oxide is strongly combined with oxygen. For example, it is not easy to reduce stable oxide TiO2, and only Ca can remove oxygen to form α-Ti. However, a fairly large amount of oxygen remains as Ti–O solid solution. Because the solubility of S in Ti is very small, this proposal was examined experimentally both on the conversion of TiO2 to TiS2 and on the successive reduction of TiS2 to Ti. TiO2 powder was exposed to CS2 gas flow at 1073 K, and the conversion to TiS2 was confirmed. TiS2 could be reduced to Ti powder either by calciothermic reduction or electrolysis in a CaCl2 melt. By Ca reduction at 1133 K in CaCl2 melt, sulfur concentration decreased to 0.03 mass%S when the amount greater than twice the stoichiometric calcium amount is added. By electrochemical reduction at 1173 K in CaCl2–CaS melt, S concentration significantly decreased to 0.01 mass%S when four times larger amount of electric charge was supplied.

Mirror-finished superhydrophobic aluminum surfaces modified by anodic alumina nanofibers and self-assembled monolayers
Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki
Applied Surface Science, 440, 506, 513, Elsevier B.V., 15 May 2018, [Peer-reviewed], [Corresponding author]
English, Scientific journal

Fabrication of ordered submicrometer-scale convex lens array via nanoimprint lithography using an anodized aluminum mold
Kai Kawahara, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki
Microelectronic Engineering, 185-186, 61, 68, Elsevier B.V., 05 Jan. 2018, [Peer-reviewed], [Corresponding author]
English, Scientific journal

Spontaneous colloidal metal network formation driven by molten salt electrolysis　　　　　　　　　　　　　　　
Shungo Natsui, Takuya Sudo, Takumi Kaneko, Kazui Tonya, Daiki Nakajima, Tatsuya Kikuchi, Ryosuke O. Suzuki
Scientific Reports, 8, 13114, 2018, [Peer-reviewed]
English, Scientific journal

Column and film lifetimes in bubble-induced two-liquid flow　　　　　　　　　　　　　　　
Shungo Natsui, Ryota Nashimoto, Daiki Nakajima, Tatsuya Kikuchi, Ryosuke O. Suzuki
Physical Review E, 97, 062802, 2018, [Peer-reviewed]
English, Scientific journal

Holdup characteristics of melt in coke beds of different shapes　　　　　　　　　　　　　　　
Shungo Natsui, Akinori Sawada, Tatsuya Kikuchi, Ryosuke O. Suzuki
ISIJ International, 58, 1742, 1744, 2018, [Peer-reviewed]
English, Scientific journal

回転強度試験における時系列3D scanningと固気液三相の移動解析によるコークス変形が及ぼす充填層内流れ特性評価　　　　　　　　　　　　　　　
夏井俊悟, 澤田旺成, 照井光輝, 柏原佑介, 菊地竜也, 鈴木亮輔
鉄と鋼, 104, 347, 357, 2018, [Peer-reviewed]
Japanese, Scientific journal

Reduction of CaTiO3 by electrolysis in the molten salt CaCl2-CaO
Hiromi Noguchi, Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki
Electrochemistry, 86, 2, 82, 87, Electrochemical Society of Japan, 2018, [Peer-reviewed]
English, Scientific journal

表面ナノ構造に基づく新規機能性アルミニウム材料の開発　　　　　　　　　　　　　　　
菊地竜也, 中島大希, 池田大樹, 近藤竜之介, 河原魁, 國本海斗, 岩井愛, 鈴木雄介, 秋谷俊太, 竹永章正, 西長理, 夏井俊悟, 鈴木亮輔
軽金属, 68, 211, 218, 2018, [Peer-reviewed], [Invited], [Lead author, Corresponding author]
Japanese, Scientific journal

Detailed Modeling of Melt Dripping in Coke Bed by DEM - SPH
Natsui, Shungo, Ohno, Ko-ichiro, Sukenaga, Sahel, Kikuchi, Tatsuya, Suzuki, Ryosuke O.
ISIJ INTERNATIONAL, 58, 2, 282, 291, 2018, [Peer-reviewed]
English, Scientific journal

DEM-SPH study of molten slag trickle flow in coke bed
Shungo Natsui, Akinori Sawada, Koki Terui, Yusuke Kashihara, Tatsuya Kikuchi, Ryosuke O. Suzuki
Chemical Engineering Science, 175, 25, 39, Elsevier Ltd, 2018, [Peer-reviewed]
English, Scientific journal

アルミニウムのポーラス型アノード酸化皮膜　　　　　　　　　　　　　　　
菊地竜也, 岩井愛, 中島大希, 夏井俊悟, 鈴木亮輔
表面技術, 69, 554, 561, 2018, [Peer-reviewed], [Invited], [Lead author, Corresponding author]
Japanese, Scientific journal

Advancing and Receding Contact Angle Investigations for Highly Sticky and Slippery Aluminum Surfaces Fabricated from Nanostructured Anodic Oxide　　　　　　　　　　　　　　　
Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki
RSC Advances, 8, 37315, 37323, 2018, [Peer-reviewed], [Corresponding author]
English, Scientific journal

Superhydrophilic and superhydrophobic aluminum alloys fabricated via pyrophosphoric acid anodizing and fluorinated SAM modification
Ryunosuke Kondo, Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki
JOURNAL OF ALLOYS AND COMPOUNDS, 725, 379, 387, Nov. 2017, [Peer-reviewed], [Corresponding author]
English, Scientific journal

Fabrication of porous tungsten oxide via anodizing in an ammonium nitrate/ethylene glycol/water mixture for visible light-driven photocatalyst
Tatsuya Kikuchi, Jun Kawashima, Shungo Natsui, Ryosuke O. Suzuki
APPLIED SURFACE SCIENCE, 422, 130, 137, Nov. 2017, [Peer-reviewed], [Lead author, Corresponding author]
English, Scientific journal

Branched morphology of Nb powder particles fabricated by calciothermic reduction in CaCl2 melt
Nobuyoshi Suzuki, Ryosuke O. Suzuki, Shungo Natsui, Tatsuya Kikuchi
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 110, 58, 63, Nov. 2017, [Peer-reviewed]
English, Scientific journal

Advanced hard anodic alumina coatings via etidronic acid anodizing
Tatsuya Kikuchi, Akimasa Takenaga, Shungo Natsui, Ryosuke O. Suzuki
SURFACE & COATINGS TECHNOLOGY, 326, 72, 78, Oct. 2017, [Peer-reviewed], [Lead author, Corresponding author]
English, Scientific journal

Morphology of lithium droplets electrolytically deposited in LiCl-KCl-Li2O melt
Shungo Natsui, Takuya Sudo, Tatsuya Kikuchi, Ryosuke O. Suzuki
ELECTROCHEMISTRY COMMUNICATIONS, 81, 43, 47, Aug. 2017, [Peer-reviewed]
English, Scientific journal

Capturing the non-spherical shape of granular media and its trickle flow characteristics using fully-Lagrangian method
Natsui, Shungo, Nashimoto, Ryota, Kikuchi, Tatsuya, Suzuki, Ryosuke O., Takai, Hifumi, Ohno, Ko-ichiro, Sukenaga, Sohei
AICHE JOURNAL, 63, 6, 2257, 2271, Jun. 2017, [Peer-reviewed]
English, Scientific journal

An SPH Study of Molten Matte-Slag Dispersion
Shungo Natsui, Ryota Nashimoto, Takehiko Kumagai, Tatsuya Kikuchi, Ryosuke O. Suzuki
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 48, 3, 1792, 1806, Jun. 2017, [Peer-reviewed]
English, Scientific journal

Nanostructural characterization of large-scale porous alumina fabricated via anodizing in arsenic acid solution
Shunta Akiya, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki
APPLIED SURFACE SCIENCE, 403, 652, 661, May 2017, [Peer-reviewed]
English, Scientific journal

1,10-Phenanthrolineを添加した1-ethyl-3-methylimidazolium chloride–AlCl3イオン液体中における光沢Alめっきの形成
高橋久智美, 行方千賀, 菊地竜也, 松島永佳, 上田幹人
表面技術, 68, 4, 208, 212, 表面技術協会, 2017, [Peer-reviewed]
Japanese, Scientific journal

Electrolytic reduction of V3S4 in molten CaCl2
Takahiro Matsuzaki, Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki
MATERIALS TRANSACTIONS, 58, 3, 371, 376, 2017, [Peer-reviewed]
English, Scientific journal

Calcium Reduction of TiS2 in CaCl2 Melt
N. Suzuki, M. Tanaka, H. Noguchi, S. Natsui, T. Kikuchi, R. O. Suzuki
MATERIALS TRANSACTIONS, 58, 3, 367, 370, 2017, [Peer-reviewed]
English, Scientific journal

Reduction of CaTiO3 in Molten CaCl2 - as Basic Understanding of Electrolysis
Ryosuke O. Suzuki, Hiromi Noguchi, Hiromasa Hada, Shungo Natsui, Tatsuya Kikuchi
MATERIALS TRANSACTIONS, 58, 3, 341, 349, 2017, [Peer-reviewed]
English, Scientific journal

Observation of Interface Deformation in Sodium Polytungstate Solution-Silicone Oil System due to Single Rising Bubble
Shungo Natsui, Ryota Nashimoto, Daiki Nakajima, Takehiko Kumagai, Tatsuya Kikuchi, Ryosuke O. Suzuki
ISIJ INTERNATIONAL, 57, 2, 394, 396, 2017, [Peer-reviewed]
English, Scientific journal

Superhydrophilicity of a nanofiber-covered aluminum surface fabricated via pyrophosphoric acid anodizing
Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki
APPLIED SURFACE SCIENCE, 389, 173, 180, Dec. 2016, [Peer-reviewed]
English, Scientific journal

