Tōichi Katō (加藤 東一, Katō Tōichi; 6 January 1916 – 3 December 1996) was a Japanese painter in the Nihonga style and board chairman of the Nitten, a significant Japanese art conference. He and his older brother, Eizō Katō, have a museum dedicated to their works in Gifu, Gifu Prefecture.
Source: “Tōichi Katō”, English Wikipedia (CC BY-SA 4.0), excerpt