A CD for supposedly "enhancing brightness or sexual function".A protective envelope for floppy disk (1975-1983), and a head-cleaning floppy disk (1981-1988).A condom with an embedded magnet, supposedly "improving sensitivity" as "electricity is generated in the blood vessels in the female organs by Fleming's left-hand rule"."Cerebrex" armchair, a chair that supposedly improves mental function such as calculation and thinking by cooling the head and heating the feet."PyonPyon" - Jumping shoes with leaf springs on their soles."Enerex" - System for generating hydrogen and oxygen."Magnetic record sheet" - "a method for forming signal record track comprising a number of spiral signal track loops.Juusyoku Record (or "Jūshoku Record") (重色レコード, stacked color record / dual color record) - An optical sound media which uses printed paper sheet instead of transparent film (1952).Īmong Nakamatsu's early inventions is the Shoyu Churu Churu, a siphon pump used in the home to move soy sauce from large containers to smaller vessels for cooking and serving. Nakamatsu was the subject of the 2009 documentary The Invention of Dr NakaMats. While his claim to a "world record" has been described as a record for patents by several media articles, several other sources do not list Nakamatsu among the world's most prolific inventors (he has 6 patent families). Nakamatsu is a prolific inventor, and he even claims to hold the world record for number of over 3,200 " inventions". Nakamatsu predicts that he will live until the age of 144. Nakamatsu also has an elevator in his house that he claims helps him think better, although he strictly denies that it is an elevator and describes it as a "vertical moving room". Nakamatsu claims to benefit from lack of oxygen to the brain during his dives, making inventions "0.05 seconds before death." He also claims that his "Calm Room," a bathroom constructed without nails and tiled in 24-karat gold, encourages creative thinking by blocking television and radio waves. In interviews, Nakamatsu has described his "creativity process", which includes listening to music and concludes with diving underwater, where he says he comes up with his best ideas.