How many movies have Takashi Yanase and Tenshi Yamamoto collaborated on?

They have worked on 4 movies together! Their first movie together was Go! Anpanman: The Secret of Tsumiki Castle (1992) while their highest rated movie together was Go! Anpanman: The Flying Picture Book and the Glass Shoes (1996). 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.