| May, 1966 | Research Associate, Tokyo Medical and Dental University (TMDU), Faculty of Dentistry, First Department of Prosthodontics |
|---|---|
| April, 1970 | Lecturer, Tsurumi University, School of Dental Medicine, Department of Prosthodontics |
| April, 1971 to March 1973 | Research Associate, University of Illinois at Chicago, Center for Craniofacial Anomalies, Maxillofacial Prosthetic Clinic |
| April, 1974 | Associate Professor, Tsurumi University, School of Dental Medicine, Department of Prosthodontics |
| June, 1979 | Professor and Director, TMDU Faculty of Dentistry, Dental Hospital, Stomatognathic Dysfunction Clinic |
| August, 1982 to July, 1985 | Principal, TMDU Faculty of Dentistry, School of Dental Technologists (Concurrent with the above positions) |
| May, 1987 | Professor, TMDU Faculty of Dentistry, Department of Stomatognathic Dysfunction |
| February, 1988 to March, 1993 | Director, TMDU Faculty of Dentistry, Dental Hospital, Dental Laboratory (Concurrent with the above position) |
| April, 1993 to March, 2002 | Director, TMDU Faculty of Dentistry, Dental Hospital (Concurrent with the above positions) |
| April, 2000 | Professor, TMDU Graduate School of Medical and Dental Sciences (Concurrent with the above positions) |
| April, 2000 to March, 2004 | Director, TMDU Faculty of Dentistry, Dental Hospital, Clinic for Persons with Disabilities (Concurrent with the above positions) |
| October, 2003 to March, 2005 | Vice President, TMDU (Concurrent with the above positions) |
| March, 2005 | Retirement from professorships in the Graduate School of Medical and Dental Sciences and the Faculty of Dentistry |
| April, 2005 | Professor Emeritus, TMDU |
| August, 2005 | Trustee, Education, TMDU (National University Corporation) |
| November, 2005 to March, 2008 | Vice President, TMDU (National University Corporation) |
| April, 2008 | President, TMDU (National University Corporation) |
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