How many movies have Kazuhiko Kato and Osamu Dezaki collaborated on?

They have worked on 6 movies together! Their first movie together was Botchan (1980) while their highest rated movie together was Lupin the Third: Bye Bye, Lady Liberty (1989). They have not worked together since Lupin the Third: The Pursuit of Harimao's Treasure (1995). They are most known for their animation films together.