Number one is no other then Nintendo’s, no retired, chairman Hiroshi Yamauchi. Mr. Yamauchi is worth subtle  $7.8 billion.

Retired as Nintendo’s chairman after 55 years in 2005 just before company took off with its popular Wii videogame console, which is outselling rival offerings Sony’s PlayStation and Microsoft’s Xbox. Also scored with its handheld gaming devices. Net income jumped 48% to $2.5 billion. Rarely photographed, Yamauchi is still a big shareholder.