How many movies have Matsusaku Kato and Nagatoshi Sakamoto collaborated on?

They have worked on 2 movies together! Their first movie together was Joshidaisei: Kairaku Ayame-ryô (1980) and was their highest rated movie together. They have not worked together since Uno Koichiro no Shûdôin Fuzoku Joshi-ryô (1981).