How many movies have Katsumi Koide and Toshiaki Imaizumi collaborated on?

They have worked on 3 movies together! Their first movie together was They Were Eleven (1986) while their highest rated movie together was Urusei Yatsura: Inaba the Dreammaker (1987). They have not worked together since Urusei Yatsura: Inaba the Dreammaker (1987). They are most known for their animation films together.