Security Studies, Regional Studies-Areas of Expertise

Sukeyuki ICHIMASA (Senior Fellow, Policy Studies Department, Defense Policy Division)


2000 B.A. in Liberal Arts, International Christian University
2002 M.A. in International Public Policy, Osaka University
Special Advisor, Permanent Mission of Japan to the International Organizations in Vienna
2004 COE Research Assistant, International Christian University
2005 Research Fellow, Center for the Promotion of Disarmament and Non-Proliferation, Japan Institute of International Affairs(JIIA)
2007 Ph.D. in International Public Policy, Osaka University
Adjunct Lecturer, Ryotokuji University
2010 Research Fellow, the National Institute for Defense Studies(NIDS)
Adjunct Lecturer, Otsuma Women’s University
2012 Senior Fellow, Policy Studies Department, Defense Policy Division, NIDS
Assistant Director of International Exchange Programme

Areas of Expertise

Arms Control, Disarmament and Non-Proliferation, Security Studies

Selected Publications


  • "Economic Sanctions and Development of Nuclear Weapons," NIDS Security Studies, Vol.19, No.2, March 2016, pp.27-47.
  • "Threat of Cascading "Permanent Blackout" Effects and High Altitude Electromagnetic Pulse(HEMP)," NIDS Security Studies, Vol.18, No.2, February 2016, pp.1-21.
  • "Chapter 8 CBRN Defense: Responding to Growing Threats," in the National Institute for Defense Studies, ed., East Asian Strategic Review 2015, The Japan Times, 2015, pp.293-315.(*Co-authored)
  • "The Concept of Virtual Nuclear Arsenals and a World without Nuclear Weapons", NIDS Journal of Defense and Security, No.13, December 2012, pp. 23-37.
  • “Assessing the 2010 NPT Review Conference and a Vision towards “a World Free of Nuclear Weapons”.” NIDS Briefing Memo, 2010, pp.27-31.
  • “Japan’s Nuclear Disarmament and Non-Proliferation Policy: Multilateral Approaches, Regional Efforts and Region-to-Region Cooperation.” in Takako Ueta and Eric Remacle eds. Tokyo-Brussels Partnership: Security, Development and Knowledge-based Society, Bruxelles: Peter Lang Publishing Group, 2008, pp.203-218.
  • “Early Entry into Force of CTBT for Future NPT Regime: Challenge for Renovation of Verification in the Post DPRK Nuclear Test 2006.” CPDNP Op-Ed Working Paper, 2007, pp.1-7.
  • “Comprehensive Nuclear-Test-Ban Treaty (CTBT) On-Site Inspection Regime.” Doctoral Thesis, Osaka University, 2007.
  • “CTBT On-Site Inspection: Protection of Confidentiality and Information Relevancy.” CPDNP Working Paper, 2006, pp.1-13.


  • "Tactical Nuclear Weapons: Next Challenges of Nuclear Arms Control and Disarmament," The Journal of International Security, Vol.40, No.4, March 2013, pp.71-85.
  • “Negotiating Arms Control, Disarmament and Non-Proliferation and the UN System: An Essay on Structural Collision between Haves and Have-nots of the Nuclear Weapons.” Kokuren Kenkyu [United Nations Studies], No.10, 2009, pp.155-174. (English abstract attached)
  • “Norm Building by the UN Security Council: UNSCR 1540 and Governance of WMD Non-Proliferation.” International Relations, No.155, 2009, pp.61-75. (English abstract attached)
  • Kakujikken no kinsi to kensyo [Prohibition and Verification of Nuclear Test Explosion].”in Masahiko Asada and Hirofumi Tosaki eds. Kakugunsyuku Fukakusan no Hou to Seiji [Law and Politics of Nuclear Disarmament and Non-Proliferation], Tokyo: Shinzansya, 2008, pp.223-245.
  • “Comprehensive Nuclear-Test-Ban Treaty (CTBT) On-Site Inspection Regime.” Doctoral Thesis, Osaka University, 2007, pp.1-146.
  • “Coordinated Multilateral Action against the Threat of WMD Proliferation: A Universal Non-Proliferation Regime and European Union.” International Christian University Journal of Social Science, No.54, 2005, pp. 73-98. (English abstract attached)
  • “SHIRBRIG: The Touchstone of UN Stand-by Force.” Gaimusyo Tyousa Geppou, No.3, 2002, pp.79-117. (English abstract attached)

Conference Papers, etc

  • “Reevaluating Threats of High-Altitude Electromagnetic Pulse (HEMP): A New Challenge to the Recent Arguments on Humanitarian Impact of Nuclear Weapons,” paper presented at the JAIR Annual Convention Sectional Meeting B-5 International Security I (Sendai, October 30, 2015, Japanese.)
  • “"A Framework for Verifying the Dismantlement and Abandonment of Nuclear Weapons: A Policy Implication for the Denuclearization of Korean Peninsula." Paper presented at the 32th Annual Meeting of INMM Japan (Tokyo, 11 November 2011, Japanese.)
  • “Prevention of Nuclear Proliferation and New Nuclear Danger.” Paper presented at the International Nuclear Security Seminar organized by the Korea National Defense University (Seoul, 22 June 2011.)
  • “A New Perspective on Building the International Norm for the Nuclear Free World.” Paper presented at the Peace Studies Association, Autumn Conference (Kyoto, 29 November 2009, Japanese.)
  • “Nuclear Sharing under the Nuclear Nonproliferation Regime: NATO’s Experience and Its Implications.” Paper presented at the Japan Association of International Relations Annual Convention on (Kobe, 6 November 2009, Japanese.)
  • “Strengthening of Capacity Building for the Future On-Site Inspection Readiness: How to Apply Lessons Identified through the Post-Integrated Field Exercise (IFE) Review Processes?” Paper presented at the 16th CTBTO On-Site Inspection Workshop (Wien, 6 May 2009, English.)
  • “Significance of NTM Verification in the Executive Organ Established for the Disarmament and Non-Proliferation Treaties.” paper presented at the 28th Annual Meeting of INMM Japan (Tokyo, 8 November 2007, Japanese. *Co-authored.)
  • “Japan and the International Efforts on Non-Proliferation.” Paper presented at the international conference on “EU and Japan: the Emerging Challenges for the Middle of the Decade 2000-2010.” (Brussels, 28 November 2006, English.)
  • “How to Protect the OSI Confidential Information.” Paper presented at the 11th CTBTO On-Site Inspection Workshop, (Canberra, 14 October 2005, English.)
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