How many movies have Takeshi Koike and Yuzo Sato collaborated on?

They have worked on 6 movies together! Their first movie together was Urusei Yatsura: Always My Darling (1991) while their highest rated movie together was Cardcaptor Sakura: The Sealed Card (2000). They have not worked together since WXIII: Patlabor The Movie 3 (2002). They are most known for their animation films together.