How many movies have Kappei Yamaguchi and Noriko Ozeki collaborated on?

They have worked on 4 movies together! Their first movie together was One Piece: Dead End Adventure (2003) while their highest rated movie together was Heart and Yummie (2010). They have not worked together since Lupin the Third vs. Detective Conan: The Movie (2013). They are most known for their animation films together.