Tokyo Univeristy (1981)
Mitsui Memorial Hospital, General Surgery Residency (1982-1986)
Tokyo University, Cardiothoracic Surgery (1986-1987)
National Cancer Center Hospital, Thoracic Surgery, Chief Residency (1987-1988)
National Cancer Center Hospital, Thoracic Surgery, Staff Surgeon (1988-2002)
Shizuoka Cancer Center, Thoracic Surgery, Chief (2002-2012)
Kyorin University, General Thoracic Surgery, Professor (2012-)
Thoracic Oncology