How many movies have Denjirō Ōkōchi and Hideo Nakamura acted in together?

They have worked on 6 movies together! Their first movie together was Chuji's Travel Diary: Story of Bloody Shinshu (1927) while their highest rated movie together was Chuji's Travel Diary: The Chuji Patrol Episode (1927). They have not worked together since Jirokichi the Rat-Kid: Edo Reel Part 2 (1933).