How many movies have Sachiko Chijimatsu and Tsutomu Shibayama collaborated on?

They have worked on 7 movies together! Their first movie together was Doraemon: Nobita's Great Adventure in the World of Magic (1984) 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.