How many movies have Akira Yoshikawa and Yuji Ohno collaborated on?

They have worked on 3 movies together! Their first movie together was One Million-Year Trip: Bander Book (1978) while their highest rated movie together was Undersea Super Train: Marine Express (1979). They have not worked together since Lupin the Third: Greatest Capers (1995). They are most known for their animation films together.