Board Directors

Board Directors

Masahiro Koezuka Representative Director, Chairman

Masahiro Koezuka

Representative Director,
Chairman
April 1974
Joined the Ministry of International Trade and Industry (Currently the Ministry of Economy, Trade and Industry)
June 2010
Director, Senior Managing Executive Officer of Fujitsu Limited
May 2013
Director, Senior Executive Vice Chairman of Fujitsu Limited
September 2014
Representative Director of Socionext Inc. (Preparation Company)
February 2015
Director of Socionext Inc.
April 2016
Representative Director and Chairman of Fujitsu Research Institute
April 2018
Representative Director, Chairman and CEO of Socionext Inc.
March 2022
Representative Director, Chairman, President and CEO of Socionext Inc.
June 2025
Representative Director, Chairman and CEO of Socionext Inc.(Current Position)
Hisato Yoshida Representative Director, President

Hisato Yoshida

Representative Director,
President
April 1988
Joined Matsushita Electric Industrial Co., Ltd. (Currently Panasonic Holdings Corporation)
April 2010
Group Manager of Fourth Development Group, First Business Division, System LSI Division of Panasonic Corporation (Currently Panasonic Holdings Corporation)
March 2015
Director, Development Department IV of IoT System Business Unit, Business Group I of Socionext Inc.
January 2021
Vice Head of Global Development Group and SNDP Promotion Group of Socionext Inc.
April 2022
Corporate Executive Vice President and Head of Global Development Group of Socionext Inc.
June 2023
Director, Corporate Executive Vice President and Head of Global Development Group of Socionext Inc.
April 2024
Director and Deputy President in charge of Development Group of Socionext Inc.
April 2025
Director, COO and Global Leading Group (GLG) Co-Lead of Socionext Inc.
June 2025
Representative Director, President and COO, Global Leading Group(GLG) Co-Lead of Socionext Inc.(Current Position)
Yutaka Yoneyama Director

Yutaka Yoneyama

Director
April 1985
Joined Matsushita Electric Industrial Co., Ltd. (Currently Panasonic Holdings Corporation)
April 2013
Accounting Group Manager of System LSI Division of Panasonic Corporation(Currently Panasonic Holdings Corporation)
March 2015
Deputy General Manager, Corporate Finance Division of Socionext Inc.
July 2020
General Manager, Corporate Finance Division and Corporate Affairs & HR of Socionext Inc.
March 2022
Director Senior Vice President of Corporate Finance Division, Corporate Affairs & HR, and Intellectual Property & Legal of Socionext Inc.
April 2022
Director, Corporate Executive Vice President in charge of Finance and Business Administration of Socionext Inc.
April 2024
Director, Deputy President in charge of Finance & Business Administration and CFO of Socionext Inc.
October 2024
Director, Deputy President in charge of Business Administration and CFO of Socionext Inc.
April 2025
Director, EVP and CFO of Socionext Inc. (Current Position)
Masatoshi Suzuki Lead Independent Outside Director

Masatoshi Suzuki

Lead Independent
Outside Director
April 1975
Joined Nippon Telegraph and Telephone Public Corporation (Currently Nippon Telegraph and Telephone Corporation)
June 2008
Representative Director, Senior Executive Vice President, NTT DoCoMo, Inc. (Currently NTT DOCOMO, INC.)
June 2012
Representative Director, Senior Executive Vice President, MIRAIT Holdings Corporation (Currently MIRAIT ONE Corporation)
October 2012
Representative Director, President, MIRAIT Holdings Corporation (currently MIRAIT ONE Corporation)
June 2020
Director and Advisor, MIRAIT Holdings Corporation (Currently MIRAIT ONE Corporation)
June 2021
Outside Director of Socionext Inc.
March 2022
Chairman of Nomination and Remuneration Committee of Socionext Inc.(Current Position)
October 2022
Lead Independent Outside Director of Socionext Inc.(Current Position)
Sachiko Kasano Independent Outside Director

