Education

• 2001

  B.A. in Law, Hiroshima University

• 2003

  M.A. in International Public Policy, Osaka University

• 2004-2005

  Visiting Research Associate, Sigur Center for Asian Studies, Elliott School of International Affairs, George Washington University

• 2007

  Ph.D. in International Public Policy, Osaka University

Employment

• 2007

  COE Research Fellow, Graduate School of Law, Kyoto University

• 2008

  JSPS Research Fellow (PD), School of Government, Kyoto University

• 2009

  Fellow, 2nd Military History Research Office, Military History Department, NIDS

• 2011

  Assistant Councilor, Cabinet Secretariat (National Security and Crisis Management)

• 2013

  Senior Fellow, National Security Policy Division, Center for Military History, NIDS

• 2014-2015

  Visiting Scholar, Weatherhead East Asian Institute, Columbia University

Selected Publications

English

• "Insights into Japan-U.S. Relations on the Eve of the Iraq War: Dilemmas over 'Showing the Flag' "

  Asian Survey Vol. 45, No. 6, 2005

• "Japan's Role in East Asian International Relations"

  Issues & Insights Vol. 6, No. 8, 2006

• "Postwar Japanese Ambassadors to the U.S.: Generational Transitions and Varying Functions"

  Transactions of the Asiatic Society of Japan Vol. 21, 2008

• "Japan's Security Outlook: Its Implications for the Defense Policy"

  Asia Pacific Countries' Security Outlook and Its Implications for the Defense Sector (NIDS Joint Research Series 5) 2010

• "Historical Transition of the Security Organs Subordinate to the Cabinet and the Japanese Version of National Security Council"

  National Institute for Defense Studies Briefing Memo No. 170, 2012

• "Unfinished 'Beyond-the-Threat Theory': Japan's 'Basic Defense Force Concept' Revisited"

  National Institute for Defense Studies Journal of Defense and Security Vol. 17, 2016

• "Japan-United States Alliance and Japan's Defense Concept"

  Japan's Alliances: Past and Present (National Institute for Defense Studies International Forum on War History: Proceedings) 2017

• "A Pragmatic Diplomat in Pluralization: Yoshio Okawara and the Restoration of Postwar Japan-US Relations"

  Asia-Pacific Review Vol. 25, No. 2, 2018

• "The 'Termination' of the Korean War, the 'Dissolution' of the United Nations Forces and Their Influence on Japan"

  National Institute for Defense Studies Commentary 80, 2018

• "Tracing Criticism of the 'Basic Defense Force Concept' during the Second Cold War: Controversies over Japan's Defense Policy in the 1980s"

  National Institute for Defense Studies Journal of Defense and Security Vol. 20, 2019

• "Controversies over Japan's Defense Policy in the Detent Era"

  National Institute for Defense Studies Briefing Memo August 2019

• "'The U.S.-Japan/U.S.-South Korea Alliance' and 'the Far East 1905 System': Perspectives on the 70th Anniversary of the San Francisco Peace Treaty and the U.S.-Japan Security Treaty"

  National Institute for Defense Studies Briefing Memo July 2021

• "The Crisis Management System in the Kantei"

  Asia Pacific Initiative,10-year Investigation Commission on the Fukushima Nuclear Accident: Final Report by Investigation Commission on the Fukushima Nuclear Accident, April 2022

• "Thought on How To End Wars"

  Discuss Japan: Japan Foreign Policy Forum 72, October 16, 2022

Japanese

• Taishi Tachi no Sengo Nichi-Bei Kankei: Sono Yakuwari wo Meguru Hikaku Gaikō Ron 1952-2008 [the ambassadors and postwar Japan-U.S. relations: diplomatic consideration on their roles 1952-2008]

  Kyoto: Mineruva Shobō, 2012

• Kawariyuku Naikaku Anzen Hoshō Kikō: Nihon Ban NSC Seiritsu heno Michi [a historical study of the security organs subordinate to the cabinet: the road to formation of the Japanese version of National Security Council]

  Tokyo: Hara Shobō, 2015

• Anzen Hoshō to Bōeiryoku no Sengo Shi: "Kibanteki Bōeiryoku Kōsō" no Jidai [Unintended Consensus: A History of Postwar Japan's Defense Concept]

  (Tokyo: Chikura Shobō, 2021), The 7th INOKI Masamichi Award of Japan Society for Defense Studies

• Sensō ha Ikani Shūketsu Shitaka: Nido no Taisen kara Betonam, Iraku made [Termination of Wars: Theory and History]

  (Tokyo: Chūoukōron Shin Sha, 2021),The 43rd ISHIBASHI Tanzan Award

• Sengo Nihon no Anzen Hoshō: Nichi-Bei Dōmei, Kenpō 9 Jyō kara NSC made [Postwar Japan's National Security: A Brief History]

  Tokyo: Chūoukōron Shin Sha, 2021