- 1992 - 2004 University of Tsukuba Institute of Clinical Medicine
- 1992 - 2004 Department of Oral and Maxillofacial Surgery, Institute of Clinical Medicina, University ofTsukuba, Professor
- 2004 - - 筑波大学大学院人間総合科学研究科機能制御医学専攻顎口腔外科学
- 2004 - - Oral and Maxillofacial Surgery, Functional and Regulatory Medical Sciences, Graduate School of Comprehenseive Human Sciences, University of Tsukuba
- 1980 - 1992 Showa University School of Dentistry
- 1980 - 1992 First Department of Oral and Maxillofacial Surgery, School of Dentistry, Showa University, Associate Professor
- 1977 - 1979 Showa University School of Dentistry
- 1977 - 1979 First Department of Oral and Maxillofacial Surgery, School of Dentistry, Showa University, Assistant Professor
- 1974 - 1977 Tokyo Medical and Dental University Faculty of Dentistry
- 1974 - 1977 First Deoartment of Oral Surgery, School of Dentisrty, Tokyo Medical and Dental University, Staff
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日本頭頸部癌学会
, 日本有病者歯科医療学会
, アジア口腔外科学会
, 国際口腔外科学会
, 日本口腔診断学会
, 日本顎関節学会
, 日本口腔腫瘍学会
, 日本顎変形症学会
, 日本口蓋裂学会
, 日本歯科薬物療法学会
, 日本口腔科学会
, 日本口腔外科学会
, Japan Society for head and Neck Cancer
, Japanese Society of Dentistry for Medically Compromised Patient
, Asian Association of Oral and Maxillofacial Surgeons
, International Association of Oral and Maxillofacial Surgeons
, Japanese Society of Oral Diagnosis/Oral MEdicine
, Japanese Society for the Temporomandibular Joint
, Japanese Society for Orar Tumors
, Japanese Society for Jaw Deformities
, Japanese Cleft Palate Association
, Japanese Society of Oral Therapeutics and Pharmacology
, The Japanese Stomatological Society
, Japanese Society of Oral & Maxillofacial Surgeons