• State Minister, Cabinet Office
• Parliamentary Vice Minister, Ministry of Defense
• Deputy Secretary-General, LDP
• Deputy Chair, General Council, LDP
• Deputy Chair, Diet Affairs Committee, LDP
• Chief Director, Special Committee on Political Reform, House of Representatives
• Director, Committee on Rules and Administration, House of Representatives

• Director, Committee on Foreign Affairs, House of Representatives
• Director, Committee on Audit and Oversight of Administration, House of Representatives
• Member, Committee on Security, House of Representatives
• Member, Committee on Financial Affairs, House of Representatives
• Member, Special Committee on North Korean Issues, House of Representatives
• Member, Special Committee on Regional Revitalization, House of Representatives
• Member, Special Committee on National Security, House of Representatives
• Member, Special Committee on the Legislation for Peace and Security of Japan and the International Community
• Member, Special Committee on Anti-Piracy Measures, Prevention of International Terrorism, and Japan’s Cooperation and Support, House of Representatives
• Member, Special Committee on Promotion of Science and Technology, and Innovation, House of Representatives

• Acting Director, National Defense Division, LDP
• Deputy Director, International Division, LDP
• Deputy Chief Secretary, Strategic Headquarters on the Creation of a New International Order, LDP
• Deputy Chief Secretary, Headquarters on the Economic Growth Strategy, LDP
• Deputy Chief Secretary, Headquarters on Covid-19 issues, LDP
• Chief Secretary, Project Team on Enhancement of Drug Discovery Capability, LDP
• Chief Secretary, Project Team on System Designs and Information Services for Covid-19 issues, LDP
• Chief Secretary, Project Team on Contingency Operation for Covid-19 issues, LDP
• Deputy Chief Secretary, Project Team on Vaccine Operations and Developments for Covid-19, LDP
• Deputy Chief Secretary, Research Commission on Science, Technology and Innovation Strategy, LDP
• Deputy Chief Secretary, Research Commission on Security, LDP
• Chief Secretary, Special Committee on Space and Ocean Development, LDP
• Acting Chief Secretary, Subcommittee on Space Policy Strategy, LDP
• Manager, Research Commission on Intellectual Property Strategy, LDP
• Secretary-General, Special Mission Committee on Social Business Promotion, LDP
• Manager, Research Commission on Employment Issues, LDP
• Deputy Chairperson, Research Commission on Fishery Policies, LDP
• Manager, Research Commission on the Finance and Banking Systems, LDP
• Deputy Chief Secretary, Special Committee on Aviation Policy, LDP
• Deputy Director, Women’s Affairs Division, LDP

• Acting Director, Foreign Affairs Division, LDP
• Acting Director, Treasury and Finance Division, LDP
• Assistant to Chairman, Research Commission on SME, LDP
• Acting Chief Secretary, Subcommittee on Promotion of Local Vitalization,  Headquarters for the Action Committee for the Tokyo 2020 Olympic and Paralympic Games, LDP
• Manager, Administrative Reform Promotion Headquarters, LDP
• Deputy Chief Secretary, Research Commission on Intellectual Property Strategy, LDP
• Chief Secretary, Subcommittee on Industrial Vitalization, LDP
• Chief Secretary, Subcommittee on Vitalization of Science, Technology and Innovation, LDP
• Deputy Chief Secretary, Special Committee on Space and Ocean Development, LDP
• Chief Secretary, Subcommittee on Space Policy Strategy, LDP
• Deputy Chief Secretary, Special Mission Committee on National Security and Land Legislation, LDP
• Manager, Special Mission Committee on IT Strategy, LDP
• Manager, Special Mission Committee for Promotion of the Cool Japan Strategy, LDP
• Manager, Special Mission Committee on International Health Strategy, LDP
• Vice Chairman, Committee on Organizations Involved with National Security, LDP
• Deputy Chief Secretary and Project Manager, National Vision Project Headquarters, LDP
• Deputy Director, Information Bureau, LDP
• Member, Diet Affairs Committee, LDP
• Member, Election Strategy Committee, LDP
• Deputy Director, Youth Division, LDP
• Deputy Director, Foreign Affairs Division, LDP
• Deputy Director, Agriculture and Forestry Division, LDP
• Deputy Director, National Defense Division, LDP
• Acting Director, Public Speeches Division, LDP
• Advisor, Youth Division, LDP

In 2004, he started his political career. He joined the Cabinet Secretariat of Japan, appointed Parliamentary Private Secretary for political issues to Yoshinori Ohno, the Minister of State for Defense. He was involved in supporting some issues including 1)revision of the National Defense Program Guideline, 2)realignment of U.S. bases in Japan, and 3)extension of activities of Japan’s Self Defense Forces in Iraq. After his 400-day-term, he has been serving as the legislative assistant to him, member of the House of Representatives. From 2006 to 2007, other than the position in the diet, he has been with the Department of Information Physics and Computing of the University of Tokyo, where he earned Ph.D. degree in 2007. In September, 2012, he was elected Chairman of 3rd District Branch of Kagawa Prefecture of LDP and was elected member of the House of Representatives of Japan in December, 2012, at the 46th general election.

He was appointed Parliamentary Vice Minister of Defense (the 3rd Reshuffled Cabinet of the 3rd Abe Administration and the 4th Abe Administration), Deputy Secretary-General of the LDP, and State Minister of Cabinet Office in charge of economic security and disaster management etc (the 1st and 2nd Kishida Administration), in 2017, 2019, and 2021, respectively.

His current interests include foreign and international affairs, state security and defense issues, cyber and space policies, science and technology, monetary policy, SME, industrial structure, social business, promotion of IoT/AI/BD as innovation policy, etc.