- 2006/05 - 現在 Rikkyo University
- 2006/05 - 現在 Chief Adviser to the President,RIKKYO UNIVERSITY
- 2006/04 - 現在 Rikkyo University Department of Business, College of Business
- 2006/04 - 現在 Professor,Department of Business,College of Business,RIKKYO UNIVERSITY
- 2002/04 - 現在 Rikkyo University Graduate School of Social Design Studies
- 2002/04 - 現在 Professor,Graduate School of Social Design Studies,RIKKYO UNIVERSITY
- 2003/04 - 2006/03 Rikkyo University Department of Industrial Relations, College of Social Relations
- 2003/04 - 2006/03 Professor,Department of Industrial relation,College of Sociology,RIKKYO UNIVERSITY
- 1998/07 - 2002/05 Rikkyo University
- 1998/07 - 2002/05 Chief Adviser to the President,RIKKYO UNIVERSITY
- 1991/04 - 2002/03 Rikkyo University Department of Social Relations, College of Social Relations
- 1991/04 - 2002/03 Professor,Department of Sociology,College of Sociology,RIKKYO UNIVERSITY
- 1994/07 - 1998/06 立教大学産業関係研究所 所長
- 1994/07 - 1998/06 Director in General,RIKKYO UNIVERSITY
- 1986/04 - 1991/03 Rikkyo University Department of Social Relations, College of Social Relations
- 1986/04 - 1991/03 Associate Professor (as old post name),Department of Sociology,College of Sociology,RIKKYO UNIVERSITY
- Rikkyo University College of Business, Department of Business Professor