- 2021/04 - 現在 農研機構 九州沖縄農業研究センター 暖地水田輪作研究領域 研究領域長
- 2020/04 - 2021/03 農研機構 九州沖縄農業研究センター水田作研究領域 研究領域長
- 2016/04 - 2020/03 National Agriculture and Food Research Organization
- 2014/04 - 2016/03 National Agriculture and Food Research Organization
- 2012/10 - 2014/03 National Agriculture and Food Research Organization
- 2010/04 - 2012/09 National Agriculture and Food Research Organization
- 2001/10 - 2010/03 National Agriculture and Food Research Organization
- 2000/04 - 2001/09 Ministry of Agriculture, Forestry and Fisheries
- 1999/09 - 2000/03 Ministry of Agriculture, Forestry and Fisheries
- 1988/10 - 1999/08 Ministry of Agriculture, Forestry and Fisheries
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