Fabrication of self-ordered porous alumina via anodizing in sulfate solutions
Ryunosuke Kondo, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki
MATERIALS LETTERS, 183, 285, 289, Nov. 2016, [Peer-reviewed]
English, Scientific journal

Exploration for the Self-ordering of Porous Alumina Fabricated via Anodizing in Etidronic Acid
Akimasa Takenaga, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki
ELECTROCHIMICA ACTA, 211, 515, 523, Sep. 2016, [Peer-reviewed]
English, Scientific journal

Temperature Dependence of Behavior of Interface Between Molten Sn and LiCl-KCl Eutectic Melt Due to Rising Gas Bubble
Shungo Natsui, Ryota Nashimoto, Hifumi Takai, Takehiko Kumagai, Tatsuya Kikuchi, Ryosuke O. Suzuki
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 47, 3, 1532, 1537, Jun. 2016, [Peer-reviewed]
English, Scientific journal

Self-ordered Porous Alumina Fabricated via Phosphonic Acid Anodizing
Shunta Akiya, Tatsuya Kikuchi, Shungo Natsui, Norihito Sakaguchi, Ryosuke O. Suzuki
ELECTROCHIMICA ACTA, 190, 471, 479, Feb. 2016, [Peer-reviewed]
English, Scientific journal

SPH simulations of the behavior of the interface between two immiscible liquid stirred by the movement of a gas bubble
Shungo Natsui, Ryota Nashimoto, Hifumi Takai, Takehiko Kumagai, Tatsuya Kikuchi, Ryosuke O. Suzuki
CHEMICAL ENGINEERING SCIENCE, 141, 342, 355, Feb. 2016, [Peer-reviewed]
English, Scientific journal

アノード酸化によるアルミナナノファイバーの作製と表面機能化　　　　　　　　　　　　　　　
菊地竜也, 中島大希, 夏井俊悟, 鈴木亮輔
表面技術, 67, 527, 532, 2016, [Peer-reviewed], [Invited]
Japanese, Scientific journal

Model study of the effect of particles structure on the heat and mass transfer through the packed bed in ironmaking blast furnace
Shungo Natsui, Hifumi Takai, Ryota Nashimoto, Tatsuya Kikuchi, Ryosuke O. Suzuki
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 91, 1176, 1186, Dec. 2015, [Peer-reviewed]
English, Scientific journal

Fabrication of a novel aluminum surface covered by numerous high-aspect-ratio anodic alumina nanofibers
Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Norihito Sakaguchi, Ryosuke O. Suzuki
APPLIED SURFACE SCIENCE, 356, 54, 62, Nov. 2015, [Peer-reviewed]
English, Scientific journal

Polymer nanoimprinting using an anodized aluminum mold for structural coloration
Tatsuya Kikuchi, Osamu Nishinaga, Shungo Natsui, Ryosuke O. Suzuki
APPLIED SURFACE SCIENCE, 341, 19, 27, Jun. 2015, [Peer-reviewed]
English, Scientific journal

Niobium powder synthesized by calciothermic reduction of niobium hydroxide for use in capacitors
Masahiko Baba, Tatsuya Kikuchi, Ryosuke O. Suzuki
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 78, 101, 109, Mar. 2015, [Peer-reviewed]
English, Scientific journal

Fabrication of Self-Ordered Porous Alumina via Etidronic Acid Anodizing and Structural Color Generation from Submicrometer-Scale Dimple Array
Tatsuya Kikuchi, Osamu Nishinaga, Shungo Natsui, Ryosuke O. Suzuki
ELECTROCHIMICA ACTA, 156, 235, 243, Feb. 2015, [Peer-reviewed]
English, Scientific journal

Euler-Lagrange法による高炉モデル　　　　　　　　　　　　　　　
夏井俊悟, 菊地竜也, 鈴木亮輔
まてりあ, 54, 432, 435, 2015, [Invited]
Japanese, Scientific journal

Optimum Exploration for the Self-Ordering of Anodic Porous Alumina Formed via Selenic Acid Anodizing
Shunta Akiya, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki
Journal of The Electrochemical Society, 162, 10, E244, E250, Electrochemical Society, 2015, [Peer-reviewed]
English, Scientific journal, Improvements of the regularity of the arrangement of anodic porous alumina formed by selenic acid anodizing were investigated under various operating conditions. The oxide burning voltage increased with the stirring rate of the selenic acid solution, and the high applied voltage without oxide burning was achieved by vigorously stirring the solution. The regularity of the porous alumina was improved as the anodizing time and surface flatness increased. Conversely, the purity of the 99.5–99.9999 wt% aluminum specimens without second phases of metals and metallic compounds was not affected by the regularity of the porous alumina formed by selenic acid anodizing. The porous alumina was also self-ordered on/around a defect, such as a grain boundary, under self-ordering high voltage anodizing conditions. A highly ordered cell arrangement measuring 111 nm in diameter was successfully fabricated over the whole aluminum surface by selenic acid anodizing using a 99.999 wt% aluminum plate at 273 K and 46 V for 24 h under vigorous stirring conditions.

Carbon Nanotube Synthesis via the Calciothermic Reduction of Carbon Dioxide with Iron Additives
Tatsuya Kikuchi, Ryoma Ishida, Shungo Natsui, Takehiko Kumagai, Isao Ogino, Norihito Sakaguchi, Mikito Ueda, Ryosuke O. Suzuki
ECS Solid State Letters, 4, 9, M19, M22, Electrochemical Society, 2015, [Peer-reviewed]
English, Scientific journal, The novel fabrication of multi-walled carbon nanotube (MWCNT)/cementite (Fe3C) nanocomposites was demonstrated via the calciothermic reduction of carbon dioxide (CO2) through electrolysis in molten CaCl2/CaO with iron additives at 1173 K. In this technique, CO2 generated from a graphite anode is reduced to carbon with a metallic calcium reductant formed on a graphite cathode via electrolysis in molten salt. Calciothermic reduction without iron additives resulted in the formation of onion-like carbons (OLCs) with spherical graphite layers and thin graphite sheets. In contrast, MWCNT/Fe3C nanocomposites and OLCs were successfully fabricated via calciothermic reduction with iron additives through their catalytic activities.

Porous Aluminum Oxide Formed by Anodizing in Various Electrolyte Species
Tatsuya Kikuchi, Daiki Nakajima, Osamu Nishinaga, Shungo Natsui, Ryosuke O. Suzuki
CURRENT NANOSCIENCE, 11, 5, 560, 571, 2015, [Peer-reviewed], [Invited]
English, Scientific journal

Characterization of Liquid Trickle Flow in Poor-Wetting Packed Bed
Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki, Tatsuya Kon, Shigeru Ueda, Hiroshi Nogami
ISIJ International, 55, 6, 1259, 1266, The Iron and Steel Institute of Japan, 2015, [Peer-reviewed]
English, Scientific journal, A low coke rate operation of a blast furnace tends to cause deterioration of the gas permeability. The liquid iron and molten slag dripping under the melting zone influences the gas flow and permeability in the lower part of the furnace. A computational fluid dynamic model, using a particle-based simulation, is presented for characterization of the melt dripping behavior in a packed bed. In this work, the validity of the liquid passing conditions based on the gravity to surface tension ratio was confirmed. The melt shape produces an "icicle," "droplet," and "dome" forms based on the change of the surface tension and density absolute values. Even with an identical liquid volume passage, the form of the liquid flow changed by the pressure from the liquid's upper portion. Even if it has identical gravity and surface tension ratios, the liquid flow changes with the volume of the liquid phase and its form.

Self-ordered Aluminum Anodizing in Phosphonoacetic Acid and Its Structural Coloration
Akimasa Takenaga, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki
ECS Solid State Letters, 4, 8, P55, P58, 2015, [Peer-reviewed]
English, Scientific journal, Ordered anodic porous alumina with large-scale periodicity was fabricated via phosphonoacetic acid anodizing. Aluminum specimens were anodized in a 0.1–0.9 M phosphonoacetic acid solution under various electrochemical operating conditions, and optimum anodizing at 205–225 V exhibited self-ordering growth of the porous alumina. These self-ordering voltages during phosphonoacetic acid anodizing filled an undiscovered vacant region in the linear relationship between the self-ordering voltage and the cell diameter. The nanostructured aluminum surface formed via self-ordering phosphonoacetic acid anodizing produced a bright structural coloration with a visible light wavelength of 500–700 nm, which is useful for optical nanoapplications.

Highly Ordered Anodic Alumina Nanofibers Fabricated via Two Distinct Anodizing Processes
Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki
ECS Electrochemistry Letters, 4, 5, H14, H17, The Electrochemical Society, 2015, [Peer-reviewed]
English, Scientific journal, Fabrication of high-density, highly ordered anodic alumina nanofibers was demonstrated via two distinct anodizing processes: porous and fibrous oxide formations. Highly ordered aluminum dimple arrays were fabricated via sulfuric/oxalic acid anodizing and selective porous alumina dissolution. Subsequent pyrophosphoric acid anodizing using the nanostructured aluminum surface caused anodic alumina nanofibers to grow preferentially at the six apexes of the ordered hexagonal aluminum dimples under the appropriate electrochemical conditions. Well-defined, high-density, highly ordered anodic alumina nanofibers with 37–75 nm periodic spacing and at densities of 1.4–5.6 × 1014 m−2 were successfully fabricated on the aluminum surface via two distinct anodizing processes.

