How many movies have Kazuo Takano and Shin'ichi Ôoka collaborated on?

They have worked on 7 movies together! Their first movie together was Skyscraper Hunting (1991) while their highest rated movie together was Ultraman Zearth (1996). They have not worked together since Ultraman Cosmos vs. Ultraman Justice: The Final Battle (2003). They are most known for their science fiction films together.