Background
Kaoru Ota was born in 1912 in Okayama, Japan.
Kaoru Ota was born in 1912 in Okayama, Japan.
He graduated from Osaka University.
He joined Ube Nitrogen Company (1938). Then he served as chairman of the workers union (1946) and vice-chairman of Sohyo and took a prominent role in national labor circles.
He disagreed with union leader Minoru Takano on policy matters and resigned as vice-chairman (1953).