CO Gas Production by Molten Salt Electrolysis from CO2 Gas
Fumiya Matsuura, Takafumi Wakamatsu, Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki
ISIJ INTERNATIONAL, 55, 2, 404, 408, 2015, [Peer-reviewed]
English, Scientific journal

Solubility of gaseous carbon dioxide in molten LiCL-Li2O
Takafumi Wakamatsu, Takuya Uchiyama, Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki
FLUID PHASE EQUILIBRIA, 385, 48, 53, Jan. 2015, [Peer-reviewed]
English, Scientific journal

Growth behavior of anodic oxide formed by aluminum anodizing in glutaric and its derivative acid electrolytes
Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki
APPLIED SURFACE SCIENCE, 321, 364, 370, Dec. 2014, [Peer-reviewed]
English, Scientific journal

Numerical Analysis of Carbon Monoxide-Hydrogen Gas Reduction of Iron Ore in a Packed Bed by an Euler-Lagrange Approach
Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 45, 6, 2395, 2413, Dec. 2014, [Peer-reviewed]
English, Scientific journal

Fabrication of anodic porous alumina via anodizing in cyclic oxocarbon acids
Tatsuya Kikuchi, Daiki Nakajima, Jun Kawashima, Shungo Natsui, Ryosuke O. Suzuki
APPLIED SURFACE SCIENCE, 313, 276, 285, Sep. 2014, [Peer-reviewed]
English, Scientific journal

Rapid reduction of titanium dioxide nano-particles by reduction with a calcium reductant
Tatsuya Kikuchi, Masumi Yoshida, Shiki Matsuura, Shungo Natsui, Etsuji Tsuji, Hiroki Habazaki, Ryosuke O. Suzuki
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 75, 9, 1041, 1048, Sep. 2014, [Peer-reviewed]
English, Scientific journal

Self-Ordering Behavior of Anodic Porous Alumina via Selenic Acid Anodizing
Tatsuya Kikuchi, Osamu Nishinaga, Shungo Natsui, Ryosuke O. Suzuki
ELECTROCHIMICA ACTA, 137, 728, 735, Aug. 2014, [Peer-reviewed]
English, Scientific journal

Fabrication of Anodic Porous Alumina by Squaric Acid Anodizing
Tatsuya Kikuchi, Tsuyoshi Yamamoto, Shungo Natsui, Ryosuke O. Suzuki
ELECTROCHIMICA ACTA, 123, 14, 22, Mar. 2014, [Peer-reviewed]
English, Scientific journal

Fabrication of a micro-porous Ti-Zr alloy by electroless reduction with a calcium reductant for electrolytic capacitor applications
Tatsuya Kikuchi, Masumi Yoshida, Yoshiaki Taguchi, Hiroki Habazaki, Ryosuke O. Suzuki
JOURNAL OF ALLOYS AND COMPOUNDS, 586, 148, 154, Feb. 2014, [Peer-reviewed]
English, Scientific journal

Fabrication of Anodic Nanoporous Alumina via Acetylenedicarboxylic Acid Anodizing
Tatsuya Kikuchi, Osamu Nishinaga, Shungo Natsui, Ryosuke O. Suzuki
ECS Electrochemistry Letters, 3, 7, C25, C28, The Electrochemical Society, 2014, [Peer-reviewed]
English, Scientific journal, The nano-morphologies of anodic porous alumina formed via anodizing in a newelectrolyte, acetylenedicarboxylic acid (ADCA), are described. Anodic oxides grewuniformly on the aluminum at voltage of 87.5-95.0 V, but a burned black oxide filmwas formed at higher voltage. The burning voltage and the current density understeady-state oxide growth decreased with solution temperature. An anodic porousalumina film with a cell size of 250 nm and nanopores measuring 100 nm could besuccessfully obtained by ADCA anodizing. The anodic porous alumina possessednumerous non-straight nanopores due to the branching and extinction of the nanoporesduring anodizing.

Stable Mesh-free Particle Simulation for Direct Analysis of Gas-Liquid Two-Phase Flow　　　　　　　　　　　　　　　
Shungo Natsui, Hifumi Takai, Takehiko Kumagao, Tatsuya Kikuchi, Ryosuke O. Suzuki
Chemical Engineering Science, 111, 286, 298, 2014, [Peer-reviewed]
English, Scientific journal

Ultra-High Density Single Nanometer-Scale Anodic Alumina Nanofibers Fabricated by Pyrophosphoric Acid Anodizing
Tatsuya Kikuchi, Osamu Nishinaga, Daiki Nakajima, Jun Kawashima, Shungo Natsui, Norihito Sakaguchi, Ryosuke O. Suzuki
Scientific Reports, 4, 7411, 7411, Nature Publishing Group, 2014, [Peer-reviewed]
English, Scientific journal, Anodic oxide fabricated by anodizing has been widely used for nanostructural engineering, but the nanomorphology is limited to only two oxides: anodic barrier and porous oxides. Therefore, the discovery of an additional anodic oxide with a unique nanofeature would expand the applicability of anodizing. Here we demonstrate the fabrication of a third-generation anodic oxide, specifically, anodic alumina nanofibers, by anodizing in a new electrolyte, pyrophosphoric acid. Ultra-high density single nanometer-scale anodic alumina nanofibers (1010 nanofibers/cm(2)) consisting of an amorphous, pure aluminum oxide were successfully fabricated via pyrophosphoric acid anodizing. The nanomorphologies of the anodic nanofibers can be controlled by the electrochemical conditions. Anodic tungsten oxide nanofibers can also be fabricated by pyrophosphoric acid anodizing. The aluminum surface covered by the anodic alumina nanofibers exhibited ultra-fast superhydrophilic behavior, with a contact angle of less than 16, within 1 second. Such ultra-narrow nanofibers can be used for various nanoapplications including catalysts, wettability control, and electronic devices.

Multiphase Particle Simulation of Gas Bubble Passing Through Liquid/Liquid Interfaces
Shungo Natsui, Hifumi Takai, Takehiko Kumagai, Tatsuya Kikuchi, Ryosuke O. Suzuki
MATERIALS TRANSACTIONS, 55, 11, 1707, 1715, 2014, [Peer-reviewed]
English, Scientific journal

Porous anodic oxide films on aluminum and their nanofabrication
Tatsuya Kikuchi, Daiki Nakajima, Osamu Nishinaga, Shungo Natsui, Ryosuke O. Suzuki
Keikinzoku/Journal of Japan Institute of Light Metals, 64, 10, 476, 482, Japan Institute of Light Metals, 2014, [Invited]
Japanese, Scientific journal

Aluminum bulk micromachining through an anodic oxide mask by electrochemical etching in an acetic acid/perchloric acid solution
Tatsuya Kikuchi, Yuhta Wachi, Masatoshi Sakairi, Ryosuke O. Suzuki
MICROELECTRONIC ENGINEERING, 111, 14, 20, Nov. 2013, [Peer-reviewed]
English, Scientific journal

Formation of alumina films with nano-dot structures by successive liquid phase deposition, anodizing, and substrate dissolution
M. Sakairi, R. Fujita, H. Jha, T. Kikuchi
SURFACE AND INTERFACE ANALYSIS, 45, 10, 1510, 1516, Oct. 2013, [Peer-reviewed]
English, Scientific journal

CO2 gas decomposition to carbon by electro-reduction in molten salts
Koya Otake, Hiroshi Kinoshita, Tatsuya Kikuchi, Ryosuke O. Suzuki
ELECTROCHIMICA ACTA, 100, 293, 299, Jun. 2013, [Peer-reviewed]
English, Scientific journal

Formation of niobium powder by electrolysis in molten salt
Isamu Ueda, Masahiko Baba, Tatsuya Kikuchi, Ryosuke O. Suzuki
ELECTROCHIMICA ACTA, 100, 269, 274, Jun. 2013, [Peer-reviewed]
English, Scientific journal

Fabrication of a meniscus microlens array made of anodic alumina by laser irradiation and electrochemical techniques
Tatsuya Kikuchi, Yuhta Wachi, Taka-aki Takahashi, Masatoshi Sakairi, Ryosuke O. Suzuki
ELECTROCHIMICA ACTA, 94, 269, 276, Apr. 2013, [Peer-reviewed]
English, Scientific journal

Rapid fabrication of self-ordered porous alumina with 10-/sub-10-nm-scale nanostructures by selenic acid anodizing
Osamu Nishinaga, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki
Scientific Reports, 3, 2748, Nature publishing group, 2013, [Peer-reviewed]
English, Scientific journal, Anodic porous alumina has been widely investigated and used as a nanostructure template in various nanoapplications. The porous structure consists of numerous hexagonal cells perpendicular to the aluminum substrate and each cell has several tens or hundreds of nanoscale pores at its center. Because the nanomorphology of anodic porous alumina is limited by the electrolyte during anodizing, the discovery of additional electrolytes would expand the applicability of porous alumina. In this study, we report a new self-ordered nanoporous alumina formed by selenic acid (H2SeO4) anodizing. By optimizing the anodizing conditions, anodic alumina possessing 10-nm-scale pores was rapidly assembled (within 1 h) during selenic acid anodizing without any special electrochemical equipment. Novel sub-10-nm-scale spacing can also be achieved by selenic acid anodizing and metal sputter deposition. Our new nanoporous alumina can be used as a nanotemplate for various nanostructures in 10-/sub-10-nm-scale manufacturing.

Growth Behavior of Anodic Porous Alumina Formed in Malic Acid Solution
Tatsuya Kikuchi, Tsuyoshi Yamamoto, Ryosuke O. Suzuki
Applied Surface Science, 284, 907, 913, Elsevier, 2013, [Peer-reviewed]
English, Scientific journal, The growth behavior of anodic porous alumina formed on aluminum by anodizing in malic acid solutions was investigated. High-purity aluminum plates were electropolished in CH3COOH/HClO4 solutions and then anodized in 0.5 M malic acid solutions at 293 K and constant cell voltages of 200–350 V. The anodic porous alumina grew on the aluminum substrate at voltages of 200–250 V, and a black, burned oxide film was formed at higher voltages. The nanopores of the anodic oxide were only formed at grain boundaries of the aluminum substrate during the initial stage of anodizing, and then the growth region extended to the entire aluminum surface as the anodizing time increased. The anodic porous alumina with several defects was formed by anodizing in malic acid solution at 250 V, and oxide cells were approximately 300–800 nm in diameter.

