How many movies have Yasuhide Maruyama and Yasuichiro Yamamoto collaborated on?

They have worked on 5 movies together! Their first movie together was Fist of the North Star: The Legend of the True Savior: Legend of Raoh-Chapter of Death in Love (2006) while their highest rated movie together was Detective Conan: Dimensional Sniper (2014). They have not worked together since Case Closed: The Fist of Blue Sapphire (2019). They are most known for their animation films together.