1992 M.P.A., Harvard University
1991 LL.M., Columbia University
1983 LL.B., Osaka University

2008.7-present Director of Research, RIETI
2005-2008 Professor, Faculty of Economics, Shinshu University
2002-2005 Principal Administrator, Energy Technology Policy Division, Energy Technology Office, International Energy Agency (IEA), Organisation for Economic Co-operation and Development (OECD)
2001 Head, International Energy Forum, Agency for Natural Resources and Energy, Ministry of Economy, Trade and Industry (METI)
1999 Manager, Energy Demand Forecast Group, Energy Data Modelling Centre (EDMC), the Institute of Energy Economics, Japan (IEEJ)
1985 Joined the Ministry of International Trade and Industry (MITI)
1983 Joined Nippon Steel Corporation

"Ultra-Long Term Global Energy Supply/Demand Models and Simulation Analyses,"Tokyo: IEEJ, EDMC (2000). (with Ito, K., Murota, Y., and Morita, Y.)
"Report on Long-Term Energy Supply and Demand and Feasibilities of Alternative Energy Sources," Tokyo: Research Committee on Long-Term Energy Supply and Feasibilities of Alternative Energy Sources (2000)
"Energy Research and Development Innovation," in Energy Policies of IEA Countries, Australia, 2005 Review , Paris, France : IEA/OECD, (2005)　
"A possible　impact of environmental taxes, subsidies and emissions trading in the case of the foundry industry (i.e. a supporting industry for automobile industry, etc), domestic and global analysis," Staff Paper Series '08-03, Faculty of Economics, Shinshu University, (2008)