How many movies have Minoru Hata and Tadashi Nakamura collaborated on?

They have worked on 3 movies together! Their first movie together was Swedish Porno: Desire First Sex Experience (1971) while their highest rated movie together was Swedish Porno: Forest of Beastly Desire (1971). They have not worked together since Swedish Porno: The Writhing Beast (1972). They are most known for their drama films together.