About DAICELDirectors & Senior Management

Directors

(As of June 20, 2025)

Chairperson of the Board
Yoshimi Ogawa

Date of birth: January 8, 1960

  • Member of the Nomination and Compensation Committee
April 1983 Joined Daicel Corporation
April 2002 Head of Business Process Innovation, Daicel Corporation
June 2006 Executive Officer, Daicel Corporation
Vice President of Aerospace & Defense Systems/Safety Systems Company, Daicel Corporation
June 2009 Head of Production Technology, Daicel Corporation
June 2011 Director, Daicel Corporation
June 2013 Managing Executive Officer, Daicel Corporation
June 2017 Senior Managing Executive Officer, Daicel Corporation
June 2019 President, Daicel Corporation
President and CEO, Daicel Corporation
April 2021 Executive Consultant, Polyplastics Co., Ltd. (incumbent)
April 2024 Responsible for Institute of Human-oriented Management (incumbent)
April 2025 Chairperson of the Board, Daicel Corporation (incumbent)
President
Yasuhiro Sakaki

Date of birth: March 17, 1962

  • Member of the Nomination and Compensation Committee
April 1984 Joined Daicel Corporation
June 2012 President of Organic Chemical Products Company, Daicel Corporation
June 2014 Executive Officer, Daicel Corporation
June 2016 President of Aerospace & Defense Systems/Safety Systems Company, Daicel Corporation
June 2017 Managing Executive Officer, Daicel Corporation
June 2019 Senior Managing Executive Officer, Daicel Corporation
June 2020 Director, Daicel Corporation
April 2025 President, Daicel Corporation (incumbent)
President and CEO, Daicel Corporation (incumbent)
Representative Director
Kotaro Sugimoto

Date of birth: October 10, 1960

  • Member of the Nomination and Compensation Committee
April 1984 Joined Daicel Corporation
June 2011 Head of Raw Material Purchasing Center, Daicel Corporation
June 2014 Executive Officer, Daicel Corporation
Representative Director and President of Daicel Logistics Service Co., Ltd.
June 2017 Managing Executive Officer, Daicel Corporation
June 2019 Representative Director, Daicel Corporation (incumbent)
June 2020 Senior Managing Executive Officer, Daicel Corporation (incumbent)
Director
Toshio Shiwaku

Date of birth: February 20, 1963

April 1987 Joined Polyplastics Co., Ltd.
April 2007 Chief of Research and Development Center of Polyplastics Co., Ltd.
March 2011 Executive Officer of Polyplastics Co., Ltd.
June 2014 Director of Polyplastics Co., Ltd.
June 2015 Managing Executive Officer of Polyplastics Co., Ltd.
June 2016 Representative Director of Polyplastics Co., Ltd.
June 2017 Representative Director and President of Polyplastics Co., Ltd.
April 2021 Senior Managing Executive Officer, Daicel Corporation
(incumbent)
June 2024 Director, Daicel Corporation (incumbent)
Director
Naotaka Kawaguchi

Date of birth: December 25, 1961

April 1986 Joined Daicel Corporation
June 2006 Head of Production Innovation Center, Production Technology, Daicel Corporation
June 2015 Executive Officer, Daicel Corporation
June 2020 Managing Executive Officer, Daicel Corporation
April 2023 Senior Managing Executive Officer, Daicel Corporation (incumbent)
June 2024 Director, Daicel Corporation (incumbent)
Outside Director
Teisuke Kitayama

Date of birth: October 26, 1946

  • Member of the Nomination and Compensation Committee
  • Significant concurrent positions
    Honorary Advisor of Sumitomo Mitsui Banking Corporation
June 2005 Director President (Representative Director) of Sumitomo Mitsui Financial Group, Inc.
Chairman of the Board (Representative Director) of Sumitomo Mitsui Banking Corporation
April 2017 Director of Sumitomo Mitsui Banking Corporation
June 2017 Advisor of Sumitomo Mitsui Banking Corporation
June 2018 Director, Daicel Corporation (incumbent)
October 2018 Honorary Advisor of Sumitomo Mitsui Banking Corporation (incumbent)
Outside Director
Toshio Asano

