In the boom of ninkyo (men of chivalry) films which became the new mainstream at Toei after the late 1960s, he produced several yakuza (Japanese gangster) films including "Nippon Ankokushi, Chi no Koso" (Japanese dark history, bloody conflicts, 1967) and "Nippon Ankokushi, Nasakemuyo" (Japanese dark history, relentless fight, 1968).
60年代後半から東映の新たな主流路線となった任侠ものでも、『日本暗黒史・血の抗争』（1967年）、『日本暗黒史・情無用』（1968年）のやくざ映画を手がけた。