How many movies have Akira Kamiya and Chiharu Sato collaborated on?

They have worked on 4 movies together! Their first movie together was City Hunter: .357 Magnum (1989) while their highest rated movie together was Case Closed: Countdown to Heaven (2001). They have not worked together since Detective Conan: Crossroad in the Ancient Capital (2003). They are most known for their animation films together.