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Wataru OHNISHI

Associate professor
Department of Electrical Engineering and Information Systems
Graduate School of Engineering
The University of Tokyo
Room #123C1, 12th floor, Faculty of Engineering Bldg.2,
7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan

Email: ohnishi (at) ctl.t.u-tokyo.ac.jp

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Contents

About

Wataru Ohnishi received the B.E., M.S., and Ph.D. degrees from The University of Tokyo, Japan, in 2013, 2015, and 2018, respectively. Presently, he is an assistant professor with the Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo. He held a visiting position at the Eindhoven University of Technology. His research interests include high-precision motion control and optimization. He is a senior member of IEEJ and a member of IEEE.

Job

Education

Research Stay

Society

Research

Toward Next Generation Mechatronics and Control

My team and I aim to achieve control performance that pushes the physical limits by innovations in control theory driven by the requirements of cutting-edge industrial applications. We pursue both performance and robustness through integrated optimization of the entire mechatronic system to be controlled (electric circuit, electromagnetism, power electronics, plasma, mechanics, thermal, fluid, etc.) and controller design, as well as system identification and learning control. Through domestic and international industry-academia collaboration, we propose and implement both control theory and control system design methods for world-class control targets such as semiconductor manufacturing equipment, transport systems, and railroad systems to support a sustainable and prosperous society.

Continuing Semiconductor Scaling with Precision Control

We promote the further miniaturization and 3D fabrication of integrated circuits and flat panel displays through high-speed, high-precision control. We perform system identification of multi-input/output systems, data-driven control, learning control, and integrated design of control systems for control targets. Through joint research with equipment manufacturers, we apply control technology to the world’s most advanced semiconductor manufacturing.

New Circuit Breaker Enables High-Voltage DC Power Transmission

We have proposed a compact and inexpensive circuit breaker capable of interrupting large DC currents by combining fuses, semiconductors, and linear motors. We are conducting basic principle research to achieve higher performance and applying the technology to DC electric railroads and DC power grids. We have obtained an international patent, published an international journal article, and been selected for the NEDO project.

Advanced Motion Control for Accurate and Energy-Saving Automatic Train Operation

We are conducting research to realize a safe, accurate, and sustainable railroad system by utilizing communication based train control (CBTC), GPS, etc. We will develop a scaled roller rig in a HILS environment and conduct research on re-adhesion control, learning control, quantization compensation, and dead-time compensation.

