How many movies have Tomomichi Nishimura and Tomonori Kogawa collaborated on?

They have worked on 2 movies together! Their first movie together was Heavy Metal L-Gaim I: Pentagona Window + Lady Gavlet (1986) and was their highest rated movie together. They have not worked together since Heavy Metal L-Gaim II: Farewell My Lovely + Pentagona Dolls (1987).