- 1988 - 2004 University of Tsukuba Institute of Philosophy
- 1988 - 2004 Professor, Faculty of Philosophy and ldeas,
- 2004 - - 八洲学園大学生涯学習学部 教授
- 2004 - - Professor, Faculty of Lilelong Education Yashima
- 1981 - 1988 University of Tsukuba Institute of Philosophy
- 1981 - 1988 Assistant Professor, Faculty of Philosophy and
- 1980 - 1981 Asia University
- 1980 - 1981 Professor, Faculty of general culture,
- 1973 - 1980 Asia University
- 1973 - 1980 Assistant Professor, Faculty of general culture,
- 1970 - 1973 Asia University
- 1970 - 1973 Lecturer, Faculty of general culture,
- Gakuen Uni
- University of Tsukuba
- ldeas, University of Tsukuba
- Asia University
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筑波大学哲学・思想学会
, 日本家庭教育学会
, 日本ディルタイ協会
, 比較思想学会
, 日本哲学会
, 日本倫理学会
, University of Tsukuba Philosophical Association
, The Home Education Society of Japan
, The Japan Society of Dithey (Dilthey Gesellschaft in Japan)
, The Japanese Society for Ethics