Production of Nb-Ti-Ni alloy in molten CaCl2　　　　　　　　　　　　　　　
Ryunosuke Enmei, Tatsuya Kikuchi, Ryosuke O. Suzuki
Electrochimica Acta, 100, 269, 274, 2013, [Peer-reviewed]
English, Scientific journal

Calciothermic reduction of NiO by molten salt electrolysis of CaO in CaCl2 melt
Reyna Famila Descallar-Arriesgado, Naoto Kobayashi, Tatsuya Kikuchi, Ryosuke O. Suzuki
ELECTROCHIMICA ACTA, 56, 24, 8422, 8429, Oct. 2011, [Peer-reviewed]
English, Scientific journal

Corrosion resistant TiO2 film formed on magnesium by liquid phase deposition treatment
R. Fujita, M. Sakairi, T. Kikuchi, S. Nagata
ELECTROCHIMICA ACTA, 56, 20, 7180, 7188, Aug. 2011, [Peer-reviewed]
English, Scientific journal

アルミニウムおよびその酸化物からなる微細配線形成法の開発　　　　　　　　　　　　　　　
菊地竜也, 藤田哲, 坂入正敏
表面技術, 62, 451, 455, 2011, [Invited]
Japanese, Scientific journal

溶液フロー型液滴セルによる樹枝上への局部銅めっきと金属構造体の作製　　　　　　　　　　　　　　　
坂入正敏, 後藤良仁, 菊地竜也, 伏見公志
表面技術, 62, 511, 515, 2011, [Peer-reviewed]
Japanese, Scientific journal

Repassivation behavior of titanium in artificial saliva investigated with a photon rupture method
Masatoshi Sakairi, Misaki Kinjyo, Tatsuya Kikuchi
ELECTROCHIMICA ACTA, 56, 4, 1786, 1791, Jan. 2011, [Peer-reviewed]
English, Scientific journal

Corrosion of Al-Sn-Bi alloys in alcohols at high temperatures. Part II: Effect of anodizing on corrosion
Tatsuya Kikuchi, Yasuhito Hara, Masatoshi Sakairi, Tetsu Yonezawa, Akira Yamauchi, Hideaki Takahashi
CORROSION SCIENCE, 52, 8, 2525, 2534, Aug. 2010, [Peer-reviewed]
English, Scientific journal

Corrosion of Al-Sn-Bi alloys in alcohol at high temperatures. Part I: Effects of the metallurgical structure of the alloys and the metal salt additions to alcohol
Tatsuya Kikuchi, Yasuhito Hara, Masatoshi Sakairi, Tetsu Yonezawa, Akira Yamauchi, Hideaki Takahashi
CORROSION SCIENCE, 52, 4, 1482, 1491, Apr. 2010, [Peer-reviewed]
English, Scientific journal

The influence of initial surface conditions on field crystallization of anodic aluminum oxide films determined by synchrotron X-ray diffraction
M. Sakairi, T. Kikuchi, T. Suda, D. Nagasawa, M. Sato
SURFACE AND INTERFACE ANALYSIS, 42, 4, 215, 220, Apr. 2010, [Peer-reviewed]
English, Scientific journal

Aluminum Microstructures on Anodic Alumina for Aluminum Wiring Boards
Himendra Jha, Tatsuya Kikuchi, Masatoshi Sakairi, Hideaki Takahashi
ACS APPLIED MATERIALS & INTERFACES, 2, 3, 774, 777, Mar. 2010, [Peer-reviewed]
English, Scientific journal

Fabrication of Cu Micro-rods with Co-axial Dual Capillary Solution Flow Type Droplet Cell and Electrodeposition with the Cell
Masatoshi Sakairi, Yoshihito Goto, Koji Fushimi, Tatsuya Kikuchi, Hideaki Takahashi
ELECTROCHEMISTRY, 78, 2, 118, 121, Feb. 2010, [Peer-reviewed]
English, Scientific journal

Model Cut-edge Formed on Zinc Coated Steels by Laser Machining and Its Corrosion Behavior　　　　　　　　　　　　　　　
Masatoshi Sakairi, Akihiro Kageyama, Tatsuya Kikuchi
Corrosion Science and Technology, 9, 29, 33, 2010, [Peer-reviewed]
English, Scientific journal

Formation of Model Scratch on Pre-painted Coated Steel by Laser Machining and Its Wer/Dry Corrosion Behavior
Masatoshi Sakairi, Miki Uchida, Tatsuya Kikuchi
Zairyo-to-Kankyo, 59, 10, 379, 381, Japan Society of Corrosion Engineering, 2010, [Peer-reviewed]
English, Scientific journal

Influence of Wettability on Corrosion Resistance of Anodized Aluminum in NaCl Solution
Zheng Meng, Jha Himendra, Masatoshi Sakairi, Tatsuya Kikuchi
Zairyo-to-Kankyo, 59, 9, 335, 337, 腐食防食協会, 2010, [Peer-reviewed]
English, Scientific journal

Effect of cations on corrosion behavior of aluminum alloy in model tap water
Kyohei Otani, Masatoshi Sakairi, Tatsuya Kikuchi, Akira Kaneko
Zairyo to Kankyo/ Corrosion Engineering, 59, 9, 330, 331, Japan Society of Corrosion Engineering, 2010, [Peer-reviewed]
English, Scientific journal

Development of a Low Solution Resistance Type Solution Flow Droplet Cell and Investigation of Its Electrochemical Performance
Masatoshi Sakairi, Takuya Murata, Tatsuya Kikuchi, Koji Fushimi
ISIJ INTERNATIONAL, 50, 10, 1466, 1470, 2010, [Peer-reviewed]
English, Scientific journal

Platinum Nanaflowers on Scratched Silicon by Galvanic Displacement for an Effective SALDI Substrate
Hideya Kawasaki, Teruyuki Yao, Takashi Suganuma, Kouji Okumura, Yuichi Iwaki, Tetsu Yonezawa, Tatsuya Kikuchi, Ryuichi Arakawa
CHEMISTRY-A EUROPEAN JOURNAL, 16, 35, 10832, 10843, 2010, [Peer-reviewed]
English, Scientific journal

Formation of artificial micro-pits on Al alloy with PRM and the localized corrosion behavior of the formed pits　　　　　　　　　　　　　　　
K. Yanada, M. Sakairi, T. Kikuchi, Y. Oya, Y. Kojima
Surface and Interface Analysis, 42, 4, 189, 193, 2010, [Peer-reviewed]
English, Scientific journal

導電性高分子を用いた再利用可能なアルミニウム製印刷板の試作　　　　　　　　　　　　　　　
菊地竜也, 島口寛子, 上田幹人, 坂入正敏, 米澤徹, 高橋英明
表面技術, 61, 9, 652, 657, 2010, [Peer-reviewed]
Japanese, Scientific journal

Growth of porous type anodic oxide films at micro-areas on aluminum exposed by laser irradiation
Tatsuya Kikuchi, Masatoshi Sakairi, Hideaki Takahashi
ELECTROCHIMICA ACTA, 54, 27, 7018, 7024, Nov. 2009, [Peer-reviewed]
English, Scientific journal

Palladium nanoparticle seeded electroless metallization of Al/Al2O3 surfaces
Himendra Jha, Tatsuya Kikuchi, Masatoshi Sakairi, Hideaki Takahashi
MATERIALS LETTERS, 63, 16, 1451, 1454, Jun. 2009, [Peer-reviewed]
English, Scientific journal

Micro- and Nano-Technologies Based on Anodizing of Aluminum – Combination of Laser Irradiation with Electrochemical Process　　　　　　　　　　　　　　　
Hideaki Takahashi, Masatoshi Sakairi, Tatsuya Kikuchi
Electrochemistry, 2009, [Invited]
English, Scientific journal

アノード酸化とマイクロ・テクノロジー　　　　　　　　　　　　　　　
高橋英明, 坂入正敏, 菊地竜也, Jha Himendra
表面技術, 60, 143, 150, 2009, [Invited]
Japanese, Scientific journal

溶液フロー型液滴セルを用いる局部電気化学　　　　　　　　　　　　　　　
坂入正敏, 村田拓哉, 菊地竜也, 伏見公志
防錆管理, 53, 361, 366, 2009, [Invited]
Japanese, Scientific journal

Metallization of Oxide / Hydroxide Film of Aluminum: the Palladium Activation Techniques　　　　　　　　　　　　　　　
Himendra Jha, Tatsuya Kikuchi, Masatoshi Sakairi, Hideaki Takahashi
Journal of the Surface Finishing Society of Japan, 60, 3, 208, 212, 2009, [Peer-reviewed]
English, Scientific journal

低密度球の水浴中への侵入特性に及ぼす表面粗さの影響
田中正幸, 菊地竜也, 辻野良二, 井口学
実験力学, 9, 2, 140, 146, The Japanese Society for Experimental Mechanics, 2009, [Peer-reviewed]
Japanese, Scientific journal, High quality steel has recently been required in many industrial fields. One of the typical impurities contained in molten iron is sulfur. Some desulphurization processes have been developed to decrease its content down to very low level. Desulfurization chemicals such as CaO powder are introduced into a molten iron bath by mechanical agitation or by powder injection with carrier gas. In this research attention is paid on the powder injection. The chemicals are commonly poorly wetted by molten iron, and accordingly, the carrier gas attaches to the surface of each particle in the course of penetrating into the bath. The buoyancy force acting on the particle reduces the penetration distance in the bath and lowers the efficiency of the process significantly. Model experiments are carried out on the influence of the surface roughness of a sphere on the penetrating behavior of the sphere in a molten iron bath, because the surface of the desulfurization chemical particles is usually rough. The roughness is measured with a laser microscope.

