How many movies have Takao Koyama and Takeo Ide collaborated on?

They have worked on 12 movies together! Their first movie together was Dragon Ball Z: The World's Strongest (1990) while their highest rated movie together was Dragon Ball Z: Bardock - The Father of Goku (1990). They have not worked together since Dragon Ball Z: Wrath of the Dragon (1995). They are most known for their action films together.