How many movies have Naotoshi Shida and Shinichi Fukumitsu collaborated on?

They have worked on 8 movies together! Their first movie together was Dragon Ball Z: The Tree of Might (1990) while their highest rated movie together was Dragon Ball Z: The History of Trunks (1993). They have not worked together since One Piece: Chopper's Kingdom on the Island of Strange Animals (2002). They are most known for their animation films together.