How many movies have Eiji Suganuma and Yoshiko Sakakibara collaborated on?

They have worked on 3 movies together! Their first movie together was Mobile Suit Gundam: Char's Counterattack (1988) while their highest rated movie together was Patlabor 2: The Movie (1993). They have not worked together since Patlabor 2: The Movie (1993). They are most known for their science fiction films together.