Kakuzo Kawamoto was born in Takashima District, Shiga on March 27, 1917.
[1] In 1946, he founded Yamashiro Orimono (later, Ayaha Corporation [ja]) and became the president.
[1] He assumed the position of Director General of National Land Agency [ja] (国土庁 Kokudo-chō) and Director General of Hokkaido Development Agency [ja] (北海道開発庁 Hokkaidō-kaihatsu-chō) of the first reshuffled cabinet in the second Nakasone's cabinet in 1984.
[1][6] In 1980, his son, Hidenori Kawamoto who has served as the president of Ayaha Corporation, the chairperson of Ayaha High School, the vice chairperson of Ōtsu Chamber of Commerce and Industry, the chairperson of Shiga Sport Association and so on,[7][8] established Public-interest Incorporated Foundation "Kawamoto Promotion Association for Educational Welfare" ("河本文教福祉振興会") for the purpose of contributing to the sound upbringing of children and youth in Shiga Prefecture according to the suggestion and benevolence of Kakuzo Kawamoto by donating his personal fortune.
[9] His grandmother, Niwa Kawamoto (1863 - 1976) used to be the world's top person for longevity.