- 1997 - 2001 Okayama University of Science
- 1997 - 2001 Okayama University of Science,
- 1996 - 1997 Kurashiki University of Science and the Arts
- 1996 - 1997 Kurashiki University of Art and Science,
- 1995 - 1997 Fukuyama Heisei University
- 1995 - 1997 Fukuyama Heisei University,
- 1996 - 1996 Kibi International University
- 1996 - 1996 Kibi International University,
- 1993 - 1996 Kibi International University
- 1993 - 1996 Kibi International University, Lecturer
- Assistant Professor
- Part-time Lecturer
- Kochi University Research and Education Faculty, Humanities and Social Science Cluster Education Unit
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