The story
Founded by Keiichiro Takahara on Feb 10, 1961.1
Unicharm traces its roots to the Taisei Kako Co., Ltd., founded by Keiichiro Takahara. Takahara's family operated a paper manufacturing business in Shikoku. After resigning in 1961 from his father's paper manufacturing company, he founded his own, Taisei Kako (Taisei Chemical Works). He then turned his attention to the manufacture and sale of wood wool cement board. Then the company in 1963 ventured to manufacture and sell sanitary napkins. The company then started selling tampons in 1974, when Unicharm Corporation was founded to separate the feminine care production from the main company.
From Wikipedia’s article on Unicharm, shared under CC BY-SA 4.0.5