- 1972 - 1987 Wakayama University Faculty of Education
- 1972 - 1987 Faculty of Education, Wakayama University, Associate Professor
- 1971 - 1972 Wakayama University Faculty of Education
- 1971 - 1972 Faculty of Education, Wakayama University, Assitant Professor
- 1970 - 1971 Wakayama University Faculty of Education
- 1970 - 1971 Faculty of Education, Wakayama University, Research Associate
- 1967 - 1970 Wakayama University Faculty of Education
- 1967 - 1970 Faculty of Education, Wakayama University Administration Officer
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