How many movies have Masaru Satō and Shigeru Kōyama collaborated on?

They have worked on 17 movies together! Their first movie together was Rokujō yukiyama tsumugi (1965) while their highest rated movie together was Taikoki (1987). They have not worked together since Bloom in the Moonlight “The Story of Rentaro Taki” (1993). They are most known for their drama films together.