How many movies have Koichi Yamadera and Toshio Henmi collaborated on?

They have worked on 13 movies together! Their first movie together was Run, Melos! (1992) while their highest rated movie together was Professor Layton and the Eternal Diva (2009). They have not worked together since Pokémon the Movie: I Choose You! (2017). They are most known for their animation films together.