Japanese gaming firm Universal Entertainment Corporation (TYO:6425) filed a complaint alleging patent infringement and other claims against Las Vegas, NV-based entity Aruze Gaming America as well as Kazuo Okada, the founder of Universal Entertainment (UEC) and the sole shareholder and director of Aruze Gaming. The suit, filed in the District of Nevada, alleges that Okada directed patent infringing activities of Aruze while he was also an officer with UEC.