How many movies have Seiji Suzuki and Yukiyoshi Itokawa collaborated on?

They have worked on 20 movies together! Their first movie together was Lupin the Third: Bye Bye, Lady Liberty (1989) while their highest rated movie together was Go! Anpanman: Apple Boy and Everyone's Hope (2014). They have not worked together since Go! Anpanman: Dororin and the Transformation Carnival (2022). They are most known for their animation films together.