How many movies have Kazunori Ito and Yutaka Izubuchi collaborated on?

They have worked on 5 movies together! Their first movie together was Patlabor: The Movie (1989) while their highest rated movie together was The Next Generation Patlabor: Tokyo War: Director's Cut (2015). They have not worked together since The Next Generation Patlabor: Tokyo War: Director's Cut (2015). They are most known for their science fiction films together.