- 1983 - 1989 Tohoku Institute of Technology
- 1983 - 1989 Tohoku Institute of Technology, Assistant
- 1989 - - 東北工業大学 教授
- 1989 - - Tohoku Institute of Technology, Professor
- 1976 - 1983 宮城工業高等専門学校 助教授
- 1976 - 1983 Miyagi Technical College, Assistant Professor
- 1973 - 1976 宮城工業高等専門学校 講師
- 1973 - 1976 Miyagi Technical College, Lecturer
- 1971 - 1973 祗園寺短期大学 講師
- 1971 - 1973 Gionji Junior College, Lecturer
- Professor
- Tohoku Institute of Technology Center of General Education parofessor
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