How many movies have Kinichi Ishikawa and Rintaro collaborated on?

They have worked on 6 movies together! Their first movie together was The Dagger of Kamui (1985) while their highest rated movie together was The Tale of Osamu Tezuka: I'm Son-Goku (1989). They have not worked together since The Tale of Osamu Tezuka: I'm Son-Goku (1989). They are most known for their animation films together.