How many movies have Masamitsu Igayama and Shintarō Miyamoto collaborated on?

They have worked on 6 movies together! Their first movie together was The Phantom Cat (1956) while their highest rated movie together was Travels of Lord Mito Pt.10: Demon Naruto (1956). They have not worked together since Lion Crest Part 2 (1958). They are most known for their drama films together.