How many movies have Katsuhiro Aoki and Masashi Inayoshi collaborated on?

They have worked on 3 movies together! Their first movie together was Crowded Commuter Train Mass Groping (1988) while their highest rated movie together was Chikan Densha: Yawarakai Hada (1990). They have not worked together since Sensual Apartment Complex: Abnormal Wife in Agony (1992).