Y asumitsu Shigeta is a self-made Japanese billionaire who built his fortune in the mobile phone and technology distribution industry. He is the founder and chairman of Hikari Tsushin, a major Japanese technology and office equipment distributor. He founded the company in 1988 and achieved massive success in the 1990s as a major distributor of mobile phones, famously offering free handsets to sign up new subscribers for the mobile carriers.

During the peak of the dot-com bubble, he became, for a brief time, one of the richest people in the world, with a fortune that surpassed that of Bill Gates on paper. However, his wealth was decimated when the bubble burst in 2000, and his company's stock price collapsed by over 99%. He has since orchestrated a remarkable comeback, restructuring his company and rebuilding his fortune. Hikari Tsushin is now a diversified business with interests in office equipment, insurance, and other business services. His dramatic rise, fall, and recovery is a legendary story in Japanese business.