TOKYO Masayoshi Son, the charismatic leader of Japanese tech giant SoftBank Group, must wake up sometimes wondering which country he's in. More often than not, it's the U.S., in Silicon Valley, where he has a house.
His private jet, in which he zips around the globe, has flown to the U.S. west coast repeatedly in the almost 100 days since May 20, when SoftBank and its partners, including Saudi Arabia, launched the $100 billion SoftBank Vision Fund.
