How many movies have Haruo Nakajima and Jiro Shirasaki collaborated on?

They have worked on 8 movies together! Their first movie together was King Kong vs. Godzilla (1962) while their highest rated movie together was Mothra vs. Godzilla (1964). They have not worked together since Godzilla vs. Gigan (1972). They are most known for their science fiction films together.