- Apr. 1976
- Joined Chugai Pharmaceutical Co., Ltd.
- Oct. 2002
- Took office as Vice President, General Manager of Corporate Planning Dept. of Chugai Pharmaceutical Co., Ltd.
- Oct. 2004
- Took office as Senior Vice President, General Manager of Corporate Planning Dept. of Chugai Pharmaceutical Co., Ltd.
- Mar. 2005
- Took office as Senior Vice President, Deputy Managing Director of Sales & Marketing Group of Chugai Pharmaceutical Co., Ltd.
- July 2005
- Took office as Senior Vice President, Head of Strategic Marketing Unit of Chugai Pharmaceutical Co., Ltd.
- Mar. 2008
- Took office as Senior Vice President, Head of Lifecycle Management & Marketing Unit of Chugai Pharmaceutical Co., Ltd.
- Mar. 2010
- Took office as Director, Executive Vice President of Chugai Pharmaceutical Co., Ltd.
- Mar. 2012
- Took office as Representative Director, President & COO of Chugai Pharmaceutical Co., Ltd.
- Mar. 2018
- Took office as Representative Director, President & CEO of Chugai Pharmaceutical Co., Ltd.
- Mar. 2020
- Took office as Representative Director, Chairman & CEO of Chugai Pharmaceutical Co., Ltd.
- Mar. 2022
- Took office as Senior Advisor of Chugai Pharmaceutical Co., Ltd. (current)
- June 2022
- Took office as Audit & Supervisory Board Member of the Company (current)
