- - 2002 Tohoku University
- - 2002 Tohoku University Graduate School, Division of Letters Linguistics Japanese
- - 1997 Tohoku University
- - 1997 Tohoku University Graduate School, Division of International Culture International Culture Community
- - 1992 Miyagi University of Education
- - 1992 Miyagi University of Education Graduate School, Division of Education Japanese Teaching
- - 1974 Waseda University School of Humanities and Social Sciences
- - 1974 Waseda University Faculty of Literature Human Science course
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