How many movies have Masahide Shinozuka and Takuzō Kawatani collaborated on?

They have worked on 3 movies together! Their first movie together was Red Peony Gambler: Biographies of a Gambling Room (1969) while their highest rated movie together was Red Peony Gambler: Here to Kill You (1971). They have not worked together since Woman Mobsters (1974). They are most known for their drama films together.