- 2004 - - Seinan Jogakuin University (Junior College), Professor
- 1999 - 2003 Seinan Jogakuin Junior College, Professor
- 1993 - 1999 Seinan Jogakuin Junior College, Associatet Professor
- 1991 - 1993 Yamanashi Eiwa College, Associate Professor
- 1985 - 1991 Yamanashi Eiwa College, Lecturer(Full-time)
- 1984 - 1985 Shoei Junior College, Lecturer(Part-time)
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