Patents by Inventor Takeshi Shamoto

Takeshi Shamoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • LED light-emitting device and indicator provided with the LED light emitting device
    Patent number: 9101029
    Abstract: A first LED emits visible light of an emission color such that with respect to a CIE(1976)L*u*v* color space chromaticity diagram, the chromaticity is exterior to a prescribed white light region wherein the absolute value of a deviation duv from the blackbody radiation locus is at most 0.02 and the color temperature is within a range of from 2,500K to 10,000K, and the deviation duv from the blackbody radiation locus is larger than 0.02, and a second LED emits visible light of an emission color such that with respect to the above chromaticity diagram, the chromaticity is exterior to the prescribed white light region, and the deviation duv from the blackbody radiation locus is smaller than ?0.02.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: August 4, 2015
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takeshi Shamoto, Akeo Kasaukura, Toru Takeda