- 2010 - 2011 :立命館大学衣笠総合研究機構・教授
- 2010 - 2011 :The Kinugasa Research Organization, Ritsumeikan University Professor
- 2003 - 2010 :立命館大学大学院言語教育情報研究科・教授
- 2003 - 2010 :Graduate School of Language Education and Information Science, Ritsumeikan University Professor
- 2007 - 2007 :連合王国バーミンガム大学・客員研究員
- 2007 - 2007 :Center for Advance Research in English, School of English, Faculty of Arts, Birmingham University Visiting Scholar
- 1993 - 2003 :徳島大学総合科学部・教授
- 1993 - 2003 :Faculty of Integrated Arts and Sciences, University of Tokushima Professor
- 1983 - 1993 :徳島大学教養部・教授
- 1983 - 1993 :College of General Education, University of Tokushima Professor
- 1992 - 1992 :ノルウェイ王国ベルゲン大学・客員研究員
- 1992 - 1992 :連合王国バーミンガム大学文学部英語学科・客員研究員
- 1992 - 1992 :Humanistic Data Center, University of Bergen Visiting Scholar
- 1992 - 1992 :Center for Advacned Rearch in English, School of English, Faculty of Arts, Birmingham University Visiting Scholar
- 1983 - 1983 :連合王国レディング大学応用言語学センター・客員研究員
- 1983 - 1983 :Center for Applied Language Studies, Reading University Visiting Scholar
- 1975 - 1983 :徳島大学教養部・助教授
- 1975 - 1983 :College of General Education, University of Tokushima Associate Professor
- 1977 - 1977 :アメリカ言語学会夏期講座(於ハワイ大学マノア校)・客員研究員
- 1977 - 1977 :Summer Institute of Linguistic Society of America (University of Hawaii at Manoa) Visiting Scholar
- 1973 - 1975 :徳島大学教養部・講師
- 1973 - 1975 :college of General Education, University of Tokushima Lecturer
- 1971 - 1973 :徳島大学教養部・助手
- 1971 - 1973 :College of General Education, University of Tokushima Assistant
- 1970 - 1971 :徳島大学教養部・非常勤講師
- 1970 - 1971 :College of General Education, University of Tokushima Part-time Lecturer
- 1967 - 1968 :国際基督教大学教養学部・助手
- 1967 - 1968 :International Christian University Assistant
- 立命館大学 衣笠総合研究機構 衣笠総合研究機構 教授,徳島大学