How many movies have Kunio Kaga and Masamitsu Igayama collaborated on?

They have worked on 8 movies together! Their first movie together was Travels of Lord Mito Pt.4 (1954) while their highest rated movie together was Travels of Lord Mito Pt.5 (1954). They have not worked together since Travels of Lord Mito Pt.10: Demon Naruto (1956).