How many movies have Kiyotoshi Aoi and Masako Nozawa collaborated on?

They have worked on 4 movies together! Their first movie together was Dragon Ball: Curse of the Blood Rubies (1986) while their highest rated movie together was Dragon Ball: The Path to Power (1996). They have not worked together since Dragon Ball Z: Battle of Gods (2013). They are most known for their animation films together.