How many movies have Isao Yamagata and Shintarō Kawasaki collaborated on?

They have worked on 24 movies together! Their first movie together was Virtue in Spades (1956) while their highest rated movie together was Shimizu Port of Chivalry (1957). They have not worked together since 20 Duels of Young Shingo - Conclusion (1963). They are most known for their drama films together.