Masayoshi Son, born August 11, 1957 in Tosu, Saga Prefecture, Japan, is a Korean-Japanese businessman - whose grandfather came from Korea to Japan - and the founder and current chief executive officer of SoftBank Capital, and the chief executive officer of SoftBank Mobile.
At age 16, Son moved to California and finished high school while staying with friends and family in South San Francisco. He then enrolled at University of California, Berkeley in which he majored in economics and took some computer science courses.
Enamoured by a microchip featured in a magazine, Son at age 19 became confident that computer technology would ignite the next commercial revolution
Convinced that anything related to microchips could yield a fortune, Son decided to produce at least one entrepreneurial idea a day.
He patented a translating device that he eventually sold to Sharp Electronics for $1 million.
In 2011 he pledged $120 million dollars and his remaining salary until retirement to support Japan's earthquake disaster.
His net worth is in the billions.