Ringer Hut Co., Ltd. engages in the operation of restaurant chains serving Japanese food. It operates through the following segments: Nagasaki Champon, Tonkatsu, and Facility Maintenance. The Nagasaki Champon segment manages the specialty store chain Nagasaki Champon. The Tonkatsu segment handles the specialty store Tonkatsu. The Facility Maintenance segment deals with the maintenance of group restaurants. The company was founded by Go Yonehama on July 22, 1962 and is headquartered in Tokyo, Japan.