- 1977 - 1995 Hiroshima University
- 1977 - 1995 Hiroshima University, Professor
- 1995 - - 広島女学院大学 教授
- 1965 - 1977 Hiroshima University
- 1965 - 1977 Hiroshima University, Assistant Professor
- 1964 - 1965 Osaka Institute of Technology
- 1964 - 1965 The Osaka Institute of Technology, Assistant
- 1959 - 1964 Osaka Institute of Technology
- 1959 - 1964 The Osaka Institute of Technology, lecturer
- 1958 - 1959 Osaka Institute of Technology
- 1958 - 1959 The Osaka Institute of Technology, part time
- 1955 - - Hiroshima Jogakuin Uniersity, Professor
- Professor
- lecturer
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