Her father, Shojiro Ishibashi, founded the Bridgestone Corporation, the world's largest tiremaker,[1][2] in 1930.
[2] She attended middle and high school in Tokyo, during which time she met former Iichirō Hatoyama, who later became Foreign Minister.
[3] Hatoyama contributed significant amounts of her inheritance to help finance the political and career goals of both her sons.
[2] She donated billions of yen in 1996 when her two sons, Kunio and Yukio, co-founded the Democratic Party of Japan (DPJ).
[2] Hatoyama resided in a home for the elderly adjacent to St. Luke's International Hospital in Chuo, Tokyo.