- Apr. 1982
- Joined the Ministry of Foreign Affairs (hereinafter “MOFA”)
- July 2014
- Took office as Director-General, Economic Affairs Bureau, MOFA and Councillor, Cabinet Secretariat
- Oct. 2015
- Took office as Director-General, International Legal Affairs Bureau, MOFA
- July 2017
- Took office as Director-General, Foreign Service Training Institute, MOFA
- Jan. 2019
- Retired from MOFA
- Apr. 2020
- Took office as Visiting Professor, Graduate School of Public Policy, The University of Tokyo
- June 2021
- Took office as Director of the Company (current)
- Apr. 2023
- Special Assistant to the Minister for Foreign Affairs (current)
