How many movies have Shigeru Chiba and Shinsaku Kozuma collaborated on?

They have worked on 2 movies together! Their first movie together was Urusei Yatsura: Only You (1983) while their highest rated movie together was Yu Yu Hakusho: Poltergeist Report (1994). They have not worked together since Yu Yu Hakusho: Poltergeist Report (1994).