- 1999 - 2003 Akita Prefectural University Faculty of Bioresource Sciences
- 1999 - 2001 Faculty of Bioresource Sciences, Akita
- 1980 - 1998 Hokkaido University School of Science
- 1980 - 1998 Faculty of Science, Hokkaido University,
- 1998 - - 北海道大学 名誉教授
- 1998 - - Hokkaido University, Professor Emeritus
- 1966 - 1980 Hokkaido University School of Science
- 1966 - 1980 Faculty of Science, Hokkaido University,
- 1962 - 1966 Hokkaido University School of Science
- 1962 - 1966 Faculty of Science, Hokkaido University,
- Prefectural University, Professor
- Professor
- Assistant Professor
- Research Assistant
Show all