| March 1952 |
Graduated from the University of Tokyo, Sociology Department (Major: Industrial Sociology) |
| 1952 − 1955 |
Fellowship Researcher, Graduate School, University of Tokyo (Major: Business Management) |
| April 1955 |
Joined Rikkyo University (After being appointed Assistant Professor and Associate Professor, became Professor from 1965 to 1989) |
| 1960 − 1962 |
Post Doctoral Fellow at Massachusetts Institute of Technology |
| 1970 − 1976 |
Chief Executive and Founder of Japan Research Institute, a non-profit think tank
(Vice President from 1976 to 1981) |
| 1975 |
Fellow at Harvard University |
| May 1981 |
President of Japan Research Institute (until 2001) |
| 1985− 1987 |
President and Founder of New Business Conference, a non-profit organization of entrepreneurs |
| April 1989 |
President and Founder of Tama University [private university] |
| May 1993 |
Chairman of Japan Management School (to present) |
| April 1995 |
Honorary President of Tama University upon resignation as President (to present) |
| April 1997 |
President and Founder of Miyagi University [Prefectural university] (until 2001) |
| October 2001 |
Chairman of Japan Research Institute |
| April 2006 |
President of Japan Research Institute (to present) |
| 2007 |
Trustee of the Graduate School of Management, Globis University |