How many movies have Sawako Yamamoto and Tooru Yoshida collaborated on?

They have worked on 4 movies together! Their first movie together was Mobile Suit Gundam 0083: Afterglow of Zeon (1992) while their highest rated movie together was Doraemon: Nobita's Dinosaur (2006). They have not worked together since Doraemon: Nobita's Dinosaur (2006). They are most known for their animation films together.