- 2017/04 - 現在 Utsunomiya University Professor emeritus
- 1994/10 - 2017/03 Utsunomiya University The Faculty of International Studies Professor
- 1993/06 - 1994/09 Utsunomiya University
- 1993 - 1994 The Faculty of General Education, Utsunomiya University,Professor
- 1994 - - The Faculty of International Studies, Utsunomiya University, Professor
- 1987/07 - 1993/06 文部省 初等中等教育局 教科書調査官
- 1987 - 1993 The Ministry of Education, Culture and Science,
- 1985/10 - 1987/06 文部省初等中等教育局教科書検定課専門職員
- 1985 - 1987 The Ministry of Education, Culture and Science,
- 1985/09 - 1985/09 National Institute of Technology, Fukushima College Department of General Education
- 1982/04 - 1985/09 National Institute of Technology, Fukushima College Department of General Education
- 1982 - 1985 Fukushima National College of Technology, Lecturer
- 1985 - Fukushima National College of Technology, Assistant Professor
- Examiner for Textbook Education
- Special Staff of Textbook Examination
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韓国・朝鮮文化研究会
, 韓国文化歴史地理学会
, 大韓地理学会
, 朝鮮学会
, 人文地理学会
, 日本地理学会
, Society of Korean Cultural Studies
, The Association of Korean Cultural and Historical Geographers
, The Korean Geographical Society
, Society of East Asian Area Studies
, The Academic Association of Koreanology in Japan
, The Human Geographical Society of Japan
, The Association of Japanese Gepgraphers