How many movies have Akiji Kobayashi and Ryūnosuke Kaneda acted in together?

They have worked on 3 movies together! Their first movie together was Mysterious Thirteen Nights: Chapter 5 - The Mystery of the Skull Wife (1971) while their highest rated movie together was The Inugamis (1976). They have not worked together since The Black Hood (1981). They are most known for their horror films together.