Taketani Mitsuo was a prominent Japanese theoretical physicist and Marxist intellectual. He published his Doctrine of the Three Stages of Scientific Development in 1936. This was the first Japanese contribution to the philosophy of science.
He was jailed in 1938 following making contributions to the Marxist journal Sekai Bunka. However, following the intervention of Yoshio Nishina, he was released into the custody of his professor, Hideki Yukawa.