- 2017/04 - 2022/03 Ritsumeikan University College of Information Science and Engineering Specially Appointed Professor
- 2004/04/01 - 2017/03/31 Professor, College of Information Science and Engineering
- 2003/04/01 - Professor, Graduate School of Language Education and Information Science
- 1998/04/01 - 2003/03/31 Professor, Faculty of Economics
- 1989/08/01 - 1998/03/31 Associate Professor, Department of Humanities & Social Engineering, Toyohashi University of Technology
- 1985/05/01 - 1989/07/31 Lecturer, Department of HUmanities and Social Engineering, Toyohashi University of Technology
- 1981/12/01 - 1985/04/30 Assistant, Department of Humanities and Social Engineering, Toyohashi University of Technology
- 1978/09/01 - 1981/11/30 Instructor, Nagoya International College
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Computer Assisted Language Instruction Consortium (CALICO)
, The Japan Association for Language Teaching (JALT)
, Japan Association of College English Teachers (JACET)
, Japan Association for Language Education and Technology(LET)
, The Communication Association of Japan (CAJ)
, Teachers of English to Speakers of Other Languages (TESOL)
, European Computer Assisted Language Learning Association (EuroCALL)
, Asia Pacific Association for Computer Assisted Language Learning (APACALL)
, Community for Innovation of Education and learning through Computers and communication networks (CIEC)