How many movies have Ken Baba and Yoshinobu Michihata collaborated on?

They have worked on 5 movies together! Their first movie together was Lupin the Third: Farewell to Nostradamus (1995) while their highest rated movie together was Go! Anpanman: Tears of the Mermaid Princess (2000). They have not worked together since The Cat Returns (2002). They are most known for their animation films together.