How many movies have Shingo Ishikawa and Takaaki Yamashita collaborated on?

They have worked on 3 movies together! Their first movie together was Coo of The Far Seas (1993) while their highest rated movie together was Interstella 5555: The 5tory of the 5ecret 5tar 5ystem (2003). They have not worked together since Interstella 5555: The 5tory of the 5ecret 5tar 5ystem (2003). They are most known for their animation films together.