Hoshi Iryo-Sanki Co., Ltd. manufactures and sells pharmaceutical medical oxygen and nitrous oxides in Japan. It operates in five segments: Medical Gas-Related Business; Home Healthcare-Related Business; Medical Gas Equipment Construction-Related Business; Nursing-Care Related Business; and Facilities Nursing-Related Business. The Medical Gas-Related Business segment sells medical oxygen gas, anesthetic gas, and other medical gas. The Home Healthcare-Related Business segment rents oxygen concentrators for home oxygen therapy; and equipment for continuous positive airway pressure, home ventilators, etc. The Medical Gas Equipment Construction-Related Business segment designs and constructs medical gas piping construction, as well as maintenance and inspection of medical gas piping equipment. The Nursing-Care Related Business segment offers rental and sale of nursing care related products and equipment, home renovation, home-visit nursing, and in-home nursing care support services. The Facilities Nursing-Related Business segment operates fee-based nursing homes and day care facilities, as well as related operations. The company was founded in 1960 and is headquartered in Tokyo, Japan.