How many movies have Issei Futamata and Tadashi Katayama collaborated on?

They have worked on 3 movies together! Their first movie together was Golgo 13: The Professional (1983) while their highest rated movie together was Urusei Yatsura: Beautiful Dreamer (1984). They have not worked together since Urusei Yatsura: Remember My Love (1985). They are most known for their animation films together.