How many movies have Kōji Takada and Toshio Kitagawa collaborated on?

They have worked on 12 movies together! Their first movie together was 鷹天皇飄々剣　吉野の風雲児 (1962) while their highest rated movie together was Red Peony Gambler: Execution of Duty (1972). They have not worked together since Operation Plazma in Osaka (1976). They are most known for their action films together.