ポリピロール／金の２層構造を有する３次元マイクロアクチュエーターの作製　　　　　　　　　　　　　　　
菊地竜也, 上田晋吾, 上田幹人, 坂入正敏, 高橋英明
表面技術, 60, 5, 335, 341, 2009, [Peer-reviewed]
Japanese, Scientific journal

Effect of potential, temperature, and fluoride ions on the repassivation kinetics of titanium in PBS with the photon rupture method　　　　　　　　　　　　　　　
Masatoshi Sakairi, Hiroomi Miyata, Tatsuya Kikuchi, Hideaki Takahashi
Laser Chemistry, 2009, 436065, 2009, [Peer-reviewed]
English, Scientific journal

Development of a novel microstructure fabrication method with co-axial dual capillary solution flow type droplet cells and electrochemical deposition
Masatoshi Sakairi, Fumihito Sato, Yoshihito Gotou, Koji Fushimi, Tatsuya Kikuchi, Hideaki Takahashi
ELECTROCHIMICA ACTA, 54, 2, 616, 622, Dec. 2008, [Peer-reviewed]
English, Scientific journal

Fabrication of micro-dot arrays and micro-walls of acrylic acid/melamine resin on aluminum by AFM probe processing and electrophoretic coating
S. Kurokawa, T. Kikuchi, M. Sakairi, H. Takahashi
ELECTROCHIMICA ACTA, 53, 28, 8118, 8127, Nov. 2008, [Peer-reviewed]
English, Scientific journal

カソード分極中におけるアノード酸化皮膜化成ニオブ電極への水素吸収　　　　　　　　　　　　　　　
長原和弘, 菊地竜也, 伏見公志, 坂入正敏, 高橋英明, 泉知夫
表面技術, 59, 5, 326, 332, 2008, [Peer-reviewed]
Japanese, Scientific journal

Synthesis of aluminum oxy-hydroxide nanofibers from porous anodic alumina　　　　　　　　　　　　　　　
Himendra Jha, Tatsuya Kikuchi, Masatoshi Sakairi, Hideaki Takahashi
echnology, 395603(6pp), 2008, [Peer-reviewed]
English, Scientific journal

陽極酸化したアルミニウムの異種金属接触腐食 —酸化物皮膜構造と塩化物イオン濃度の影響—
坂入正敏, 下山由起也, 長澤大介, 菊地竜也, 高橋英明
Zairyo-to-Kankyo, 57, 4, 194, 200, Japan Society of Corrosion Engineering, 2008, [Peer-reviewed]
Japanese, Scientific journal, The effect of anodic oxide film structure, barrier type and porous type on galvanic corrosion resistance of aluminum in 0.5 kmol/m³ H₃BO₃ / 0.05 kmol/m³ Na₂B₄O₇ with NaCl was examined by electrochemical random signal (electrochemical noise) analysis technique. When pitting corrosion occurs, rest potential suddenly decreases and current increases rapidly, and rest potential and current change with fluctuation during galvanic corrosion. The galvanic current change correlates closely with corrosion potential change. As the thickness of both types of anodic oxide films and decreasing of chloride ion concentration, the incubation time of pitting corrosion became longer, and incubation time of pitting corrosion of specimen formed porous type anodic oxide film is longer than that of specimen formed barrier type anodic oxide film. The inverse of incubation time increase with chloride ion concentration to the power of n, [Cl^–]ⁿ. The value of n is between 1.2 and 2.5 in both oxide films.

無電解めっきと電気めっきによるセラミックス上への厚膜白金析出　　　　　　　　　　　　　　　
菊地竜也, 渡辺健, 坂入正敏, 高橋英明, 丸子智弘
表面技術, 59, 51, 56, 2008, [Peer-reviewed]
Japanese, Scientific journal

無電解めっきとレーザー照射による有機樹脂基板上へのCuマイクロパターン形成　　　　　　　　　　　　　　　
菊地竜也, 和智悠太, 坂入正敏, 高橋英明, 飯野潔, 片山直樹
表面技術, 59, 8, 555, 561, 2008

Influence of zinc ions on initial stage of localized corrosion of Zn and Zn-Al alloy coated steels with photon rupture method
Masatoshi Sakairi, Yoshiyuki Uchida, Tatsuya Kikuchi, Hideaki Takahashi
ISIJ INTERNATIONAL, 48, 7, 988, 993, 2008, [Peer-reviewed]
English, Scientific journal

Dielectric properties of Al-Si composite oxide films formed on electropolished and DC-etched aluminum by electrophoretic sol-gel coating and anodizing
M. Sunada, H. Takahashi, T. Kikuchi, M. Sakairi, S. Hirai
JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 11, 10, 1375, 1384, Oct. 2007, [Peer-reviewed]
English, Scientific journal

Microfabrication of an anodic oxide film by anodizing laser-textured aluminium
Himendra Jha, Tatsuya Kikuchi, Masatoshi Sakairi, Hideaki Takahashi
JOURNAL OF MICROMECHANICS AND MICROENGINEERING, 17, 10, 1949, 1955, Oct. 2007, [Peer-reviewed]
English, Scientific journal

Laser micromachining of porous anodic alumina film
H. Jha, T. Kikuchi, M. Sakairi, H. Takahashi
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 88, 4, 617, 622, Sep. 2007, [Peer-reviewed]
English, Scientific journal

Nb2O5 deposition on aluminum from NbCl5-used sol and anodizing of Nb2O5-coated Al
Shun Koyama, Tatsuya Kikuchi, Masatoshi Sakairi, Hideaki Takahashi, Shinji Nagata
ELECTROCHEMISTRY, 75, 8, 573, 575, Aug. 2007, [Peer-reviewed]
English, Scientific journal

Area-selective microscale metallization on porous anodic oxide film of aluminium
Himendra Jha, Tatsuya Kikuchi, Masatoshi Sakairi, Hideaki Takahashi
ELECTROCHEMISTRY COMMUNICATIONS, 9, 7, 1596, 1601, Jul. 2007, [Peer-reviewed]
English, Scientific journal

Development of three-electrode type micro-electrochemical reactor on anodized aluminum with photon rupture and electrochemistry
Masatoshi Sakairi, Masashi Yamada, Tastuya Kikuchi, Hideaki Takahashi
ELECTROCHIMICA ACTA, 52, 21, 6268, 6274, Jun. 2007, [Peer-reviewed]
English, Scientific journal

Micro-patterning in anodic oxide film on aluminium by laser irradiation
H. Jha, T. Kikuchi, M. Sakairi, H. Takahashi
ELECTROCHIMICA ACTA, 52, 14, 4724, 4733, Apr. 2007, [Peer-reviewed]
English, Scientific journal

Fabrication of a three-dimensional micro-manipulator by laser irradiation and electrochemical techniques and the effect of electrolytes on its performance
T. Kikuchi, Y. Akiyama, A. Ueda, A. Sakairi, H. Takahashi
ELECTROCHIMICA ACTA, 52, 13, 4480, 4486, Mar. 2007, [Peer-reviewed]
English, Scientific journal

Fabrication of three-dimensional platinum microstructures with laser irradiation and electrochemical technique
T. Kikuchi, H. Takahashi, T. Maruko
ELECTROCHIMICA ACTA, 52, 7, 2352, 2358, Feb. 2007, [Peer-reviewed]
English, Scientific journal

Local deposition of polypyrrole on aluminum by anodizing, laser irradiation, and electrolytic polymerization and its application to the fabrication of micro-actuators
Y Akiyama, T Kikuchi, M Ueda, M Iida, M Sakairi, H Takahashi
ELECTROCHIMICA ACTA, 51, 23, 4834, 4840, Jun. 2006, [Peer-reviewed]
English, Scientific journal

アノード酸化を利用するマイクロ・ナノテクノロジー　　　　　　　　　　　　　　　
菊地竜也, 秋山好之, 黒川真也, 長原和宏, 坂入正敏, 高橋英明
日本材料科学会誌, 43, 136, 141, 2006, [Invited]
Japanese, Scientific journal

Formation of Al-Si Composite Oxide Films on Aluminum by Electrophoretic Sol-Gel Coating/Anodizing
H.Takahashi, M.Sunada, T.Kikuchi, M.Sakairi, S.Hirai
Passivation of Materials and Semiconductors, and Thin Oxide Layers,, 685, 690, 2006, [Peer-reviewed]
English

レーザー照射と電解エッチングを用いたアルミニウムの表面微細加工　　　　　　　　　　　　　　　
菊地竜也, 高橋英明, 丸子智弘
表面技術, 56, 7, 409, 414, 2005, [Peer-reviewed]
Japanese, Scientific journal

Fabrication of Micro-Circuit Board by Aluminum Anodizing and Laser Irradiation-Effect of Laser Irradiation Condition on Micro-Pattern Formation-:−Effect of Laser Irradiation Condition on Micro-Pattern Formation−
KIKUCHI Tatsuya, TAKAHASHI Hideaki
Jitsumu Hyomen Gijutsu, 56, 9, 528, 534, The Surface Finishing Society of Japan, 2005, [Peer-reviewed]
Japanese, Scientific journal, A prototype circuit board with micro-metal patterns was fabricated by laser irradiation and an electrochemical technique. An aluminum specimen covered with porous type oxide films was irradiated with a pulsed laser beam, using a convex lens with a focal length of 10mm. The oxide film was removed in an irregularly shaped area, using a 1.5mm diameter laser beam, while the oxide film was removed in a circle with 5μm diameter, using a 1.0mm diameter laser beam, due to an aberration of the convex lens. The diameter of the film-removed area decreased with decreasing laser power and laser irradiation time. Laser irradiation with a beam expander and a doublet lens caused the removal of the oxide film in a circle with 3μm diameter. Fine metal patterns with 4μm line width was fabricated on the epoxy resin board by successive steps of aluminum anodizing, laser irradiation, electroplating, resin attaching, and removal of the aluminum substrate and oxide film.

