How many movies have Kiyoshi Kobayashi and Naoto Yamaya collaborated on?

They have worked on 6 movies together! Their first movie together was Lupin the Third: Green vs Red (2008) while their highest rated movie together was Death Note Relight 2: L's Successors (2009). They have not worked together since Lupin the Third vs. Detective Conan: The Movie (2013). They are most known for their animation films together.