- 1992 - 2000 Osaka Prefecture University
- 1992 - 2000 Associate Professor, Faculty of Agriculture,
- 2000 - - 大阪府立大学 教授
- 2000 - - Prefecture, Graduate School of Agriculture
- 1990 - 1992 Osaka University
- 1990 - 1992 Assistant Professor, Faculty of Dentistry,
- 1981 - 1990 Osaka University
- 1981 - 1990 Research Assistant, Faculty of Dentistry,
- University
- and Bidogical Sciences, Osaka Prefecture
- Osaka Prefecture University
- Osaka University
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