How many movies have Fujiko F. Fujio and Katsuhiko Yamazaki collaborated on?

They have worked on 5 movies together! Their first movie together was Doraemon: Nobita's Dinosaur (1980) while their highest rated movie together was Doraemon: Nobita and the Castle of the Undersea Devil (1983). They have not worked together since Doraemon: Nobita's Great Adventure in the World of Magic (1984). They are most known for their fantasy films together.