三菱化工機株式会社

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Executives

Board of Directors

  • Photographs of position holders

    Representative Director / President and CEO

    Toshikazu Tanaka

    April 1985
    Joined the Company
    April 2015
    Executive Officer, Division Director, Administrative Division and General Manager, General Affairs and Personnel Department
    June 2016
    Director and Division Director, Administrative Division
    June 2021
    Director and President (Current position)

    * Representative Director, President and CEO effective June 2025, in accordance with the transition to the new executive structure

  • Photographs of position holders

    Director / Managing Executive Officer

    Shiro Yajima

    April 1986
    Joined the Company
    April 2019
    Executive Officer and Division Director, Machinery Business Division
    June 2022
    Director in charge of Technology Development & Production Division and Machinery Business Division
    June 2025
    Director, Managing Executive Officer in charge of Technology Development & Production Division and Machinery Business Division (to present)
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    Director / Managing Executive Officer

    Takashi Inoue

    April 1991
    Joined the Company
    June 2022
    Executive Officer and General Manager, Hydrogen & Energy Project Center
    April 2025
    Executive Officer and Division Director, Environmental & Hydrogen & Energy Business Division, and General Manager, Green Transformation Business Office
    June 2025
    Director, Managing Executive Officer in charge of Sales Division, Plant Project Business Division, and Environment & Hydrogen & Energy Division, and General Manager, Green Transformation Business Office (to present)
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    Director / Managing Executive Officer

    Tomonari Miyamoto

    April 1996
    Joined the Japan Association for Employment of Persons with Disabilities (currently, the Japan Organization for Employment of the Elderly, Persons with Disabilities and Job Seekers)
    January 2008
    Joined the Company
    April 2024
    Executive Officer, Division Director, Planning & Administrative Division and General Manager, General Affairs and Personnel Department
    June 2025
    Director, Managing Executive Officer in charge of Sustainability and Planning & Administrative Division (to present)
  • Photographs of position holders

    External Director

    Masaaki Kusunoki

    April 1985
    Joined Mitsubishi Heavy Industries, Ltd.
    April 2020
    Executive Officer and Deputy Domain Head of Plant and Infrastructure Domain at Mitsubishi Heavy Industries
    June 2020
    Director of the Company (Current position)
    April 2024
    Fellow Advisor at Mitsubishi Heavy Industries (Current position)
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    External Director

    Mika Nakayama

    August 1984
    Joined Japan Synthetic Rubber Co., Ltd. (Current JSR Corporation)
    June 2020
    Director, Senior Officer, General Manager of Sustainability Promotion Dept., JSR Corporation
    June 2022
    Outside Director, Audit & Supervisory Committee Member, Astellas Pharma Inc. (Current position)
    June 2024
    Director of the Company (Current position)
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    External Director

    Mariko Kawaguchi

    April 1986
    Joined Daiwa Securities Co. Ltd.
    April 2020
    Specially Appointed Professor of Graduate School of Social Design Studies, Rikkyo University (Current position)
    April 2023
    ESG Advisor of Fuji Oil Holdings Inc. (Current position)
    June 2024
    Director of the Company (Current position)
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    Director, Audit and Supervisory Committee Member (Full-time)

    Junichi Masuda

    April 1987
    Joined The Mitsubishi Bank, Ltd. (currently MUFG Bank, Ltd.)
    June 2016
    Managing Director, General Manager, Investment Group I of Mitsubishi UFJ Capital Co., Ltd.
    June 2018
    Full-time Auditor of JALCARD. Co., Ltd.
    June 2025
    Director, Audit and Supervisory Committee Member (Full-time) (to present)
  • Photographs of position holders

    Director, Audit and Supervisory Committee Member (Full-time)

    Shinichi Sakemi

    April 1991
    Joined the Company
    April 2011
    Head of Environmental Technology Div.
    April 2023
    Executive Officer and Head of Technology Development and Production Div.
    June 2024
    Director (Audit and Supervisory Committee Member (Full-time)) (Current position)
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    External Director, Audit and Supervisory Committee Member

    Tomohiro Kikkawa

    April 1993
    Registered as an attorney, joined Kita and Kimura Law Office
    April 1998
    Founded Kikkawa Law Office
    June 2015
    Auditor of the Company
    June 2016
    Director of the Company (Audit and Supervisory Committee Member) (Current position)
  • Photographs of position holders

    External Director, Audit and Supervisory Committee Member

    Junko Kamei

    Sep. 1986
    Joined Showa Ota & Co. (currently: Ernst & Young ShinNihon LLC)
    March 1990
    Registered as a certified public accountant in Japan
    June 2022
    Director of the Company (Audit and Supervisory Committee Member) (Current position)
    Sep. 2024
    Comptroller, National University Corporation, the University of Tokyo (Current position)

Executive officers

Name Post
Yasuhide Hayashi Managing Executive Officer (in charge of Innovation Promotion)
Takaharu Negi Division Director, Planning and Administrative Div.
Akiyoshi Yamazaki Division Director, Technology Development and Production Div.
Hiroyuki Kishida Division Director, Sales Div.
Satoki Nakashima Division Director, Plant Project Business Div.
Hideki Miyajima Division Director, Environmental and Hydrogen and Energy Business Div.
Koji Nagane Division Director, Machinery Business Div.
Deputy Division Director, Head of Technology Development and Production Div.

（As of June 27, 2025）

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