How many movies have Fumiyasu Saito and Tsutomu Shibayama collaborated on?

They have worked on 14 movies together! Their first movie together was Doraemon: Nobita and the Steel Troops (1986) while their highest rated movie together was Doraemon: Nobita and the Galaxy Super-express (1996). They have not worked together since Doraemon: Nobita and the Winged Braves (2001). They are most known for their animation films together.