Shigeru Inaba

Showa Jisho Co., Ltd. operates as a real estate agency. It engages in rental, leasing, sales, brokerage, management, and development of properties. The firm's activities also include real estate investment and acquisition, and building management services. The company was founded in September 1961 and is headquartered in Tokyo, Japan.

Sumitomo Mitsui Banking Corp. engages in the provision of financial services centered on banking. It operates through the following business segments: Wholesale, Retail, International, Market Sales, and Headquarters Management. The Wholesale segment covers business for customers of large and medium-sized companies in Japan. The Retail segment handles business for domestic individuals and SME customers. The International segment comprises of business for overseas Japanese and non-Japanese companies. The Market Sales segment corresponds to financial market business. The Headquarters Management segment includes all other businesses not covered by other segments. The company was founded in April 2001 and is headquartered in Tokyo, Japan.

Mt. Fuji Springs Inc. manufactures, distributes and exports mineral water. The company was founded in November 2010 and is headquartered in Tokyo, Japan.

Tokushukai Ltd. operates a chain of hospitals. It provides general medical and surgical services. The firm also manages clinics, visiting nurse stations, home-nursing aid centers, senior citizen health facilities, and special nursing homes for senior citizens. The company was founded by Tarao Tokuda in January 1975 and is headquartered in Tokyo, Japan.