Apr 1983: Joined the Company Oct 2008: General Manager, No. 1 Design Department, System Business Division Aug 2014: Director, Hamamatsu Corporation (current) Oct 2014: General Manager, System Design Department Oct 2016: Acting General Manager, System Business Division (currently Deputy General Manager, System Business Division) Dec 2017: Appointed Director, General Manager, System Business Division Dec 2019: Appointed Managing Director Dec 2020: Appointed Director, Managing Executive Officer Dec 2021: Appointed Representative Director, Senior Managing Executive Officer Oct 2022: Chairman, Hamamatsu Photonics Trading (China) Co., Ltd. (current) Dec 2022: Appointed Representative Director and President, President and Executive Officer (current) May 2024: Chairman of the Board, NKT Photonics A/S (current)

Mar 1981: Joined the Company Oct 2012: General Manager, No. 1 Manufacturing Department, Electron Tube Division Jan 2018: Deputy General Manager, Electron Tube Division Dec 2018: Appointed Director Dec 2020: Appointed Managing Executive Officer, General Manager, Electron Tube Division Oct 2022: Chairman, Beijing Hamamatsu Photon Technique Inc. (current) Dec 2022: Appointed Representative Director and Vice President, Vice President and Executive Officer (current) Dec 2023: General Manager, Electron Tube Division; in charge of Laser Business Promotion Department

Jul 1989: Joined the Company Oct 2016: General Manager, No. 3 Manufacturing Department, Solid State Division Oct 2017: Deputy General Manager, Solid State Division Dec 2017: Appointed Director Dec 2019: Appointed Managing Director Dec 2020: Appointed Director, Managing Executive Officer, General Manager, Solid State Division Jun 2021: Director, Hamamatsu Corporation (current) Dec 2022: Senior Managing Executive Officer (current); in charge of Social and Environmental Value Creation and DX Dec 2023: Appointed Representative Director, General Manager, Solid State Division (current) Apr 2024: In charge of Social and Environmental Value Creation

Apr 1979: Joined Kyowa Bank, Ltd. (now Resona Bank, Limited) Jul 2009: General Manager, Shibuya Area Sales Department No. 1, Resona Bank, Limited Jul 2011: Seconded to the Company as General Manager, Finance Department Dec 2012: Appointed Full-time Audit and Supervisory Board Member Dec 2017: Appointed Director, General Manager, Administration Department Dec 2020: Appointed Senior Executive Officer Dec 2022: Appointed Director (current) Apr 2023: General Manager, Finance and Accounting Headquarters Dec 2023: General Manager, Finance and Accounting Headquarters Apr 2024: General Manager, Management Administration Headquarters May 2024: Appointed Director, NKT Photonics A/S (current) Dec 2024: Managing Executive Officer

Apr 1991: Joined the Company Oct 2013: General Manager, Office of the President Jul 2020: General Manager, GSCC Business Mentor Bank Department Dec 2020: Appointed Executive Officer; in charge of External Relations, General Manager, Industry-Government-Academia Collaboration Department Dec 2022: Appointed Managing Executive Officer; in charge of Planning Coordination and External Relations (current) Apr 2023: General Manager, Corporate Planning Headquarters (current) Dec 2024: Appointed Director (current)

Mar 1981: Joined the Company Oct 2012: General Manager, Electron Tube Sales Promotion Department Dec 2015: Appointed Director Oct 2018: General Manager, Sales Division Dec 2020: Appointed Senior Executive Officer Dec 2021: Appointed Managing Executive Officer (current) Dec 2024: Appointed Director (current) Apr 2025: General Manager, Sales Headquarters (current)

Apr 1997: Professor, Institute for Chemical Reaction Science, Tohoku University (now Institute of Multidisciplinary Research for Advanced Materials) Apr 2010: Advanced Institute for Materials Research (AIMR), Tohoku University (now Advanced Institute for Materials Research) Apr 2016: Professor Emerita, Tohoku University (current) Apr 2017: Professor, Research Center for Future Science and Technology, Tohoku University Dec 2020: Appointed Director of the Company (current) Jan 2022: Appointed Director, SMILEco Measurement Inc. (current) Jun 2023: Appointed Outside Director, Mitsubishi Gas Chemical Company, Inc. (current) Apr 2025: Senior Research Fellow, Research Center for Future Science and Technology, Tohoku University (current)

