Fumihiko Masuda

Yamada Homes Co., Ltd. engages in the real estate business. It includes contract business of detached houses and apartments, condominium; housing renovation contracts; and housing, condominiums, and commercial facilities leasing. The company was founded by Rinei Kobori on June 14, 1951 and is headquartered in Gunma, Japan.

Part of Yamada Holdings Co., Ltd., Yamada Wood House Co., Ltd. is a Japanese company that provides wood building construction and selling services. The company is based in Takasaki, Japan.

Kizuna Japan KK is a private company based in Tokyo, Japan that provides convenience to human beings and contributes to society. Kizuna Japan Co., Ltd. uses business technology housing tech smart2030 zerowa no house® smart2030 zerowa's family ® to create eternal value. The Japanese company offers the industry's first EV electric houses IoT plat home for the industry's first AI HEMS adopted AI HEMS. Kizuna Japan also offers "moist-nano bubble" beauty aqua, organic products business, and coin laundry FC deployment business. The company aims to pursue the health of people living in the housing medical study group. The company was founded by Fumihiko Masuda.