Date of birth: December 4, 1952

  • Chairperson of the Nomination and Compensation Committee
  • Significant concurrent positions
    Special Advisor of Asahi Kasei Corp.
    Outside Director of MEDIPAL HOLDINGS CORPORATION
    Outside Director of Tokyo Century Corporation
April 2010 President & Representative Director, Presidential Executive Officer of Asahi Kasei Pharma Corp.
April 2014 Presidential Executive Officer of Asahi Kasei Corp.
June 2014 President & Representative Director, Presidential Executive Officer of Asahi Kasei Corp.
April 2016 Director and Standing Advisor of Asahi Kasei Corp.
June 2016 Standing Advisor of Asahi Kasei Corp.
June 2019 Director, Daicel Corporation (incumbent)
June 2022 Advisor of Asahi Kasei Corp.
June 2024 Special Advisor of Asahi Kasei Corp. (incumbent)
Outside Director
Yuriya Komatsu

Date of birth: October 18, 1962

  • Member of the Nomination and Compensation Committee
  • Significant concurrent positions
    Outside Director of NTN Corporation
    Outside Director (Audit and Supervisory Committee Member) of DREAM INCUBATOR INC.
April 1988 Assistant Portfolio Manager of Credit Suisse Trust and Banking Co., Ltd.
April 1990 Senior Analyst of SPARX Asset Management Co., Ltd. (currently SPARX Group Co., Ltd.)
May 1996 Senior Research Analyst of The Dreyfus Corporation
December 1999 Vice President of Fiduciary Trust Company International
September 2000 Partner of INTELLASSET, INC.
November 2004 Partner of Worldeye Capital Inc.
June 2006 Vice President of Olympus Capital Holdings Asia
July 2010 Managing Director of Daiwa Quantum Capital Limited
October 2014 Member of the Board of KADOKAWA DWANGO Corporation (currently KADOKAWA Corporation) Member of the Board of DWANGO Co., Ltd.
July 2020 Outside Director of NTN Corporation (incumbent)
June 2021 Outside Director (Audit and Supervisory Committee Member) of DREAM INCUBATOR INC. (incumbent)
June 2022 Director, Daicel Corporation (incumbent)
January 2023 Director of IA Partners Inc.
Outside Director
Mari Okajima

Date of birth: August 6, 1961

  • Member of the Nomination and Compensation Committee
  • Significant concurrent positions
    Professor of J.F. Oberlin University
April 2012 Vice President of Cabin Safety Promotion Department of Japan Airlines Co., Ltd.
April 2013 Vice President of Cabin Attendants Department, Haneda of Japan Airlines Co., Ltd.
November 2014 Deputy General Manager of Cabin Attendants and Vice President of The 1st Cabin Attendants Department, Haneda of Japan Airlines Co., Ltd.
June 2015 Deputy General Manager of Cabin Attendants Division and Vice President of Cabin Attendants General Affairs of Japan Airlines Co., Ltd.
September 2021 Professor of J.F. Oberlin University (incumbent)
June 2023 Director, Daicel Corporation (incumbent)
Outside Director
Keita Nishiyama

Date of birth: January 11, 1963

  • Member of the Nomination and Compensation Committee
  • Significant concurrent positions
    Representative Director of Nishiyama Research Institute, Inc.
    Outside Director of Panasonic Holdings Corporation
April 1985 Joined the Ministry of International Trade and Industry (currently Ministry of Economy, Trade and Industry)
June 2011 Director-General of the Secretariat for the TEPCO Management and Finance Investigation Task Force of Cabinet Secretariat
June 2012 Senior Executive Managing Officer of Innovation Network Corporation of Japan (currently Japan Investment Corporation)
July 2012 Deputy Director-General for Economic and Social Policy of Ministry of Economy, Trade and Industry
June 2013 Deputy Director-General of Economic and Industrial Policy Bureau of Ministry of Economy, Trade and Industry
July 2014 Deputy General Manager of TEPCO-NDF Liaison Office, Nuclear Damage Compensation and Decommissioning Facilitation Corporation (NDF)
Executive Officer of Tokyo Electric Power Company (Assistant to Chairman, Co-Superintendent of Management & Planning Division)
June 2015 Director and Executive Officer of Tokyo Electric Power Company (Assistant to Chairman, Co-Superintendent of Management & Planning Division)
July 2018 Director-General of Commerce and Information Policy Bureau of Ministry of Economy, Trade and Industry
July 2020 Retired from Ministry of Economy, Trade and Industry
November 2020 Representative Director of Nishiyama Research Institute, Inc. (incumbent)
June 2023 Director, Daicel Corporation (incumbent)
Outside Director
Seiji Kito

