Now, he and his Japanese wife live there with their four sons ... Recently, he added an architect-designed beach house to his collection, a property he says would cost a fortune on the Great ...

All five are the biggest "sogo shosha," or trading houses, in Japan that invest across diverse sectors domestically and abroad — "in a manner somewhat similar to Berkshire itself," Buffett said.

The 94-year-old investor's Berkshire Hathaway holding company raised its holdings in five Japanese trading houses — Itochu, Marubeni, Mitsubishi, Mitsui and Sumitomo — by more than 1 ...