How many movies have Hiroshi Ôtake and Toshiki Inoue collaborated on?

They have worked on 3 movies together! Their first movie together was Dr. Slump: Hoyoyo! Space Adventure (1982) while their highest rated movie together was Death Note Relight 2: L's Successors (2009). They have not worked together since Death Note Relight 2: L's Successors (2009). They are most known for their animation films together.