How many movies have Akio Takami and Yoshitaka Kohno collaborated on?

They have worked on 4 movies together! Their first movie together was M.D. Geist (1986) while their highest rated movie together was Ultraman: The Adventure Begins (1987). They have not worked together since Martian Successor Nadesico: The Motion Picture - Prince of Darkness (1998). They are most known for their science fiction films together.