Apr 1997: Registered as attorney-at-law; joined Tomotsune Kimura Mitomi Law Office (now Anderson Mori & Tomotsune) May 2004: Registered as attorney-at-law in New York State Jan 2005: Partner, Anderson Mori & Tomotsune (current) Jun 2010: Outside Director, Roland DG Corporation Jun 2018: Outside Audit & Supervisory Board Member, CYFUSE Biomedical K.K. (current) Mar 2021: Outside Director (Audit and Supervisory Committee Member), Core Concept Technologies Inc. (current) Dec 2021: Appointed Director of the Company (current)

Apr 2013: Professor, The University of Electro-Communications (current) Apr 2021: Director, Center for Quantum Science Research, The University of Electro-Communications Apr 2022: Vice President, The University of Electro-Communications (in charge of Academic Research Data Utilization) Dec 2023: Appointed Director of the Company (current) Apr 2024: Vice President, The University of Electro-Communications (in charge of Strengthening International Development) (current) Vice Executive Director, The University of Electro-Communications (current)

Apr 1976: Joined Yamaha Motor Co., Ltd. Apr 2002: General Manager, AM Business Division, Yamaha Motor Co., Ltd. Jun 2003: Executive Officer, Yamaha Motor Co., Ltd. Mar 2005: Director, Yamaha Motor Co., Ltd. Mar 2007: Senior Executive Officer, Yamaha Motor Co., Ltd. Jan 2009: General Manager, Marine Business Unit, Yamaha Motor Co., Ltd. Nov 2009: Appointed Representative Director, Managing Executive Officer, Yamaha Motor Co., Ltd. Mar 2010: Senior Managing Executive Officer, Yamaha Motor Co., Ltd. Jan 2012: General Manager, Technology Unit, Yamaha Motor Co., Ltd. Mar 2014: Vice President and Executive Officer, Yamaha Motor Co., Ltd. Mar 2018: Advisor, Yamaha Motor Co., Ltd. (retired Mar 2021) Dec 2024: Appointed Director of the Company (current)

Apr 1983: Joined the Company Jul 2006: General Manager, Intellectual Property Department Dec 2017: Appointed Full-time Audit and Supervisory Board Member (current)

Mar 1980: Joined the Company Oct 2010: Manager, Tokyo Sales Office, Domestic Sales Headquarters Oct 2012: Group Leader, Business Group, Laser Business Development Department (now Laser Business Promotion Department) Oct 2016: Deputy General Manager, Compound Materials Center Dec 2020: Appointed Full-time Audit and Supervisory Board Member (current)

Apr 1980: Joined The Bank of Tokyo, Ltd. (now MUFG Bank, Ltd.) Jun 2007: Appointed Executive Officer, The Bank of Tokyo-Mitsubishi UFJ, Ltd. (now MUFG Bank, Ltd.) May 2010: Appointed Managing Executive Officer, The Bank of Tokyo-Mitsubishi UFJ, Ltd. Jul 2012: Appointed Managing Executive Officer, Mitsubishi UFJ Financial Group, Inc. Nov 2014: Appointed Representative Director and Vice President, Mitsubishi UFJ Research and Consulting Co., Ltd. Jun 2016: Appointed Director and Vice President, Tohgin Lease Co., Ltd. Jun 2017: Appointed Representative Director and President, Tohgin Lease Co., Ltd. Jun 2022: Advisor, Tohgin Lease Co., Ltd. (current) Dec 2024: Appointed Audit and Supervisory Board Member of the Company (current)

Apr 1981: Joined Hamamatsu Shinkin Bank (now Hamamatsu Iwata Shinkin Bank) Jun 2013: Director and General Manager, Examination Department, Hamamatsu Shinkin Bank Jun 2015: Managing Director (in charge of Examination and Management Support Departments), Hamamatsu Shinkin Bank Jun 2020: Senior Managing Director (in charge of Branch Operations, Corporate Sales, and Individual Sales), Hamamatsu Iwata Shinkin Bank Jun 2021: Senior Managing Director (in charge of SDGs Promotion, Sales Administration, and Solution Support), Hamamatsu Iwata Shinkin Bank Jun 2023: Senior Managing Director (in charge of Corporate Planning, Digital Promotion, and System Administration), Hamamatsu Iwata Shinkin Bank (current) Dec 2024: Appointed Audit and Supervisory Board Member of the Company (current)