How many movies have Shuichi Okubo and Takashi Yanase collaborated on?

They have worked on 6 movies together! Their first movie together was Go! Anpanman: Baikinman's Counterattack (1990) and was their highest rated movie together. They have not worked together since Go! Anpanman: The Secret of Roll and Lola's Floating Castle (2002). They are most known for their family films together.