Oct. 1987
Joined Eiwa Audit Corporation (currently, KPMG AZSA LLC)

Aug. 1992
Registered as a certified public accountant

Oct. 1993
Joined Sasaki Certified Public Accountants Office

Apr. 1997
Joined Internet Research Institute, Inc. (IRI)

Sep. 1998
Appointed Director, CFO of Internet Research Institute, Inc. (IRI)

Feb. 2000
Appointed Director, CFO of IRI USA, Inc.

Nov. 2002
Appointed Director, President, CEO and Secretary of IRI USA, Inc.

Nov. 2002
Established Gratia, Inc. (currently, Acuray, Inc.) Appointed President (current position)

Dec. 2010
Appointed Director in charge of Finance and Business Planning of Nano-Optonics Energy Inc. (currently, UNIMO Co., Ltd.)

Apr. 2016
Appointed Visiting Professor of Hakuoh University

Jun. 2017
Appointed Outside Corporate Auditor of AEON CREDIT SERVICE CO., LTD.

Apr. 2018
Appointed Professor of Showa Women’s University

Jun. 2018
Appointed Member, Board of Directors (Outside) of Sumitomo Dainippon Pharma Co., Ltd. (currently, Sumitomo Pharma Co., Ltd.)

Jun. 2018
Appointed Outside Director of Tokyu Fudosan Holdings Corporation

Apr. 2019
Appointed Visiting Professor of Hakuoh University (current position)

Jun. 2023
Appointed Outside Audit & Supervisory Board Member of YKK Corporation (current position)

Mar. 2024
Appointed Outside Audit & Supervisory Board Member of Kao Corporation (current position)

Jun. 2025
Appointed Outside Director of KONICA MINOLTA, INC. (current position)

May. 2026
Appointed Outside Director of the Company (current position)