Publications

Award

  1. The University of Tokyo Excellent Young Researcher, The University of Tokyo, 2023/11/16.
  2. IEEJ Industry Applications Society Quick Paper Review Promotion Award, IEEJ Industry Applications Society, 2023/08/17.
  3. Outstanding paper award, IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization, 2023/03/26.
  4. Abstract Submission Award, Precision Motion Systems & Control 2022, 2022/09/14.
  5. IEEJ Industry Applications Society Quick Paper Review Promotion Award, IEEJ Industry Applications Society, 2022/08/17.
  6. IEEJ Excellent Presentation Award, 電気学会, 2022/04/01.
  7. 開閉保護研究発表賞, 電気学会開閉保護技術委員会, 2022/01/24.
  8. 産業計測制御技術委員会優秀論文発表賞, 電気学会産業応用部門産業計測制御技術委員会, 2022/01/05.
  9. Best Paper Award - ISGT Asia Australia 2021, 10th IEEE PES International Innovative Smart Grid Technologies Conference – Asia, 2021/12/11.
  10. Recognition award for commitment to organizing attractive track, the 30th International Symposium on Industrial Electronics, 2021/06/12.
  11. IEEJ Industry Applications Society Distinguished Transaction Paper Award, IEEJ Industry Applications Society, 2020/08/25.
  12. Outstanding paper award, IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization, 2019/03/05.
  13. NF Foundation R&D Encouragement Award with High Appreciation, 2018, NF Foundation, 2018/11/16.
  14. NF Foundation R&D Encouragement Award, 2018, NF Foundation, 2018/11/16.
  15. IEEJ Industry Applications Society Excellent Presentation Award, IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization, 2018/08/28.
  16. 部門優秀論文発表賞, 電気学会産業応用部門, 2018/03/31.
  17. 工学系研究科長賞（研究）, 東京大学大学院工学系研究科, 2018/03/22.
  18. 平成29年度優秀博士論文賞, 東京大学大学院工学系研究科電気系工学専攻, 2018/03/22.
  19. Outstanding paper award, IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization, 2018/03/07.
  20. メカトロニクス制御技術委員会優秀論文発表賞, 電気学会産業応用部門メカトロニクス制御技術委員会, 2018/01/09.
  21. The best session presentation during the 42nd Annual Conference of the IEEE Industrial society, IEEE-IECON2016, 2016/10/27.
  22. 部門優秀論文発表賞, 電気学会産業応用部門, 2016/03/31.
  23. メカトロニクス制御技術委員会優秀論文発表賞, 電気学会産業応用部門メカトロニクス制御技術委員会, 2016/01/08.
  24. Excellent Achievement Award In Advanced Energy, 東京大学大学院新領域創成科学研究科先端エネルギー工学専攻, 2015/03/24.
  25. Dean’s Award for Outstanding Achievement (Master Course), 東京大学大学院新領域創成科学研究科, 2015/03/18.
  26. Best presentation in session TT3-1: High Precision Control, IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization, 2015/03/09.
  27. メカトロニクス制御技術委員会優秀論文発表賞, 電気学会産業応用部門メカトロニクス制御技術委員会, 2015/01/07.
  28. IEEJ Excellent Presentation Award, 電気学会, 2014/09/01.
  29. 平成26年度原島博学術奨励賞, 電気電子情報学術振興財団, 2014/05/28.
  30. IEEJ Industry Applications Society Excellent Presentation Award, 電気学会産業応用部門, 2014/03/31.
  31. メカトロニクス制御技術委員会優秀論文発表賞, 電気学会産業応用部門メカトロニクス制御技術委員会, 2014/01/10.
  32. IEEJ Tokyo Branch Student Encouragement Award, 電気学会東京支部, 2013/03/31.
  33. 平成24年度学科長特別賞, 東京大学工学部電子情報工学科・電気電子工学科, 2013/03/26.

