How many movies have Shin'ya Kawai and Toshio Kobayashi collaborated on?

They have worked on 3 movies together! Their first movie together was The Yen Family (1988) while their highest rated movie together was Let's Go to the Hospital (1990). They have not worked together since Yamai wa kikara: Byôin e ikô 2 (1992). They are most known for their comedy films together.