Japan has a storied history of technical wizardry, but even then Yoshiro Nakamatsu stands a cut above. Better known as Dr. NakaMats, he's a celebrity inventor who's claimed to hold over 4,000 patents, which would be a world record. He's known for his loopy, goofball demeanour, which makes him something of a cross between Nikola Tesla and Willy Wonka. Dr. NakaMats celebrated his 84th birthday on June 26.