- 2006 - 2008 Hokkaido Tokai University
- 2006 - 2008 学校法人東海大学 評議員
- 2006 - 2008 Hokkaido Tokai University,Chancellor
- 2006 - 2008 Tokai University ,councilor
- 2003 - 2007 北海道東海大学地域連携研究センター 所長
- 2003 - 2007 Research Center for Regional Cooperation in Hokkaido
- 1989 - 2007 北海道東海大学夕張バイオ試験農場 農場長
- 1989 - 2007 Hokkaido Tokai University Experimental Farm Station
- 1988 - 2007 Hokkaido Tokai University School of Engineering, Department of Bioscience and Technology
- 1988 - 2005 Department of Bioscience and Technology,
- 1996 - 2004 Hokkaido Tokai University Environmental Research Institute
- 1996 - 2004 Environmental Research Institute of Hokkaido Tokai
- 1988 - 1991 科学技術振興事業団創造科学推進事業
- 1988 - 1991 Group Leader, Plant Ecochemicals Project,
- 1988 - 1988 Department of Agricultural Chemistry, Faculty
- 1988 - - 北海道大学農学部農芸化学科 助教授
- 1969 - 1987 Hokkaido University Faculty of Agriculture
- 1969 - 1987 Department of Agricultural Chemistry,
- 1975 - 1977 米国カリフォルニア大学(バークレー校) 博士研究員
- 1975 - 1977 University of California(Berkeley),
- 「植物情報物質プロジェクト」 グループリーダー
- Tokai University,Director
- University,Director
- in Yubari,Director
- University, Professor
- School of Engineering, Hokkaido Tokai
- ERATO, JST
- Professor
- of Agriculture, Hokkaido University, Associate
- Postdoctoral Fellow
- Instructor
- Faculty of Agriculture, Hokkaido University,