- 1998/04/01 - 1999/03/31 The University of Tokyo
- 1997/04/01 - 1999/03/31 College of Arts and Sciences, University of Tokyo
- 1995/04/01 - 1996/03/31 University of the Sacred Heart
- 1994/04/01 - 1996/03/31 Tsuda College
- 1987/04/01 - 1995/03/31 University of the Sacred Heart
- 1991/04/01 - 1991/09/30 College of Arts and Sciences, University of Tokyo
- 1986/04/01 - 1987/03/31 Faculty of Commerce, Chuo University
- 1986/04/01 - 1987/03/31 University of the Sacred Heart
- 1979/11/01 - 1980/04/30 College of Arts and Sciences, University of Tokyo
- 1979/04/01 - 1980/04/30 Tokyo Institute of Technology
- 1978/04/01 - 1980/03/31 Faculty of Medicine, Toho University
- Sophia University Faculty of Foreign Studies, Department of German Studies Professor
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EU研究所(旧ドイツ語圏研究所)
, Japanische Gesellschaft fuer Germanistik
, OAG Deutsche Gesellschaft fuer Natur- und Voelkerkunde Ostasiens Tokyo