Takemitsu Takizaki

Chairman & founder

Newly retired, Takizaki, 70, helped to invent the precision sensors used in Toyota car assembly lines and went on to quietly build up Keyence, his publicly-traded factory-automation company, over the last four decades. Known for its deep focus on R&D, the firm owns numerous technology patents, and is known to attract the brightest minds with performance-based pay packages. 

Company:

Keyence

Net worth:

US$8.6 billion