How many movies have Jiro Kuwata and Shintaro Nakaoka collaborated on?

They have worked on 2 movies together! Their first movie together was Maboroshi Tantei: Kyōfu No Uchūjin (1960) and was their highest rated movie together. They have not worked together since まぼろし探偵　幽霊塔の大魔術団 (1960).