During World War II, he worked for Riken as an executive in the Riken Konzern. After the Riken Konzern was disbanded, he began to study the history of ceramics. While publishing works on ceramics, he primarily published under the names of , or . Ōkōchi supervised the opening of the Kakiden Gallery in 1978. He served as the president of the Japan Ceramics Association from 1984, succeeding Kō Segawa, until his death in 1990.
