2002.8-2004.6 Director-General for International Affairs, Ministry of Education, Culture, Sports, Science and Technology (MEXT); Secretary-General, Japanese National Commission for UNESCO
2004.7-2005.7 Director-General, National Institute of Science and Technology Policy (NISTEP)
2005.7-present Principal Fellow, Center for R&D Strategy, JST (Japan Science and Technology Agency)
2005.10-2007.7 Executive Director, JST
2007.8-present Professor, National Graduate Institute for Policy Studies (GRIPS)
2008.3-2009.12 Chair, Financial Audit Board, The ITER International Fusion Energy Organization
2009.3-present Guest Professor, Institute of Policy and Management, Chinese Academy of Sciences
2011.1-present Chair, Global Science Forum, Committee for Scientific and Technological Policy, Organization for Economic Co-operation and Development (OECD)