| 2009- |
Vice President and Senior Research Fellow, JFIR |
| 2007 |
Councilor and Senior Research Fellow, JFIR |
| 2006 |
Ambassador in Charge of Inspection, Ministry of Foreign Affairs |
| 2002 |
Ambassador to France |
| 1998 |
Ambassador to India |
| 1995 |
Director, Cabinet Councillors' Office on External Affairs |
| 1993 |
Deputy Vice-Minister of Economic Cooperation Bureau, Ministry of Foreign Affairs |
| 1990 |
Minister of Embassy of Japan in the U.S.A. |
| 1988 |
Director of Management and Coordination Division, Ministry of Foreign Affairs |
| 1981 |
Fellow of the Center for International Affairs, Harvard University |
| 1963-1965 |
Assigned to Italy, France, China, and Belgium |
| 1963 |
Entered the Ministry of Foreign Affairs |
