Disney doesnt want Deadmau5 to be able to trademark his iconic mouse logo because its too similar to Mickey Mouse. TMZ reports that Disney has filed to block Deadmau5s trademark in the US, which the electronic musician otherwise known as Joel Zimmerman applied for last year. According to his attorney, he has trademarked the design in over 30 countries including the UK, Japan, and Germany. The logo appears on Deadmau5s record artwork and, more notoriously, is the basis of the large helmet he wears during every performance.