How many movies have Hiroshi Ookawa and Hiroyuki Ôta collaborated on?

They have worked on 3 movies together! Their first movie together was Cyborg 009 (1966) while their highest rated movie together was The Young Eagles of the Kamikaze (1968). They have not worked together since The Young Eagles of the Kamikaze (1968). They are most known for their science fiction films together.