How many movies have Koichi Hashimoto and Shigeyasu Yamauchi collaborated on?

They have worked on 3 movies together! Their first movie together was Saint Seiya: The Heated Battle of the Gods (1988) while their highest rated movie together was Saint Seiya: Legend of Crimson Youth (1988). They have not worked together since Saint Seiya Heaven Chapter: Overture (2004). They are most known for their fantasy films together.