Professor of Surgery, Chief, Division of Thoracic Surgery, Keio University School of Medicine, Tokyo, Japan. Graduated from Keio University School of Medicine in 1983. Attending surgeon (Thoracic surgery, 1992-1998), Chief of Thoracic Surgery (1992-2014), and Deputy Director-Hospital (2012-2014) at the National Cancer Center Hospital, Tokyo. Professor of Surgery, Chief, Division of Thoracic Surgery, Keio University School of Medicine (2014-present). Doctor of Medical Science Degree from Keio University in 1997. IASLC activities include Chair of Staging and Prognostic Factors Committee (SPFC, 2016 – present), Executive Board Director (2012-2016), A Congress President for 18th World Conference on Lung Cancer. Vice President, Japan Lung Cancer Society.