Faculty Fellow

Associate Professor, Institute for Advanced Studies on Asia, the University of Tokyo

Activities at RIETI


International Politics in East Asia

Research Projects


2009 Ph.D. (Law), the University of Tokyo
2004 LL.M., the University of Tokyo


2019 – Associate Professor, the University of Tokyo
2018 Professor, Kanagawa University
2014 Visiting Associate Professor, Shorestein-APARC, Stanford University
2010 Associate Professor, Kanagawa University
2009 Postdoctoral Fellow, Australian National University
2007 Assistant Professor, the University of Tokyo

Selected Publications and Papers


  • In a Search for Coexistence: the United States and Two Chinas during the Cold War (Tokyo: Keiso, 2015) (Japanese)
  • East Asian Order After the End of the Cold War (Tokyo, Keiso, 2020) (editor; Japanese)
  • Looking for Leadership: The Dilemma of Political Leadership in Japan (Tokyo and New York: Japan Center for International Exchange, 2015) (editor)

Papers Published in Refereed Journals


  • "Japan: Making Order and Stability in Free and Open Indo Pacific" CSCAP Reginal Security Outlook, 2021, 17-19.
  • "American Power in Japanese Security Strategy,” in Andrew O'Neil and Michael Heazle (eds.), China's Rise and Australia–Japan–US Relations Primacy and Leadership in East Asia, London: Edward Elger, 2018, pp.143-166.
  • "Japan-Taiwan Relations since 2008: An Evolving, Practical, Non-Strategic Partnership," Jean-Pierre Cabestan and Jacques deLisle (eds.), Political Changes in Taiwan under Ma Ying-jeou: Partisan conflict, policy choices, external constraints and security challenges, London and New York: Routledge, 2014, pp.232-246.
  • "The rise of China and the transformation of Asia-Pacific security architecture," William T. Tow and Brendan Taylor (eds.), Contending Cooperation: Bilateralism, Multilateralism, and Asia-Pacific Security, London and New York: Routledge, 2013, pp.135-156.
  • "Security Arrangements in the Asia-Pacific: a Three-Tier Approach," William T. Tow and Rikki Kerstain (eds.), Bilateral Perspectives on Regional Security: Australia, Japan and the Asia-Pacific Region, New York: Palgrave MacMillan, 2012, pp.214-240.