- 2002 - 2004 内閣官房 情報セキュリティ対策推進室 参事官
- 2002 - 2004 Counsellor, IT Security Office, Cabinet Secretariat
- 2004 - - 慶應義塾大学 教授
- 2004 - - Professor, Keio University
- 2001 - 2002 Cabinet Office
- 2001 - 2002 Counsellor, Secretariat of Council for Regulatory Reform, Cabinet Office
- 1998 - 2001 通商産業省 通商政策局 通商関税課長
- 1998 - 2001 Director, Tariff Division, International Trade Policy Bureau, Ministry of International Trade and Industry
- 1995 - 1998 日本貿易振興会(JETRO) サンフランシスコ・センター 次長(技術担当)
- 1995 - 1998 Director for Technology, San Francisco Center, Japan External Trade Organization (JETRO)
- 1993 - 1995 通商産業省 通商政策局 欧州共同体企画官
- 1993 - 1995 Director for EU Affairs, Trade Policy Bureau, Ministry of International Trade and Industry
- 1991 - 1993 科学技術庁 研究開発局 宇宙利用推進室長
- 1991 - 1993 Director, Space Utilization Division, Research and Development Bureau, Science and Technology Agency
- 1977 - - 通商産業省(現経済産業省)入省
- 1977 - - joined Ministry of International Trade and Industry
- 研究推進センター 所長
- (now reorganized into Ministry of Economy, Trade and Industry)
- Director, Center for Research Promotion