HOSHI IRYO-SANKI CO., LTD. is a Japan-based company mainly engaged in the medical gas business and household medical business. The Company operates in five business segments. The Medical Gas-related segment is engaged in the sale of medical oxygen gas, anesthesia gas and other general medical gases. The Household Medical-related segment is engaged in the rental and sale of oxygen generator for home use, equipment for continuous positive pressure respiratory therapy, home respirators and others. The Medical Gas Equipment Work-related segment is engaged in the design and construction of medical gas piping works, and the maintenance and inspection of medical gas plumbing facilities. The Nursing Welfare-related segment is engaged in the rental and sale of nursing welfare-related products, housing renovation, the operation of home-visit nursing and home care support offices, and related businesses. The Facility Care-related segment is engaged in the operation of pay nursing home and others.