How many movies have Mayumi Tanaka and Shinichi Fukumitsu collaborated on?

They have worked on 9 movies together! Their first movie together was Dragon Ball: Sleeping Princess in Devil's Castle (1987) while their highest rated movie together was Dragon Ball Z: The History of Trunks (1993). They have not worked together since One Piece: Dead End Adventure (2003). They are most known for their animation films together.