| September 2005 | Minister of State for Economic and Fiscal Policy
Minister of State for Privatization of the Postal Services |
| September 2004 | Minister of State for Economic and Fiscal Policy
Minister of State for Privatization of the Postal Services |
| November 2003 | Minister of State for Financial Services
Minister of State for Economic and Fiscal Policy |
| September 2003 | Minister of State for Financial Services
Minister of State for Economic and Fiscal Policy |
| 2002 | Minister of State for Financial Services
Minister of State for Economic and Fiscal Policy
Minister of State for IT Policy |
| 2001 | Member, IT Stratergy Headquarters
Minister of State for Economic and Fiscal Policy
Minister of State for IT Policy |
| 2000 | Member, IT Strategy Council (The Advisory Body of former prime minister Mori) |
| 1999 | President, The Tokyo Foundation |
| 1998 | Executive Director, The Tokyo Foundation
Member, Economic Strategy Council (The Advisory Body of ex-prime minister Obuchi) |
| 1997 | Director, The Tokyo Foundation (former Global Foundation for Research and Scholarship) |
| 1996 | Professor, Faculty of Policy Management, Keio University |
| 1990 | Associate Professor, Faculty of Policy Management, Keio University |
| 1989 | Visiting Associate Professor, Harvard University
Visiting Fellow, Institute of International Economics |
| 1987 | Associate Professor, Faculty of Economics, Osaka University |
| 1982 | Senior Economist, Institute of Fiscal and Monetary Policy, Ministry of Finance |
| 1981 | Visiting Scholar, Harvard University and University of Pennsylvania |
| 1977 | Entered the Research Institute of Capital Formation, Japan Development Bank |
| 1973 | Entered Japan Development Bank |
