Keio University (M.D. 1982)
Keio University General Surgery Residency (1982-85)
Keio University Cardiovasc. Surgery Residency (1985-89)
Staff Surgeon, Cardiovasc. Surgery, National Seiransou Hosp. (1989-90)
St. Vincent Hospital (Sydney), Cardiothoracic Surgery Fellowship (1991)
Staff Surgeon, Dept. of CV Surg., Kawasaki City Hospital (1992)
Staff Surgeon, Dept. of CV Surg., Shizuoka Red Cross Hospital (1992-97)
Staff Surgeon, Div. of CV Surg., Keio Univ. Hospital (1997-2004 )
Associate Profesor, Dept. of CV Surg, Tokai Univ. Hospital (2004-05)
Professor, Dept. of CV Surg, Tokyo Dental College Ichikawa General Hospital (2005-)
Valvular Surgery
Coronary Surgery