Hoshi Iryo-Sanki Co., Ltd. (7634:TYO) manufactures and sells pharmaceutical medical gases, including oxygen and nitrous oxide, and provides comprehensive medical gas supply services, home healthcare equipment rental and sales, medical gas equipment design and construction, nursing care products and welfare services, and operation of nursing facilities in Japan. The company operates through five segments: Medical Gas Related Business, offering medical oxygen gas, anesthetic gases, and other medical gases with 24-hour stable supply services to healthcare institutions; Home Medical Care Related Business, providing rentals and sales of home oxygen concentrators, continuous positive airway pressure equipment, home ventilators, and in-home oxygen therapy support; Medical Gas Equipment Construction Related Business, handling design, construction, maintenance, and inspection of medical gas piping systems; Nursing Care and Welfare Related Business, including rental and sales of care equipment, home renovations, visiting nursing, and home care support offices; and Nursing Care Facility-Related Business, managing paid nursing homes, day care facilities, and related operations. Founded in 1960 and established in 1974, Hoshi Iryo-Sanki maintains headquarters in Adachi-ku, Tokyo, employs approximately 596 people on a consolidated basis, and focuses exclusively on the Japanese market with recent operational expansions including the relocation of its Fukuoka branch and Iwate sales office in August 2025. In 2025, the company reports continued revenue growth to JPY 14.78bn on a trailing twelve-month basis, alongside announcements of interim financial results and dividend distributions, reflecting steady performance in healthcare and eldercare sectors.