Graduated from the Faculty of Law, University of Tokyo. Joined the Defense Agency (now the Ministry of Defense) in 1983. For approximately 40 years thereafter, he was involved in the formulation of national security policy at various ministries and agencies, including the Ministry of Defense, the Cabinet Secretariat, the Ministry of Foreign Affairs, the Ministry of Economy, Trade and Industry, and the National Police Agency. He has held positions such as First Secretary for Security Affairs at the Embassy of Japan in the United States, Counselor at the Security Bureau of the National Police Agency, Director of the Administrative Coordination Division of the Ministry of Defense, Spokesperson for the Ministry of Defense, Secretary to the Prime Minister, and Director-General of the Defense Policy Bureau of the Ministry of Defense. From August 2018, he served as Deputy Chief Cabinet Secretary (concurrently) Deputy Director-General of the National Security Secretariat (concurrently) Director-General of the National Cyber Security Center. In 2021, he was appointed Ambassador Extraordinary and Plenipotentiary to Qatar and retired in December 2024.