How many movies have Fujiko F. Fujio and Sachiko Chijimatsu collaborated on?

They have worked on 9 movies together! Their first movie together was Doraemon: Nobita and the Haunts of Evil (1982) while their highest rated movie together was Doraemon: Nobita and the Galaxy Super-express (1996). They have not worked together since Doraemon: Nobita in the Wan-Nyan Spacetime Odyssey (2004). They are most known for their family films together.