When Sekiryo took over Nintendo, he was in charge of Japan's largest card maker. In 1933, Sekiryo established a joint-venture company, and renamed it Yamauchi Nintendo and Co. In 1947, he established a distribution company, Marufuku Company Limited.
Retirement and death
In 1949, Sekiryo retired after suffering a stroke, and he died from complications soon afterward. His grandson Hiroshi Yamauchi took over the business. Hiroshi Yamauchi's father did not take over the company because he had abandoned his son and wife, Kimi.