How many movies have Fujiko F. Fujio and Toshiyuki Umeda collaborated on?

They have worked on 5 movies together! Their first movie together was Doraemon: Nobita and the Spiral City (1997) while their highest rated movie together was Doraemon: Nobita and the Legend of the Sun King (2000). They have not worked together since Doraemon: Nobita and the Windmasters (2003). They are most known for their science fiction films together.