Motherboard.tv just posted a great short doc profiling the world's most prolific (and possibly most eccentric) inventor, Dr. Yoshiro Nakamatsu. If you've ever used a floppy disk, digital watch, karaoke machine, CD or DVD, or ridden in a cab (he invented the fare meter), you've got Dr. NakaMats to thank.
Dr. Nakamatsu harbors other ambitions too ... in 2005 he was awarded the Ig Nobel prize for Nutrition, for photographing and retrospectively analyzing every meal he has consumed during a period of 34 years (and counting). By the time he dies at the age of 144 (a goal he maintains with an elaborate daily ritual that rejuvenates his body and triggers his creative process), he intends to patent 6,000 inventions.
(That's 5,000 more than Thomas Edison, for those of you who are keeping track.) Here's the video: