Hironori Yamamoto is a Japanese gastroenterologist and academic best known for inventing double-balloon enteroscopy (DBE), a technique that enables detailed visualization and treatment of the small intestine by endoscopy.

He later joined the university as a faculty member, focusing his research and clinical efforts on improving endoscopic techniques.

[1] Dr. Yamamoto is also recognized for his contributions to endoscopic submucosal dissection (ESD) techniques, which are used to remove gastrointestinal tumors.

Dr. Yamamoto has published extensively in peer-reviewed journals and co-authored the book Double-Balloon Endoscopy: Theory and Practice, which provides a detailed guide to the DBE technique.

His pioneering work with DBE has been widely adopted worldwide and remains a critical tool in gastrointestinal endoscopy.