How many movies have Sekiharu Sumi and Yoshio Yoshida collaborated on?

They have worked on 9 movies together! Their first movie together was Lofty Ambitions (1957) while their highest rated movie together was The Yagyu Military Art: The One-Eyed Ninja (1963). They have not worked together since The Yagyu Military Art: The One-Eyed Ninja (1963). They are most known for their drama films together.