Takemitsu Takizaki is the founder of Keyence, a supplier of sensors and electronic components for factory automation systems.
He stepped down as chairman in March 2015 but remains on the board of directors and is honorary chairman.
Sales to customers outside of Japan have grown steadily and account for more than 60% of revenue.
Customers include auto parts makers, electronics firms and food packagers.
In 2022, Takizaki donated shares worth nearly $3 billion to his foundation.
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