How many movies have Kazuhiko Yamaguchi and Masahiro Kakefuda collaborated on?

They have worked on 10 movies together! Their first movie together was Oh Wonderful Utamaro! (1974) while their highest rated movie together was Which Is Stronger, Karate or the Tiger? (1976). They have not worked together since Big Magnum Kuroiwa (1985). They are most known for their action films together.