Patents by Inventor Chan-Kyu Yoo

Chan-Kyu Yoo 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 lighting device
    Patent number: 9752768
    Abstract: An LED lighting device includes a case unit forming a light emitting space, wherein resting surfaces are formed at predetermined areas on the inner side of the case unit, substrates having LEDs mounted thereon and respectively rested on the plurality of resting surfaces, and heat-dissipating units formed in the outer side of the case unit for heat dissipation. Lifespan and user convenience can be improved.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: September 5, 2017
    Assignee: KMW INC.
    Inventors: Dong-Sik Roh, Duk-Yong Kim, Jong-Ju Han, Tai-Sun Kim, Joon-Hong Park, Chan-Kyu Yoo
  • Led Lighting Device
    Publication number: 20160003465
    Abstract: An LED lighting device includes a case unit forming a light emitting space, wherein resting surfaces are formed at predetermined areas on the inner side of the case unit, substrates having LEDs mounted thereon and respectively rested on the plurality of resting surfaces, and heat-dissipating units formed in the outer side of the case unit for heat dissipation. Lifespan and user convenience can be improved.
    Type: Application
    Filed: November 24, 2014
    Publication date: January 7, 2016
    Inventors: Dong-Sik Roh, Duk-Yong Kim, Jong-Ju Han, Tai-Sun Kim, Joon-Hong Park, Chan-Kyu Yoo