- 2001 - 2005 Hiroshima University Graduate School of Letters
- 2001 - 2005 Professor,Graduate School of Letters,Hiroshima University
- 1997 - 2001 Hiroshima University School of Letters
- 1997 - 2001 Professor, Faculty of Letters, Hiroshima Univerity
- 1983 - 1997 Hiroshima University School of Letters
- 1983 - 1997 Associate Professor, Faculty of Letters,Hiroshima University
- 1994 - ケンブリッジ大学 客員研究員(クレア・ホール学寮)
- 1994 - ロンドン大学 客員研究員(バークベックコレッジ)
- 1994 - Clare Hall, Cambridge, UK, Visiting Fellow
- 1994 - Biekbeck College, Univ. of London, Visiting Scholar
- 1975 - 1983 Ehime University
- 1975 - 1983 Ehime University, General Education Dept, Lecturer & Assistant Professor, and Faculty of Letters, Associate Professor
- 1975 - 1976 ケンブリッジ大学 大学院生(トリニティーホール学寮)
- 1975 - 1976 Trinity Hall, Cambridge, UK, Ph.D. Candidate
- 1972 - 1975 Hiroshima University School of Letters
- 1972 - 1975 Hiroshima University, Research Assistant