How many movies have Isao Tomita and Kow Otani collaborated on?

They have worked on 7 movies together! Their first movie together was All's Quiet on the Recruit Front (1991) while their highest rated movie together was Gamera: Guardian of the Universe (1995). They have not worked together since Godzilla, Mothra and King Ghidorah: Giant Monsters All-Out Attack (2001). They are most known for their horror films together.