- 2018/04 - 現在 Yamagata University Faculty of Agriculture Deputy Dean
- 2010/04 - 現在 Yamagata University Faculty of Agriculture Department of Food, Life, and Environmental Sciences Professor
- 2005/04 - 現在 Iwate University The United Graduate School of Agricultural Sciences
- 2016/04 - 2018/03 Yamagata University Faculty of Agriculture Department, Major Dean
- 2005/04/01 - 2010/03/31 Yamagata University Faculty of Agriculture Department of Bioresource Engineering Professor
- 2009/04 - 2010/03 Yamagata University Faculty of Agriculture Department, Major Dean
- 2005/04 - 2010/03 Yamagata University Abolition organization Department of Bioresource Engineering Professor
- 1998/04/01 - 2005/03/31 Yamagata University Faculty of Agriculture Department of Bioresource Engineering Associate Professor (as old post name)
- 1998/04 - 2005/03 Yamagata University Abolition organization Department of Bioresource Engineering Associate Professor (as old post name)
- 1992/10 - 2005/03 Iwate University The United Graduate School of Agricultural Sciences
- 1992/03/01 - 1998/03/31 Yamagata University Faculty of Agriculture Department of Bioproduction Associate Professor (as old post name)
- 1992/03 - 1998/03 Yamagata University Abolition organization Department of Bioproduction Associate Professor (as old post name)
- 1990/01 - 1992/02 Showa University School of Pharmacy
- 1988/04 - 1989/12 三菱化成生命科学研究所 特別研究員
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