How many movies have Akiyo Takeda and Joji Unoguchi collaborated on?

They have worked on 9 movies together! Their first movie together was K-On! The Movie (2011) while their highest rated movie together was Sound! Euphonium: Ensemble Contest (2023). They have not worked together since Sound! Euphonium: Ensemble Contest (2023). They are most known for their animation films together.