A pioneering Japanese animator and filmmaker, he gained recognition for his work in the world of animated documentaries. In 1975, he co-founded "Kinoshita Studio" with his wife, Sayoko, producing innovative films that often explored social and political themes. His notable works include "Made in Japan" (1972) and "Pica Don" (1978), which addressed the Hiroshima bombing's impact. He contributed significantly to promoting animation as an art form and co-founded the Hiroshima International Animation Festival.