How many movies have Joji Yanami and Shinichi Fukumitsu collaborated on?

They have worked on 6 movies together! Their first movie together was Dragon Ball: Curse of the Blood Rubies (1986) while their highest rated movie together was Dragon Ball Z: The History of Trunks (1993). They have not worked together since Dragon Ball Z: Fusion Reborn (1995). They are most known for their action films together.