Patents by Inventor Choong-Youl Kim

Choong-Youl Kim 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).

  • Publication number: 20060290275
    Abstract: Provided is a light emitting device including a light emititng chip, and a phosphor through which a light emitting from the light emitting chip at least partially passes such that the light is converted into lights having at least two different wavelengths and emitted. The phosphor includes a silicate phosphor having a chemical formula of Sr3-xSiO5:Eu2+x(0<x<1) to excite a second light having a first centered emission peak using the first light and a sulfide phosphor having a chemical formula of Sr1-xGa2S4:Eu2+x(0.001<x<1) to excite a third light having a second centered emission peak using the first light.
    Type: Application
    Filed: April 7, 2005
    Publication date: December 28, 2006
    Applicants: LG INNOTEK CO LTD, KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Chang Kim, Joung-Kyu Park, Sang-Kee Kim, Choong-Youl Kim
  • Publication number: 20060284185
    Abstract: Provided is a light emitting device including a light emititng chip, and a phosphor through which a light emitting from the light emitting chip at least partially passes such that the light is converted into lights having at least two different wavelengths and emitted. The light emtting device emits white light using the phosphor.
    Type: Application
    Filed: April 7, 2005
    Publication date: December 21, 2006
    Inventors: Chang-Hae Kim, Joung-Kyu Park, Sang-Kee Kim, Choong-Youl Kim