How many movies have Akio Jissoji and Hiroko Sakurai collaborated on?

They have worked on 5 movies together! Their first movie together was ウルトラマン前夜祭 ウルトラマン誕生 (1966) and was their highest rated movie together. They have not worked together since Akio Jissoji's Ultraman (1979). They are most known for their drama films together.