Executives
Introduction of the board of directors, corporate auditors, and officers.
Directors

Representative Director,
President and Chief Executive Officer
Noriaki Taneichi
Representative Director,
President and Chief Executive Officer
Noriaki Taneichi
1986 | Joined the Company |
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2009 | General Manager, Marketing Development Div. |
2011 | General Manager, New Business Development Div. |
2015 | Officer; Deputy Dept. Manager, New Business Development Dept. |
2017 | Director; Officer; Dept. Manager, New Business Development Dept. |
2019 | Representative Director, President and Chief Executive Officer (to the present) |

Director
Harutoshi Sato
Director
Harutoshi Sato
1984 | Joined the Company |
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2004 | General Manager, Quality Assurance Div |
2007 | General Manager, Advanced Material Development Div. 2 |
2008 | General Manager, Advanced Material Development Div. 1 |
2009 | Officer; Deputy Dept. Manager, Research and Development Dept. and General Manager, Advanced Material Development Div. 3 |
2011 | Officer; Deputy Dept. Manager, Research and Development Dept. and General Manager, Advanced Material Development Div. 1 |
2012 | Director; Officer; Dept. Manager, Research and Development Dept. |
2017 | Director; Executive Officer; Dept. Manager, Research and Development Dept |
2019 | Director; Senior Executive Officer; Dept. Manager, Research and Development Dept. |
2022 | Director of the Company (to the present) |

Director, Officer
Dept. Manager, New Business Development Dept
Yusuke Narumi
Director, Officer
Dept. Manager, New Business Development Dept
Yusuke Narumi
1988 | Joined the Company |
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2012 | Div. Manager, Market Development Div |
2019 | Div. Manager, Panel Material Marketing Div |
2019 | Div. Manager, Imaging Material Marketing Div |
2020 | Officer; Dept. Manager, New Business Development Dept. |
2021 | Director; Officer; Dept. Manager, New Business Development Dept. (to the present) |

Director, Senior Executive Officer
Dept. Manager, Marketing Dept. and Dept.
Manager, Research and Development Dept.
Kosuke Doi
Director, Senior Executive Officer
Dept. Manager, Marketing Dept. and Dept.
Manager, Research and Development Dept.
Kosuke Doi
1986 | Joined the Company |
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2009 | General Manager, Advanced Material Development Div. 1 |
2011 | President and Director of TOKYO OHKA KOGYO AMERICA, INC |
2016 | Officer (President and Director of TOKYO OHKA KOGYO AMERICA, INC.) |
2019 | Officer; Dept. Manager, New Business Development Dept |
2020 | Executive Officer; Dept. Manager, Marketing Dept. |
2022 | Director, Executive Officer; Dept. Manager, Marketing Dept. and Dept. Manager, Research and Development Dept. |
2023 | Director, Senior Executive Officer; Dept. Manager, Marketing Dept.and Dept. Manager, Research and Development Dept. (to the present) |

Director, Officer
Dept. Manager, Manufacturing Dept.
Hirotaka Yamamoto
Director, Officer
Dept. Manager, Manufacturing Dept.
Hirotaka Yamamoto
1992 | Joined the Company |
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2013 | Plant General Manager of TOK ADVANCED MATERIALS CO., LTD. |
2019 | Deputy Department Manager, Corporate Planning Department of the Company |
2020 | Officer; Department Manager, Corporate Planning Department |
2023 | Director, Officer; Dept. Manager, Manufacturing Dept. (to the present) |

Outside Director
Hiroshi Kurimoto
Outside Director
Hiroshi Kurimoto
1970 | Joined OILES CORPORATION (“OILES”) |
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1999 | Director of OILES |
2003 | Director; Managing Operating Officer of OILES |
2006 | Representative Director, President and Chief Operating Officer of OILES |
2011 | Representative Director and Chairman of OILES |
2014 | Director (Outside Director) of the Company (to the present) Director and Senior Advisor of OILES |
2015 | Senior Advisor of OILES |
2016 | Executive Advisor of OILES |
Directors Who Are Audit and Supervisory Committee Members

Director
Standing Audit and Supervisory Committee Member
Nobuo Tokutake
Director
Standing Audit and Supervisory Committee Member
Nobuo Tokutake
1984 | Joined the Company |
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2003 | Chairman and President of TOK TAIWAN CO., LTD. |
2007 | General Manager, Quality Assurance Div |
2009 | Senior General Manager, Production Control Div. and General Manager, Quality Assurance Div |
2013 | Officer; Deputy Dept. Manager, Manufacturing Dept. |
2015 | Director; Officer; Dept. Manager, Manufacturing Dept |
2020 | Standing Audit and Supervisory Board Member |
2023 | Director (Standing Audit and Supervisory Committee Member)(to the present) |