Funding

  1. Japan Society for the Promotion of Science, NWO-JSPS JOINT SEMINAR, Research Network on Learning in Machines: high-performance sub-nanoscale production, 2023-2023.
  2. Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research(B), 非因果的制御入力を生成する反復学習制御による高速高精度位置決めに関する研究, 2023-2028.
  3. Fluid Power Technology Promotion Foundation, Research Grant, High-speed high-precision mass flow-rate control based on precise valve position control, 2023-2025.
  4. The Precise Measurement Technology Promotion Foundation, 調査・研究事業, 周波数応答データ駆動による反復学習制御と精密位置決めへの展開, 2023-2024.
  5. Nagamori Foundation, 研究助成 2022, Fuse-Semiconductor Hybrid DC Circuit Breaker Incorporating High-Acceleration Linear Motor, 2022-2023.
  6. NSK Foundation for the Advancement of Mechatronics, 研究助成, 鉄道運動制御におけるラピッドプロトタイピング環境の構築～むだ時間，量子化の制約下での先端運動制御～, 2022-2024.
  7. The Telecommunication Advancement Foundation, 研究調査助成, 機械学習とシステム同定の橋渡しによる繰り返し学習制御の新展開（延長）, 2022-2023.
  8. Japan Power Academy, 特別推進研究, 高圧直流電気鉄道システムの実現を可能とするハイブリッド直流遮断器の開発, 2022-2024.
  9. NEDO, 未踏チャレンジ２０５０, コンパクトで安価かつ汎用的な限流遮断器の開発, 2021-2023.
  10. Nagamori Foundation, 研究助成 2021, Fuse-Semiconductor Hybrid DC Circuit Breaker Incorporating High-Acceleration Linear Motor, 2021-2022.
  11. MathWorks, MathWorks Academic Support Program, Rapid Prototyping for Motion Control with MATLAB & Simulink for Remote Lectures, 2021-2024.
  12. Research Foundation for the Electrotechnology of Chubu, 令和２年度研究助成, 鉄道用革新的直流遮断器のための超高加速度リニアモータの開発, 2021-2023.
  13. Japan Society for the Promotion of Science, Grant-in Aid for Early-Career Scientists, システム同定と機械学習の連携による繰り返し学習制御の位置決め性能と汎化性能の両立, 2021-2024.
  14. The Telecommunications Advancement Foundation, 研究調査助成, 機械学習とシステム同定の橋渡しによる繰り返し学習制御の新展開, 2021-2022.
  15. Nagamori Foundation, 研究助成 2020, Fuse-Semiconductor Hybrid DC Circuit Breaker Incorporating High-Acceleration Linear Motor, 2020-2021.
  16. Mathworks, MathWorks Academic Support Program, Motion Control with MATLAB, 2020-2021.
  17. The Telecommunications Advancement Foundation, 研究調査助成, IoT時代の多センサ多アクチュエータを活用した次世代モーションコントロール, 2019-2020.
  18. Japan Power Academy, Japan Power Academy, 高圧直流電気鉄道システムの実現に向けたヒューズハイブリッド型超高速直流遮断器の開発, 2019-2019.
  19. Ono Charitable Trust for Acoustics, Ono Charitable Trust for Acoustics, 空気圧アクチュエータのためのアクティブ共鳴相殺制御による大型ステージの精密位置決め制御法, 2019-2020.
  20. Fluid Power Technology Promotion Foundation, Research Grant, High-precision pressure control by high-speed flow rate feedback and nonlinear inversion of pneumatic valve dynamics: Aiming to realize a high-precision pneumatic actuator comparable to a linear motor positioning accuracy, 2019-2020.
  21. The Precise Measurement Technology Promotion Foundation, 精密測定技術向上のための国際交流等研究促進事業, Optimal State Trajectory Regeneration for Nonminimum Phase Systems: No Preactuation Approach (IECON2018), 2018-2018.
  22. Japan Society for the Promotion of Science, Grant-in-Aid for Research Activity Start-up, 次世代精密位置決め装置のための複数入出力を用いたデータ駆動形制御器自動設計法, 2018-2020.
  23. Research Foundation for the Electrotechnology of Chubu, 国際交流援助海外渡航費, Trajectory Tracking Control for Pneumatic Actuated Scan Stage with Time Delay Compensation (IECON2016), 2016-2016.
  24. The Telecommunication Advancement Foundation, 海外渡航旅費援助, Multirate Feedforward Control with State Trajectory Generation based on Time Axis Reversal for Plant with Continuous Time Unstable Zeros, 2016-2016.
  25. Japan Society for the Promotion of Science, Grant-in-Aid for JSPS Fellows, 次世代半導体・液晶製造装置のための機構と制御の統合設計, 2015-2018.
  26. The NEC C&C Foundation, Grants for Researchers Attending International Conferences, Design and Control of 6-DOF High-Precision Scan Stage with Gravity Canceller (ACC2014), 2014-2014.
  27. TEPCO Memorial Federation, Support for International Technological Interaction, Proposal of Attitude Control for High-Precision Stage by Compensating Nonlinearity and Coupling of Euler’s Equation and Rotational Kinematics (IECON2013), 2013-2013.

Patent

  1. 特願2022-044719: 大西亘, 三好 正太, 古関 隆章: 昇圧コンバータ
  2. 特願2020-152424: 大西亘,三好正太,古関隆章,佐藤基: 昇圧コンバータ
  3. 特願2020-211842: 古関隆章, 坂井桂祐, 大西亘,葛西光希,森田隼史,田中和広,徳原克俊: 無線式列車制御システム
  4. 国際特許出願PCT/JP2020/034978: 稲田優貴, 山納康, 前山光明, 全俊豪, 大西亘:電流遮断装置及び電流遮断方法
  5. 特願2019-168601: 稲田優貴, 山納康, 前山光明, 全俊豪, 大西亘: ヒューズと半導体を併用した限流機能付き電力用遮断器
  6. 特開2018-054847: 藤本博志, 居村岳広, 佐藤基, 矢崎雄馬, 大西亘, 西村拓朗, 坂田晃一, 原篤史, 長沢昌弥, 陳照祥, 横山和弘: 移動体装置，露光装置，フラットパネルディスプレイの製造方法，およびデバイス製造方法