- 2016/04 - 現在 National Agriculture and Food Research Organization Food Research Institute Director-General
- 2013/04 - 2016/03 National Food Research Institute, NARO Food Engineering Division Director of Food Engineering Division
- 2009/10 - 2013/03 National Food Research Institute, NARO Head of Plannning and Promotion Section
- 2006/04 - 2009/09 National Food Research Institute, NARO Head of Reaction and Separation Engineering Laboratory
- 2002/10 - 2006/03 Food Research Institute Head of Reaction and Separation Engineering Laboratory
- 2000/11 - 2002/09 International Research Division, Agriculture, Forestry and Fisheries Research Counsil Secretariat, MAFF dupty director
- 1999/10 - 2000/10 Agriculture, Forestry and Fisheries Research Counsil Secretariat, MAFF reserach coordinator
- 1995/04 - 1999/09 Food Engineering Division, National Food Research Institute, MAFF senior researcher
- 1993/03 - 1995/03 Natioanl Center for Agricultural Utilization Research, ARS, USDA visiting researcher
- 1984/04 - 1993/03 Food Engineering Division, National Food Research Institute, MAFF researcher