How many movies have Ichiro Hattori and Torao Arai collaborated on?

They have worked on 3 movies together! Their first movie together was Urusei Yatsura: Only You (1983) while their highest rated movie together was Ziggy: Soreyuke! R&R Band (1991). They have not worked together since Ziggy: Soreyuke! R&R Band (1991). They are most known for their animation films together.