How many movies have Fumizô Tachibanaya and Nobumasa Mizunoo collaborated on?

They have worked on 4 movies together! Their first movie together was Sekkusu dokku: Midarana chiryō (1980) while their highest rated movie together was Kairaku Onsenkyô: Nyotaiburo (1981). They have not worked together since Horny Diver: Tight Shellfish (1985). They are most known for their comedy films together.