| 1980 - |
Member of the Japan P.E.N Club |
| 1982 |
Member of the Committee for Drawing Up a Vision for the Space Industry, Ministry of International Trade and Industry |
| 1984 |
Member of the Study Committee for Marine City Space Development |
| Nov.1986 - Aug.1994 |
Board Director of Japan Young Astronauts Club |
| 1987 |
Member of the Transportation Study Group，Ministry of Transport |
| Apr.1992 - Mar.1993 |
Member of the Basic Concept Committee for the Tokyo Metropolitan Space Science Building |
| Apr.1993 - Mar.1994 |
Member of the Basic Plan Study Committee for the Tokyo Metropolitan Space Science Building |
| Aug.1995 - |
Establish Japan Maria Reiche Fund |
| Sep.1995 - Dec. 2000 |
Member of the Building Council, Ministry of Construction |
| Feb.- Dec.1997 |
Member of the Advisory Working Group on "Robolympic" :International Contest of the Robot,The Science and Technology Agency |
| Apr.1998 - Mar.2000 |
Member of the Customs Dissatisfaction Review Committee, Ministry of Finance |
| Apr.1998 - Mar.1999 |
Member of the Advisory Working Group for Historical Heritages and Traditional Culture, Ministry of Home Affairs |
| July1998 - Mar. 2000 |
Member of the Promotion Committee for the 100th Anniversary of Japanese immigration to Peru, Ministry of Foreign Affairs |
| Nov.1998 - Mar.1999 |
Member of the Screening Committee for the 20 Century Design Stamps, Ministry of Posts and Telecommunications |