Outside Director
Audit and Supervisory Committee Member
(Representative of Sekiguchi Noriko CPA Office
Audit & Supervisory Board Member of Oji Holdings Corporation (Independent Outside Audit & Supervisory Board Member)
Corporate Auditor (Outside Corporate Auditor) of Ryoden Corporation
Auditor of JICA)
Noriko Sekiguchi
Outside Director
Audit and Supervisory Committee Member
(Representative of Sekiguchi Noriko CPA Office
Audit & Supervisory Board Member of Oji Holdings Corporation (Independent Outside Audit & Supervisory Board Member)
Corporate Auditor (Outside Corporate Auditor) of Ryoden Corporation
Auditor of JICA)
Noriko Sekiguchi
1994 | Registered as certified public accountant |
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2002 | Reregistered as certified public accountant |
2010 | Representative of Sekiguchi CPA Office (present Sekiguchi Noriko CPA Office) (to the present) |
2011 | Contract Monitoring Committee Member of Japan International Cooperation Agency (“JICA”) |
2011 | External Assessment Committee Member of JICA |
2012 | Registered as certified tax accountant |
2015 | Director (Outside Director) of the Company |
2019 | Executive Officer of Chifure Holdings |
2021 | Independent Outside Audit & Supervisory Board Member of Oji Holdings Corporation (to the present) |
2022 | Auditor (Outside Auditor), Ryoden Corporation (to the present) Auditor, Japan International Corporation Agency (to the present) |
2023 | Outside Director (Audit and Supervisory Committee Member) )(to the present) |

Outside Director
Audit and Supervisory Committee Member
Kazuo Ichiyanagi
Outside Director
Audit and Supervisory Committee Member
Kazuo Ichiyanagi
1977 | Joined Teikoku Tsushin Kogyo Co., Ltd |
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2005 | 5 Executive Officer in charge of Development Dept.; General Manager, Development Dept. of Teikoku Tsushin Kogyo Co., Ltd. |
2008 | Executive Officer supervising Development Technology and in charge of Development Dept. of Teikoku Tsushin Kogyo Co., Ltd. |
2008 | Executive Officer supervising Development Technology of Teikoku Tsushin Kogyo Co., Ltd. |
2009 | Director; Executive Officer supervising Development Technology of Teikoku Tsushin Kogyo Co., Ltd. |
2009 | Director; Executive Officer supervising Development Division of Teikoku Tsushin Kogyo Co., Ltd. |
2010 | President of Teikoku Tsushin Kogyo Co., Ltd. |
2019 | Director and Advisor of Teikoku Tsushin Kogyo Co., Ltd. |
2020 | Director (Outside Director) of the Company |
2023 | Outside Director (Audit and Supervisory Committee Member) )(to the present) |

Outside Director
Audit and Supervisory Committee Member
Director (Outside Director) of AeroEdge Co., Ltd.
Hisashi Ando
Outside Director
Audit and Supervisory Committee Member
Director (Outside Director) of AeroEdge Co., Ltd.
Hisashi Ando
1979 | Joined Sony Chemicals Corporation (currently Dexerials Corporation) |
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2006 | Corporate Executive; Kanuma Plant Manager of Sony Chemical & Information Device Corporation (currently Dexerials Corporation) |
2007 | Executive Officer; Kanuma Plant Manager of Sony Chemical & Information Device Corporation |
2010 | Director; Kanuma Plant Manager of Sony Chemical & Information Device Corporation |
2012 | Director and Executive Officer; Senior General Manager, Research & Development Division; Kanuma Plant Manager of Dexerials Corporation |
2014 | Director and Senior Executive Officer; Senior General Manager, Research & Development Division; Procurement, New Business Planning & Promotion of Dexerials Corporation |
2016 | Director and Managing Executive Officer; Officer in charge of Manufacturing & Technology; Corporate R&D Division Head of Dexerials Corporation |
2016 | 6 Representative Director and Senior Managing Executive Officer; Corporate R&D Division Head of Dexerials Corporation |
2019 | Representative Director and Senior Managing Executive Officer of Dexerials Corporation |
2019 | Director and Managing Executive Officer; Lieutenant President of Dexerials Corporation |
2020 | Director and Managing Executive Officer; Lieutenant President of Dexerials Corporation; President of Dexerials America Corporation |
2020 | Technical Advisor of Dexerials Corporation |
2022 | Director (Outside Director) of the Company (to the present) |
2022 | Director (Outside Director) of AeroEdge Co., Ltd.(to the present) |
2023 |
Outside Director (Audit and Supervisory Committee Member) )(to the present) |
Officers
Executive Officer
Yuichi Murakami
President, TOK Advanced Materials Co., Ltd.
Officer
Okikuni Takase
Dept. Manager, Accounting and Finance Dept.
Officer
Shoji Otaka
Dept. Manager, Corporate Planning Dept.
Officer
Yuichi Honma
Department Manager, General Affairs Dept.
Officer
Tsukasa Honkawa
President,
TOK ENGINEERING CO., LTD
Officer
Naoki Watanabe
Chairman and President,
TOK CHINA CO., LTD.
Officer
Kazuyuki Shiotani
President, TOKYO OHKA KOGYO
AMERICA, INC.
Officer
Atsushi Sawano
Chairman and President,
TOK TAIWAN CO., LTD.
Officer
Gitae Kim
Vice President, TOK Advanced Materials Co., Ltd.
Officer
Katsumi Ohmori
Deputy Dept. Manager, Research and
Development Dept.
Officer
Naoki Tatsuno
Deputy Dept. Manager,
Marketing Dept.