Fabrication of nickel micro-pattern on insulating board by anodizing/laser irradiation/electrodeposition
T Kikuchi, M Sakairi, H Takahashi, Y Abe, N Katayama
SURFACE & COATINGS TECHNOLOGY, 169, 199, 202, Jun. 2003, [Peer-reviewed]
English, Scientific journal

アノード酸化を基礎とするアルミニウム表面技術における最近の話題　　　　　　　　　　　　　　　
高橋英明, 坂入正敏, 渡辺恵司, 菊地竜也, 山田雅史
奥野トップテクノフォーカス, 28, 1, 12, 2003, [Invited]
Japanese, Scientific journal

バルブ金属アノード酸化皮膜の微細構造とマイクロ・ナノテクノロジーへの応用　　　　　　　　　　　　　　　
高橋英明, 坂入正敏, 菊地竜也, 山田雅史
表面技術, 54, 436, 441, 2003, [Invited]
Japanese, Scientific journal

Three-dimensional Microstructure Fabrication with Aluminum Anodizing, Laser Irradiation, and Electrodeposition　　　　　　　　　　　　　　　
T. Kikuchi, M. Sakairi, H. Takahashi
Journal of the Electrochemical Society, 150, 9, C567, C572, 2003, [Peer-reviewed]
English, Scientific journal

アルミニウムのアノード酸化とレーザー照射を用いた微細プリント配線板の作製 –パターン形成における酸化皮膜の厚さの影響-　　　　　　　　　　　　　　　
菊地竜也, 坂入正敏, 高橋英明, 阿部芳彦, 片山直樹
表面技術, 54, 2, 137, 144, 2003, [Peer-reviewed]
Japanese, Scientific journal

Local surface modification of aluminum by laser irradiation
T Kikuchi, SZ Chu, S Jonishi, M Sakairi, H Takahashi
ELECTROCHIMICA ACTA, 47, 1-2, 225, 234, Sep. 2001, [Peer-reviewed]
English, Scientific journal

アルミニウムのアノード酸化を利用したプリント配線板の作製　　　　　　　　　　　　　　　
高橋英明, 坂入正敏, 菊地竜也
表面科学, 22, 370, 375, 2001, [Invited]
Japanese, Scientific journal

Fabrication of Micropores and Grooves on Aluminum by Laser Irradiation and Electrochemical Technique　　　　　　　　　　　　　　　
T. Kikuchi, M. Sakairi, H. Takahashi, Y. Abe, N. Katayama
Journal of the Electrochemical Society, 148, 11, C740, C745, 2001, [Peer-reviewed]
English, Scientific journal

Alアノード酸化とレーザー照射を利用した金属微細構造の作製 –新LIGAプロセスを目指して-　　　　　　　　　　　　　　　
菊地竜也, 諸松竹, 加藤善大, 坂入正敏, 高橋英明
表面技術, 50, 697, 704, 1999, [Invited]
Japanese, Scientific journal

アノード酸化を基礎とする新規なアルミニウム表面改質・加工技術 –機能性表面の創成を目指して-　　　　　　　　　　　　　　　
高橋英明, 坂入正敏, 諸松竹, 渡辺恵司, 菊地竜也, 三輪浩二, 加藤善大, 上西早苗
軽金属, 50, 544, 551, 1999, [Invited]
Japanese, Scientific journal

アルミニウムのアノード酸化／レーザー照射／電気めっきを用いた微細回路板の作製　　　　　　　　　　　　　　　
菊地竜也, 坂入正敏, 高橋英明, 阿部芳彦, 片山直樹
表面技術, 50, 9, 829, 835, 1999, [Peer-reviewed]
Japanese, Scientific journal

Other Activities and Achievements

北海道大学大学院工学研究院材料科学部門エコプロセス工学研究室研究室紹介　　　　　　　　　　　　　　　
菊地竜也, アルミプロダクツ, 36, 2, 14, 15, 2023, [Invited], [Lead author, Corresponding author]
Japanese, Introduction other

会員提案シンポジウム「材料電気化学」のご案内テーマ材料電気化学が拓く金属・半導体の技術革新　　　　　　　　　　　　　　　
菊地竜也, 電気化学, 90, 286, 2022, [Invited], [Lead author, Corresponding author]
Japanese, Others

アノード酸化の未来を創る　　　　　　　　　　　　　　　
菊地竜也, 軽金属, 71, 323, 324, 2021, [Invited], [Lead author, Corresponding author]
Japanese, Introduction scientific journal

研究者紹介一風変わったアノード酸化　　　　　　　　　　　　　　　
菊地竜也, 表面技術, 71, 355, 2020, [Invited]
Japanese, Others

AST2014国際会議報告 –さらに新しいアノード酸化の世界-　　　　　　　　　　　　　　　
菊地竜也, 表面技術, 66, 209, 211, 2015, [Invited]
Japanese, Meeting report

2014年電気化学会秋季大会報告　　　　　　　　　　　　　　　
大谷文章, 菊地竜也, Electrochemistry, 83, 122, 125, 2015, [Invited]
Japanese, Meeting report

アノード酸化皮膜のマイクロ・ナノテクノロジー　　　　　　　　　　　　　　　
菊地竜也, 坂入正敏, 高橋英明, 軽金属, 61, 373, 2011, [Invited]
Japanese, Introduction scientific journal

A Novel Method for Microstructure Fabrication with Anodic Oxide Films
KIKUCHI Tatsuya, SAKAIRI Masatoshi, YONEZAWA Tetsu, JHA Himendra, TAKAHASHI Hideaki, Jitsumu Hyomen Gijutsu, 61, 2, 207, 207, 2010, [Invited]
The Surface Finishing Society of Japan, Japanese, Introduction scientific journal

AST2008国際会議報告 –アノード酸化の新しい世界-　　　　　　　　　　　　　　　
菊地竜也, 表面技術, 60, 156, 158, 2009, [Invited]
Japanese, Meeting report

212th ECS Meeting
KIKUCHI Tatsuya, Zairyo-to-Kankyo, 57, 4, 186, 187, 2008, [Invited]
Japanese, Meeting report

2008年3学協会北海道支部研究発表報告　　　　　　　　　　　　　　　
菊地竜也, Zairyo-to-Kankyo, 57, 229, 2008, [Invited]
Japanese, Meeting report

分岐点　　　　　　　　　　　　　　　
菊地竜也, まてりあ, 43, 251, 2004, [Invited]
Japanese, Others

Micro-Technology on Aluminum Surface with Anodizing, Laser Irradiation, and Electrochemical Technique
KIKUCHI Tatsuya, SAKAIRI Masatoshi, TAKAHASHI Hideaki, Jitsumu Hyomen Gijutsu, 52, 1, 84, 85, 2001
The Surface Finishing Society of Japan, Japanese, Introduction scientific journal

Books and other publications

アルミニウム合金の基礎と成形技術
菊地竜也, アルミニウムの表面処理
コロナ社, 07 Nov. 2024, 4339046914, 210, [Contributor]

超撥水・超撥油・滑液性表面の技術（第２巻）　　　　　　　　　　　　　　　
菊地竜也, 小野田文哉, 近藤龍之介, 中島大希, 鈴木亮輔, 夏井俊悟, 陽極酸化による滑落性制御型超撥水・超撥油アルミニウム表面の創製
サイエンス＆テクノロジー, Mar. 2021, [Contributor]

撥水・撥油・親水性材料の開発動向　　　　　　　　　　　　　　　
菊地竜也, 中島大希, 近藤龍之介, 鈴木亮輔, 夏井俊悟, 陽極酸化によるアルミニウム表面のナノ構造制御と超親水性・超撥水性の発現
シーエムシー出版, Mar. 2021, [Contributor]

脱石油に向けたCO2資源化技術 ―化学・生物プロセスを中心にー　　　　　　　　　　　　　　　
鈴木亮輔, 坂口紀史, 菊地竜也, 夏井俊悟, CO2還元によるカーボンナノチューブの生成
シーエムシー出版, Jul. 2020, [Contributor]

Extractive Metallurgy of Titanium　　　　　　　　　　　　　　　
Ryosuke O. Suzuki, Shungo Natsui, Tatsuya Kikuchi, OS process: calciothermic reduction of TiO2 via CaO electrolysis in molten CaCl2
Elsevier, 2019, 287-314, [Contributor]

ナノファイバーの製造・加工技術とその応用事例　　　　　　　　　　　　　　　
菊地竜也, 中島大希, アノード酸化によるアルミナナノファイバーの作製
技術情報協会, 2019, [Contributor]

超親水・親油性表面の技術　　　　　　　　　　　　　　　
菊地竜也, 中島大希, アノード酸化アルミナナノファイバーによるアルミニウム表面の高速超親水化技術
サイエンス＆テクノロジー, 2018, [Contributor]

キャパシタ便覧　　　　　　　　　　　　　　　
高橋英明, 坂入正敏, 菊地竜也, 小山瞬, 複合酸化物皮膜の形成によるアルミニウム電解コンデンサーの大容量化
丸善, 2009, [Joint work]

Progress in Corrosion Science and Engineering, Modern Aspects of Electrochemistry　　　　　　　　　　　　　　　
Hideaki Takahashi, Masatoshi Sakairi, Tatsuya Kikuchi, Anodic Oxide Films on Aluminum: Their Significance for Corrosion Protection and Micro- and Nano-Technologies-
Springer, 2009, [Joint work]

Lectures, oral presentations, etc.

