- Apr. 1984
- Appointed as Prosecutor
- July 2021
- Took office as Superintending Prosecutor of Tokyo High Public Prosecutors Office
- June 2022
- Took office as Prosecutor-General
- July 2024
- Retired from Prosecutor
- Oct. 2024
- Attorney at law of Yukio Kai Law Office (current)
- June 2025
- Took office as Audit & Supervisory Board Member of the Company (current)
