（As of July, 2019）
Professor & Chairman, Digestive Diseases Center, Showa Univ. Koto Toyosu Hospital
Professor, Dept. of Innovative
Interventional Endoscopy Research,The Jikei Univ. School of Medicine
Professor & Director, Dept. of Endoscopy, Hiroshima Univ. Hospital / Professor, Endoscopy and Medicine, Graduate School of Biomedical & Health Sciences, Hiroshima Univ.
Professor & Director, Dept. of Gastrointestinal Endoscopy, Endoscopy Center, Tokyo Medical Univ. Hospital
Professor, International Univ. of Health and Welfare Graduate School
Professor & Chairman, Dept. of Gastroenterology and Hematology, Hirosaki Univ. Graduate School of Medicine
Director, Itami City Hospital
Professor, Division of Gastroenterology and Hepatology, Toho Univ. Omori Medical Center
Professor, Dept. of Gastroenterology, Fujita Health Univ. Bantane Hospital
Professor & Chairman, Dept. of Gastroenterology, Dokkyo Medical Univ. School of Medicine
Professor & Chairman, Dept. of Gastroenterology, Fukuoka Univ. Chikushi Hospital
Professor & Director, Center for Diagnostic and Therapeutic Endoscopy, Keio Univ. School of Medicine
Director, National Hospital Organization Hakodate National Hospital
Professor, Dept. of Internal Medicine, Division of Gastroenterology, Kawasaki Medical School
Professor, Osaka Medical College
Director, Miyagi Medical Check-up Plaza
Professor, Dept. of Internal Medicine, Division of Gastroenterology, Iwate Medical Univ.
Professor & Chairman, Dept.of Gastroenterology, Oita Univ. Faculty of Medicine
Professor & Chairman, Dept. of Medicine, Jichi Medical Univ.
Professor & Chairman, Dept. of Gastroenterological Endoscopy, Kanazawa Medical Univ.
Professor, Division of Gastroenterology and Hepatology, Internal Medicine 3, Kansai Medical Univ.
Professor & Director, Dept. of General and Gastroenterological Surgery, Keio Univ.
Vice President, Nanasawa Rehabilitation Hospital
Chief Information Officer (CIO)&Deputy of Hospital President, Dept. of Internal Medicine, Division of Gastroenterology, Kyoto Second Red Cross Hospital