How many movies have Masaaki Hanai and Toshio Furukawa collaborated on?

They have worked on 5 movies together! Their first movie together was Call of the Wild: Howl, Buck (1981) and was their highest rated movie together. They have not worked together since Fist of the North Star - TV Compilation 1 - Yuria, Forever... and Farewell Shin!! (1986). They are most known for their animation films together.