アノード酸化の不思議と魅力　　　　　　　　　　　　　　　
菊地竜也
電気化学会東海支部 2024年度ヤングエレクトロケミスト研究会・光電気化学研究会, 03 Dec. 2024, Japanese, Invited oral presentation
[Invited]

アノード酸化によるアルミニウム表面のナノ構造制御の科学と工学　　　　　　　　　　　　　　　
菊地竜也
日本金属学会・日本鉄鋼協会関西支部鉄鋼プロセス研究会・材料化学研究会令和６年度第１回特別講演会・見学会, 19 Nov. 2024, Japanese, Invited oral presentation
[Invited]

アノード酸化の基礎　　　　　　　　　　　　　　　
菊地竜也
表面技術協会「研究/技術者のための表面処理基礎講座」, 18 Nov. 2024, Japanese, Invited oral presentation
[Invited]

アルミニウム製水滴発電機の創製ー雨水の接触帯電を利用した発電デバイスー　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第39回蒲郡コンファレンス, 14 Nov. 2024, Japanese, Invited oral presentation
[Invited]

Fabrication of Anodic Porous Alumina Via Anodizing Aluminum in Novel Electrolyte Solutions　　　　　　　　　　　　　　　
Tatsuya Kikuchi, Mana Iwai, Daiki Nakajima
PRiME2024, 246th The Electrochemical Society Meeting, 08 Oct. 2024, English, Keynote oral presentation
[Invited]

アルミニウムのアノード酸化の基礎２　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第115回例会, 24 Sep. 2024, Japanese, Invited oral presentation
[Invited]

アルミニウムのアノード酸化の基礎１　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第115回例会, 24 Sep. 2024, Japanese, Invited oral presentation
[Invited]

アルミニウムの陽極酸化によるナノ構造構築と機能の発現　　　　　　　　　　　　　　　
菊地竜也
表面技術協会第149回講演大会, 05 Mar. 2024, Japanese, Invited oral presentation
[Invited]

加熱クラック生成挙動に及ぼすアルマイトのナノ構造の影響　　　　　　　　　　　　　　　
中島大希, 布村順司, 菊地竜也
SURTECH2024 表面技術協会ARS第113回例会, 31 Jan. 2024, Japanese, Invited oral presentation
[Invited]

アルミニウムの陽極酸化によるナノ構造構築と機能の発現　　　　　　　　　　　　　　　
菊地竜也
表面技術協会冬季セミナー「研究/技術者のための表面処理基礎講座」, 20 Dec. 2023, Japanese, Invited oral presentation
[Invited]

Fabrication of slippery and sticky superhydrophobic aluminum via anodizing in pyrophosphoric acid　　　　　　　　　　　　　　　
Tatsuya Kikuchi, Fumiya Onoda, Junnosuke Yasuda, Mana Iwai
International Conference on Surface Engineering (ISCE2023) & Regional INTERFINISH 2023, 23 Nov. 2023, English, Invited oral presentation
[Invited]

塩基性電解質を用いたアルミニウムのアノード酸化　　　　　　　　　　　　　　　
岩井愛, 菊地竜也
表面技術協会ARS第38回姫路コンファレンス, 07 Nov. 2023, Japanese, Invited oral presentation
[Invited]

ハニカムナノ構造をもつ酸化アルミニウム皮膜の作製と三次元複雑構造への応用展開　　　　　　　　　　　　　　　
岩井愛, 菊地竜也
第9回北大・部局横断シンポジウム, 11 Oct. 2023, Japanese, Invited oral presentation
[Invited]

アルミニウムのアノード酸化の基礎2　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第112回例会, 25 Sep. 2023, Japanese, Invited oral presentation
[Invited]

アルミニウムのアノード酸化の基礎1　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第112回例会, 25 Sep. 2023, Japanese, Invited oral presentation
[Invited]

新規な電解質を用いたアルミニウムのアノード酸化によるナノテクノロジー　　　　　　　　　　　　　　　
菊地竜也
電気化学会第90回大会, 27 Mar. 2023, Japanese, Invited oral presentation
[Invited]

塩化ナトリウム／エチレングリコール溶液を用いたポーラスアルミナの高速電解剥離　　　　　　　　　　　　　　　
菊地竜也, 宮本和哉, 岩井愛
表面技術協会ARS第37回三河コンファレンス, 08 Nov. 2022, Japanese, Invited oral presentation
[Invited]

アルミニウムのアノード酸化の基礎2　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第109回例会, 16 Sep. 2022, Japanese, Public discourse
[Invited]

アルミニウムのアノード酸化の基礎1　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第109回例会, 16 Sep. 2022, Japanese, Public discourse
[Invited]

アルミニウムの陽極酸化による自己規則化ナノ構造の作製と応用　　　　　　　　　　　　　　　
菊地竜也
電気化学会電解科学技術委員会第116回委員会, 16 Jun. 2022, Japanese, Invited oral presentation
[Invited]

新規な電解質を用いた陽極酸化によるポーラスアルミナのナノ構造制御　　　　　　　　　　　　　　　
菊地竜也, 岩井愛
日本金属学会2022年春期第170回講演大会, 16 Mar. 2022, Keynote oral presentation
[Invited]

アルミニウムのアノード酸化の基礎２　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第107回例会, 07 Dec. 2021, Japanese, Public discourse
[Invited]

アルミニウムのアノード酸化の基礎１　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第107回例会, 07 Dec. 2021, Japanese, Public discourse
[Invited]

Fabrication of self-ordered porous alumina by anodizing aluminum in alkaline sodium tetraborate solution　　　　　　　　　　　　　　　
Mana Iwai, Tatsuya Kikuchi
Hokkaido University-Seoul National University The 10th Joint Symposium on Materials Science and Engineering, 03 Dec. 2021, English, Invited oral presentation
[Invited]

Fabrication of sticky and slippery superhydrophobic aluminum surfaces by electrochemical anodizing　　　　　　　　　　　　　　　
Tatsuya Kikuchi, Fumiya Onoda, Ryunosuke Kondo, Daiki Nakajima
Hokkaido University-Seoul National University The 10th Joint Symposium on Materials Science and Engineering, 03 Dec. 2021, English, Invited oral presentation
[Invited]

アノード酸化入門　　　　　　　　　　　　　　　
菊地竜也
表面技術協会2020年夏季セミナー「表面処理入門講座」, 28 Aug. 2020, Public discourse
[Invited]

海外におけるアノード酸化研究の潮流とナノ構造体作製技術　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第36回富山コンファレンス, 31 Oct. 2019, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

Fabrication of Self-Ordered Porous alumina by Etidronic Acid Anodizing　　　　　　　　　　　　　　　
Tatsuya Kikuchi, Mana Iwai, Yusuke Suzuki, Shungo Natsui, Ryosuke O. Suzuki
3rd International Symposium on Anodizing Science and Technology (AST2019), 02 Jun. 2019, English, Invited oral presentation
[Invited], [International presentation]

アルミニウムのアノード酸化の基礎　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第102回例会ーチュートリアル：アノード酸化の基礎ー, 10 May 2019, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

ピロリン酸アノード酸化による高速超親水・滑落性制御型超撥水アルミニウム材料の創製　　　　　　　　　　　　　　　
菊地竜也, 中島大希, 夏井俊悟, 鈴木亮輔
表面技術協会第139回講演大会, 19 Mar. 2019, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

アルミニウムアノード酸化皮膜の基礎　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第99回例会ー平成30年度チュートリアル：アノード酸化の基礎ー, 15 Jun. 2018, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

エチドロン酸アノード酸化による高電圧・硬質・発光皮膜の作製　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第34回松島コンファレンス, 30 Oct. 2017, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

新規な電解質を用いた多孔質皮膜の生成挙動と特性　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第97回例会, 25 Sep. 2017, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

新規な電解質を用いたアノード酸化によるアルミニウム表面の機能化　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第33回熱海コンファレンス, 28 Oct. 2016, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

アルミニウムのアノード酸化と機能化　　　　　　　　　　　　　　　
菊地竜也
軽金属学会新エネルギー向け表面処理研究部会講演会, 28 Oct. 2015, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

ポーラスアルミナの生成挙動におよぼす電解質化学種の影響　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第31回足柄コンファレンス, 20 Nov. 2014, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

カルシウム還元を用いた電解コンデンサ用マイクロポーラス合金の作製　　　　　　　　　　　　　　　
菊地竜也, 吉田雅純, 夏井俊悟, 幅崎浩樹, 鈴木亮輔
2014年電気化学秋季大会, 28 Sep. 2014, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

新しいナノポーラスアルミナを求めて　　　　　　　　　　　　　　　
菊地竜也
第30回ARS弘前コンファレンス, 08 Nov. 2013, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

ポーラス型アノード酸化皮膜のマイクロ・ナノテクノロジー　　　　　　　　　　　　　　　
菊地竜也
資源・素材2013 平成25年度資源・素材関係学協会合同秋季大会, 03 Sep. 2013, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

カルシウム無電解還元法によるコンデンサ用Ti合金微粒子の作製　　　　　　　　　　　　　　　
菊地竜也, 吉田雅純, 鈴木亮輔
第29回ARS伊豆長岡コンファレンス, 02 Nov. 2012, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

レーザー照射と電気化学的手法を融合した新規な微細構造体の創製　　　　　　　　　　　　　　　
菊地竜也
2010年北海道夏期セミナー, 30 Jul. 2010, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

高温アルコール中におけるアルミニウム合金の腐食 —腐食挙動におよぼす合金組成、溶液組成およびアノード酸化皮膜の影響—　　　　　　　　　　　　　　　
菊地竜也
表面技術協会第119回講演大会, 16 Mar. 2009, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

レーザー微細加工と貴金属めっき —異なる２つの表面技術—　　　　　　　　　　　　　　　
菊地竜也
表面技術協会北海道支部特別講演会, 07 Dec. 2006, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

アルミニウムのマイクロパターニング　　　　　　　　　　　　　　　
菊地竜也
表面技術協会ARS第23回有明コンファレンス, 02 Nov. 2006, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