Date of birth: November 3, 1962

  • Member of the Nomination and Compensation Committee
  • Significant concurrent positions
    Chief Director of Tokyo Opera City Cultural Foundation
    Chief Director of Nissay Culture Foundation
    Outside Director of The Hyakujushi Bank, Ltd. (Audit and Supervisory Committee Members)
March 2022 Representative Director and Executive Vice President of Nippon Life Insurance Company
March 2023 Director of Nippon Life Insurance Company
June 2023 Chief DirectorofTokyo Opera City Cultural Foundation (incumbent)
Chief DirectorofNissay Culture Foundation (incumbent)
June 2025 Director, Daicel Corporation (incumbent)

Audit & Supervisory Board Members

(As of the end of June 2025)

Mikio Yagi Standing Audit & Supervisory Board Member
Junichi Mizuo Outside Audit & Supervisory Board Member
Representative Director and Chairperson of the Japan Compliance & Governance Institute
Honorary Professor of Surugadai University
Hideo Makuta Outside Audit & Supervisory Board Member
Registered as attorney (Dai-ichi Tokyo Bar Association), Lawyer of Ginza chuo Law Office
Outside Audit & Supervisory Board Member of Fujitsu Ltd.
Hisae Kitayama Outside Audit & Supervisory Board Member
Representative of Kitayama Public Accounting Office, Certified Public Accountant
Outside Director of Tsubakimoto Chain Co.

Executive Officers

(As of May 13, 2025)

President and CEO
Yasuhiro Sakaki Responsible for Corporate Planning & Strategy Office
Responsible for Healthcare SBU
Senior Managing Executive Officers
Kotaro Sugimoto General Manager, Corporate Support Headquarters
Responsible for Corporate Compliance Program Division
Responsible for Corporate Sustainability
Responsible for Digital Strategy Center
Responsible for Material SBU
Toshio Shiwaku General Manager, Assessment Headquarters
General Manager, R&D Headquarters
Responsible for Intellectual Property Center
Naotaka Kawaguchi General Manager, Production Management Headquarters
Responsible for Engineering Center
Responsible for Safety and Quality Assurance Headquarters
Responsible for Safety SBU
Takashi Miyamoto President and CEO, Polyplastics Co., Ltd.
General Manager, Performance Materials Headquarters
Managing Executive Officers
Yoichi Nemoto Division Manager, Group Governance and Financial Coordination
Deputy General Manager, Corporate Support Headquarters
Responsible for SCM Headquarters
Seiji Sakano Head of Life Sciences SBU
Hiroshi Iwase Head of Smart SBU
President, Daicel Beyond Ltd.
Kazuya Kurosawa Division Manager, Chemical BU, Material SBU
Head of Material SBU
President, Toyama Filter Tow Co., Ltd.
Executive Officers
Hitoshi Hayashi Division Manager, Assessment Promotion, Assessment Headquarters
Deputy General Manager, Assessment Headquarters
Seiji Yamakado President, Daicel Miraizu Ltd.
Chairperson, Shanghai Daicel Polymers,Ltd.
Nobuhiko Ikeda Plant General Manager, Arai Plant
President, Daicel Arai Chemical Ltd.
Takaharu Takikawa Head of Engineering Center
Masahiko Hirokawa Division Manager, Investor Relations & Corporate Communications, Corporate Support Headquarters
Deputy General Manager, Corporate Support Headquarters
Head of Corporate Sustainability
Ryohei Yamada Division Manager, Medical Device Division, Life Sciences SBU
Deputy Head of Life Sciences SBU
Eiichi Ryobo Head of Safety SBU
Chairperson, Daicel Safety Systems (Jiangsu)Co., Ltd.
Chairperson, Daicel Safety Technologies (Jiangsu) Co., Ltd.
Chairperson, Daicel Safety Systems Americas, Inc.
Yosuke Omae Plant General Manager, Harima Plant
Division Manager of Global Technical Control, Safety SBU
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