How many movies have Fujiko F. Fujio and Jun Ikeda collaborated on?

They have worked on 6 movies together! Their first movie together was Doraemon: Nobita and the Steel Troops (1986) while their highest rated movie together was Doraemon: The Record of Nobita's Parallel Journey to the West (1988). They have not worked together since Doraemon: Nobita and the New Steel Troops: Winged Angels (2011). They are most known for their science fiction films together.