How many movies have Eiko Taki and Shintarō Katsu acted in together?

They have worked on 4 movies together! Their first movie together was Bad Reputation: The Notorious Harbor (1963) while their highest rated movie together was Hoodlum Soldier (1965). They have not worked together since Zatoichi and the Doomed Man (1965). They are most known for their action films together.