Patents by Inventor Do-Gyu JUNG

Do-Gyu JUNG 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).

  • Light emitting device
    Patent number: 10937931
    Abstract: A light emitting device including a light emitting element for emitting blue light; and a fluorescent film including a single crystal fluorescent material or a polycrystalline fluorescent material, wherein the fluorescent film absorbs the blue light and emits light having a wavelength different from that of the blue light, wherein the fluorescent film faces a surface of the light emitting element, and the fluorescent material included in the fluorescent film is represented by the following Formula (1): Y3-x-yLxMyAl5O12 wherein L is Gd or Lu, and M is Ce, Tb, Eu, Yb, Pr, Tm, or Sm, 0?x?2.999, and 0.001?y?0.1.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: March 2, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Do-Gyu Jung, Sung-Woo Choi, Chul-Soo Yoon
  • LIGHT EMITTING DEVICE
    Publication number: 20200091379
    Abstract: A light emitting device including a light emitting element for emitting blue light; and a fluorescent film including a single crystal fluorescent material or a polycrystalline fluorescent material, wherein the fluorescent film absorbs the blue light and emits light having a wavelength different from that of the blue light, wherein the fluorescent film faces a surface of the light emitting element, and the fluorescent material included in the fluorescent film is represented by the following Formula (1): Y3-x-yLxMyAl5O12 wherein L is Gd or Lu, and M is Ce, Tb, Eu, Yb, Pr, Tm, or Sm, 0?x?2.999, and 0.001?y?0.1.
    Type: Application
    Filed: March 13, 2019
    Publication date: March 19, 2020
    Inventors: Do-Gyu JUNG, Sung-Woo CHOI, Chul-Soo YOON