レーザー微細加工法と電気化学による貴金属三次元構造体の作製　　　　　　　　　　　　　　　
菊地竜也
第22回ライラックセミナー・第11回若手研究者交流会, 18 Jun. 2005, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

アノード酸化皮膜のレーザー加工を用いた三次元微細構造体作製法の開発　　　　　　　　　　　　　　　
菊地竜也
第６回２１世紀の境界領域研究を考えるシンポジウム, 26 Jun. 2004, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

Courses

マテリアル工学と私たちの生活　　　　　　　　　　　　　　　
北海道大学

情報学I　　　　　　　　　　　　　　　
北海道大学

Nano-process Reaction Engineering　　　　　　　　　　　　　　　
Faculty of Engineerring, Hokkaido University

ナノプロセス反応工学特論　　　　　　　　　　　　　　　
北海道大学大学院

材料工学実験I　　　　　　　　　　　　　　　
北海道大学

工学的創成実験　　　　　　　　　　　　　　　
北海道大学

創造工学　　　　　　　　　　　　　　　
北海道大学

自然科学実験（物理）　　　　　　　　　　　　　　　
北海道大学

プレゼンテーション　　　　　　　　　　　　　　　
北海道大学

材料科学基礎英語　　　　　　　　　　　　　　　
北海道大学

新材料・新素材の開発と私たちの社会　　　　　　　　　　　　　　　
北海道大学

材料工学演習 I　　　　　　　　　　　　　　　
北海道大学

相平衡論　　　　　　　　　　　　　　　
北海道大学

身近な環境と化学実験　　　　　　　　　　　　　　　
放送大学

材料工学演習IV　　　　　　　　　　　　　　　
北海道大学

相変態論　　　　　　　　　　　　　　　
北海道大学

Affiliated academic society

2020
American Association for the Advancement of Science

The Electrochemical Society

International Society of Electrochemistry

軽金属学会

表面技術協会ARS（金属のアノード酸化皮膜の機能化部会）

日本金属学会

電気化学会

表面技術協会

Research Themes

不動態ナノ酸化物の最適設計に基づくAlと樹脂の高速・高耐食性・高強度創発接合　　　　　　　　　　　　　　　
科学研究費補助金（基盤研究（B））
Apr. 2025 - Mar. 2028
菊地竜也
日本学術振興会, Principal investigator

ハイブリッド不動態による超寿命マグネシウム材料の創製　　　　　　　　　　　　　　　
科学研究費補助金（挑戦的研究（萌芽））
Jun. 2024 - Mar. 2026
菊地竜也
日本学術振興会, Principal investigator

塩基を用いた高耐食性アルマイトの創製と超寿命アルミニウム材料への応用　　　　　　　　　　　　　　　
科学研究費補助金（基盤研究（B））
Apr. 2022 - Mar. 2025
菊地竜也
日本学術振興会, Principal investigator

アルミニウム製水滴発電機の創製　　　　　　　　　　　　　　　
科学研究費補助金（挑戦的研究（萌芽））
Jun. 2022 - Mar. 2024
菊地竜也
日本学術振興会, Principal investigator

表面ナノ構造の最適設計に基づく超高耐食性アルミニウム材料の創製　　　　　　　　　　　　　　　
科学研究費補助金（基盤研究（B））
Apr. 2019 - Mar. 2022
菊地竜也
日本学術振興会, Principal investigator, Competitive research funding

高速超親水・超撥水金属材料の創製と熱エネルギー交換デバイスへの応用　　　　　　　　　　　　　　　
科学研究費補助金（基盤研究（B））
Apr. 2016 - Mar. 2019
菊地竜也
日本学術振興会, Principal investigator, Competitive research funding

光学顕微鏡の回折限界を超える高規則配列ナノレンズアレイの創製　　　　　　　　　　　　　　　
科学研究費補助金（挑戦的萌芽研究）
Apr. 2016 - Mar. 2018
菊地竜也
日本学術振興会, Principal investigator, Competitive research funding

チタン系電解コンデンサ用マイクロ・ナノ合金微粒子の創成　　　　　　　　　　　　　　　
科学研究費補助金（挑戦的萌芽研究）
Apr. 2013 - Mar. 2015
菊地竜也
日本学術振興会, Principal investigator, Competitive research funding

高規則化ナノレンズアレイの創製と光学的応用　　　　　　　　　　　　　　　
科学研究費補助金（若手研究（A））
Apr. 2012 - Mar. 2015
菊地竜也
日本学術振興会, Principal investigator, Competitive research funding

自己組織化・高密度ナノポーラス金属の創成　　　　　　　　　　　　　　　
科学研究費補助金（挑戦的萌芽研究）
Apr. 2011 - Mar. 2013
菊地竜也
日本学術振興会, Principal investigator, Competitive research funding

環境対応型マイクロアクチュエーターの試作　　　　　　　　　　　　　　　
科学研究費補助金（若手研究（B））
Apr. 2008 - Mar. 2010
菊地竜也
日本学術振興会, Principal investigator, Competitive research funding

レーザー照射/電気化学によるアルミニウムの表面微細加工　　　　　　　　　　　　　　　
科学研究費補助金（特別研究員奨励費）
Apr. 2000 - Mar. 2003
菊地竜也
日本学術振興会, Principal investigator

Industrial Property Rights

樹脂接合用アルミニウム部材、接合体、これらの製造方法及び樹脂被覆部材　　　　　　　　　　　　　　　
Patent right, 中島大希、菊地竜也、謝軒琳
特願2025-088556, 2025

アルミニウム材の製造方法　　　　　　　　　　　　　　　
Patent right, 岩井愛, 菊地竜也, 中島大希
特願2023-117061, 2023

構造色部材及びその製造方法　　　　　　　　　　　　　　　
Patent right, 菊地竜也, 芦澤来虹, 中島大希
特願2023-103649, 2023

表面処理アルミニウム材、その製造方法及び半導体処理装置用部材　　　　　　　　　　　　　　　
Patent right, 中島大希, 菊地竜也
特願2023-063321, 2023

アルミニウム部材及びその製造方法　　　　　　　　　　　　　　　
Patent right, 菊地竜也, 佐藤美羽, 布村順司, 大谷良行
特願2020-118492, 2020

チタンの製造方法　　　　　　　　　　　　　　　
Patent right, 鈴木亮輔, 野口宏海, 菊地竜也, 堀川松秀, 金子拓実
特願2020-193670, 2020

配線基板の製造方法　　　　　　　　　　　　　　　
Patent right
特願2009-155401
特開2011-014611
特許5446514
特願2009-155401

めっきによる三次元微細構造体の成形法　　　　　　　　　　　　　　　
Patent right
特願2002-256335
特開2004-091878
特許4257676
特開2004-091878

Social Contribution Activities

北海道大／アルマイトの安全な「超高速剥離法」開発　　　　　　　　　　　　　　　
19 Aug. 2022
Others
Paper
鉄鋼新聞

北海道大学、アルマイトの安全な超高速剥離法を開発　　　　　　　　　　　　　　　
28 Jul. 2022
Others
Paper
日刊軽金属

北大、ナノ細孔アルマイト薄膜を剥離製造ナノテク材の工業化加速　　　　　　　　　　　　　　　
28 Jul. 2022
Others
Paper
日刊工業新聞

アルミニウムのアノード酸化 -基礎と研究紹介-　　　　　　　　　　　　　　　
12 Dec. 2018
Lecturer
Lecture
（株）UACJ
講演会

輝け！高専生！大学・大学院進学へのご招待　　　　　　　　　　　　　　　
12 Nov. 2018
Lecturer
Lecture
函館工業高等専門学校
物質環境工学科講演会

アルミニウムのアノード酸化の革新を目指して　　　　　　　　　　　　　　　
02 Aug. 2018
Lecturer
Lecture
日本軽金属（株）
講演会

表面ナノ構造に基づく新規機能性アルミニウム材料の開発　　　　　　　　　　　　　　　
27 Jun. 2018
Lecturer
Lecture
軽金属奨学会
軽金属の表面処理と新しい展開講演会

アルミニウムのアノード酸化による機能性材料の創製　　　　　　　　　　　　　　　
20 Apr. 2018
Lecturer
Lecture
名古屋大学未来社会創造機構材料電気化学講座
講演会

ナノ構造を制御した機能性アルミニウム材料 —誰でも簡単に、安価に、新しい特性を—　　　　　　　　　　　　　　　
29 Sep. 2017
Informant
Seminar
北海道大学工学部
工学系イノベーションフォーラム

ナノ構造を制御した機能性アルミニウム　　　　　　　　　　　　　　　
27 Jul. 2017
Lecturer
Seminar
北海道経済連合会産業振興委員会
講演会

アルマイトのナノテクノロジー　　　　　　　　　　　　　　　
31 Aug. 2015
Lecturer
Seminar
文部科学省ナノテクノロジープラットフォーム事業微細構造解析プラットフォーム
2015年度第1回ワークショップ

特別講評講師　　　　　　　　　　　　　　　
15 Nov. 2014 - 16 Nov. 2014
Lecturer
Lecture
道内国立高専専攻科
平成26年度研究発表・交流会

マイクロ・ナノテクノロジーの世界－小さなものを形づくる技術－　　　　　　　　　　　　　　　
11 Sep. 2010
Lecturer
北海道大学・稚内高等学校
工学セミナー２０１０

レーザーパターニングによる微細金属構造体形成法の開発　　　　　　　　　　　　　　　
02 Mar. 2009
Panelist, Lecturer
Lecture
北海道大学・北海道
産学官連携で地域資源を活かす

北大、道工試、微細金属の3次元構造体作製法を開発　　　　　　　　　　　　　　　
02 May 2003
Others
Paper
日本工業新聞

北大など、アルミ表面に3次元微細構造体を加工する新技術　　　　　　　　　　　　　　　
15 May 2002
Others
Paper
日本工業新聞

Kikuchi Tatsuya

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