How many movies have Masayasu Ōebara and Nobumasa Fukushima collaborated on?

They have worked on 11 movies together! Their first movie together was Coed Report: Blooming Yuko (1971) and was their highest rated movie together. They have not worked together since Sekkusu dokku: Midarana chiryō (1980). They are most known for their drama films together.