- 2024/04 - 現在 Ibaraki University Department of Applied Biology Professor
- 2021/04 - 放送大学 茨城教育センター 客員教授(併任)
- 2016/04 - Ibaraki University College of Agriculture Professor
- 2016/04 - Tokyo University of Agriculture and Technology United Graduate School of Agricultural Science Professor
- 2007/04 - 2016/03 Ibaraki University College of Agriculture Associate Professor
- 2005/04/01 - 2007/03/31 Associate Professor, United Graduate School of Agricultural Science, Tokyo University
- 2004/04 - 2007/03 Ibaraki University College of Agriculture Associate Professor
- 1997/07/01 - 2004/03/31 Assistant Professor, United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology
- 2000/02 - 2004/03 Ibaraki University Gene Research Center Assistant Professor
- 2001/10 - 2002/10 Visiting Researcher, East molling, Horticulture Research International, UK
- 1996/12 - 2000/01 Ibaraki University College of Agriculture Assistant Professor
- 1995/04/01 - 1996/11/30 Post Doctoral Fellow, Plant Biotechnology Institute, Ibaraki Agricultural Center
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茨城県果樹研究会
, Japanese Society of Breeding
, 茨城県花き研究会
, American Society for Horticultural Science
, International Society for Horticultural Science
, Japanese Society for Horticultural Science