- 1984 - - 日本大学教授(生産工学部)
- 1984 - - Professor, College of Industrial Technology, Nihon University
- 1975 - 1983 日本大学助教授(生産工学部)
- 1975 - 1983 Associate Professor, College of Industrial Technology, Nihon University
- 1977 - Visiting Associate Professor(Department of Metallurgy and Mining Engineering, College of Engineering, University of Illinois at Urbana-Shampaign
- 1977 - Visiting Associate Professor(Department of Metallurgy and Mining Engineering, College of Engineering, University of Illinois at Urbana-Shampaign
- 1968 - 1975 日本大学専任講師(生産工学部)
- 1968 - 1975 Assistant Professor, College of Industrial Technology, Nihon University
- 1967 - 1968 日本大学助手(生産工学部)
- 1967 - 1968 Research Associate, College of Industrial Technology, Nihon University
- 1961 - 1966 日本大学理工学部副手
- 1961 - 1966 Research Assistant, College of Science and Technology, Nihon University
- 1961 - 日本大学理工学部
- 1961 - Enter the service, College of Science and Technology, Nihon University
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