Sachiko Kasano

Independent
Outside Director
October 2001
Qualified as an attorney and joined Miyakezaka Sogo Law Office
January 2016
Established Kasumimon Sogo Law Offices (Currently SHIOMIZAKA), Attorney (Current Position)
June 2021
Outside Audit & Supervisory Board Member of Socionext Inc.
March 2022
Outside Director (Chairman of Audit & Supervisory Committee Member) of Socionext Inc.
October 2022
Independent Outside Director (Chairman of Audit & Supervisory Committee) of Socionext Inc.
June 2023
Independent Outside Director of Socionext Inc.(Current Position)
June 2023
Outside Director (Audit & Supervisory Committee Member) of Restar Holdings Corporation (Currently Restar Corporation) (Current position)
November 2023
Outside Statutory Auditor of PRAP Japan, Inc. (Current Position)
Kazuhiro Nishihata Independent Outside Director

Kazuhiro Nishihata

Independent
Outside Director
April 1981
Joined Nippon Telegraph and Telephone Public Corporation (currently Nippon Telegraph and Telephone Corporation)
June 2006
President and Representative Director of NTT EUROPE LTD.
June 2009
Senior Vice President, Head of Global Business Sector of NTT DATA(currently NTT DATA GROUP CORPORATION)
June 2015
Executive Vice President and Director of NTT DATA
June 2017
Senior Executive Vice President and Representative Director of NTT DATA
June 2018
Executive Advisor of NTT DATA
June 2020
Senior Executive Vice President and Representative Director of NTT DATA
October 2022
President and Chief Executive Officer, Representative Director of NTT DATA, Inc.
September 2024
Advisor to Socionext Inc.
June 2025
Independent Outside Director of Socionext Inc.(Current Position)
Yasuyoshi Ichikawa Independent Outside Director (Chairman of Audit & Supervisory Committee)

Yasuyoshi Ichikawa

Independent Outside Director
(Chairman of Audit &
Supervisory Committee)
October 1985
Joined Tohmatsu Awoki & Co. (Currently Deloitte Touche Tohmatsu LLC)
August 2018
Executive officer of Deloitte Touche Tohmatsu LLC (in charge of Quality Control)
December 2020
Established Yasuyoshi Ichikawa Certified Public Accountant Office, Certified Public Accountant (Current Position)
March 2022
Outside Director (Audit & Supervisory Committee Member) of Socionext Inc.
October 2022
Independent Outside Director (Audit & Supervisory Committee Member) of Socionext Inc.
June 2023
Independent Outside Director (Chairman of Audit & Supervisory Committee) of Socionext Inc. (Current Position)
June 2023
Outside Audit & Supervisory Board Member of Dai Nippon Printing Co., Ltd. (Current Position)
Morimasa Ikemoto Independent Outside Director (Full-time Audit & Supervisory Committee Member)

Morimasa Ikemoto

Independent Outside Director
(Full-time Audit & Supervisory
Committee Member)
April 1979
Joined Fujitsu Limited
June 2012
General Manager, Corporate Internal Audit Division of Fujitsu Limited
June 2014
Full-time Corporate Auditor, FUJITSU COMPONENT LIMITED(Currently FCL COMPONENTS LIMITED)
June 2016
Director (Audit & Supervisory Committee Member) , FUJITSU COMPONENT LIMITED(Currently FCL COMPONENTS LIMITED)
June 2018
Independent Outside Director of Socionext Inc.
July 2022
Advisor to Socionext Inc.
June 2023
Outside Director (Full-time Audit & Supervisory Committee Member) of Socionext Inc.
April 2024
Independent Outside Director (Full-time Audit & Supervisory Committee Member) of Socionext Inc. (Current Position)
Noriko Yoneda Independent Outside Director (Audit & Supervisory Committee Member)

Noriko Yoneda

Independent Outside Director
(Audit & Supervisory
Committee Member)
October 2001
Qualified as an attorney and joined Tatsuno, Ozaki & Fujii Law Office
October 2014
Joined TMI Associates
July 2020
Established Kobe Grace Law Office, Representative Attorney (Current Position)
March 2023
Outside Director of KEIWA Incorporated (Current Position)
June 2023
Independent Outside Director (Audit & Supervisory Committee Member) of Socionext Inc. (Current Position)