- 1995 - 2001 佐賀大学 教授
- 1995 - 2001 Saga University, Professor
- 1988 - 1995 佐賀大学教育学部 助教授
- 1988 - 1995 Saga University, Assistant Professor
- 1987 - 1988 National Institute of Technology, Matsue College
- 1987 - 1988 Matsue Technical College, Assistant Professor
- 1986 - 1987 National Institute of Technology, Matsue College
- 1986 - 1987 Matsue Technical College, Lecturer
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