How many movies have Joji Yanami and Kiyotoshi Aoi collaborated on?

They have worked on 3 movies together! Their first movie together was Birth: A War of Two Worlds (1984) while their highest rated movie together was Dragon Ball: Curse of the Blood Rubies (1986). They have not worked together since Dragon Ball Z: Battle of Gods (2013). They are most known for their science fiction films together.