Patents by Inventor Chang-Ku Kim

Chang-Ku 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).

  • Light-emitting element, method of fabricating the light-emitting element, and display device
    Patent number: 11949046
    Abstract: A light-emitting element includes a first semiconductor layer doped to have a first polarity, a second semiconductor layer doped to have a second polarity different from the first polarity, a light-emitting layer disposed between the first and second semiconductor layers, a shell layer formed on side surfaces of the first semiconductor layer, the light-emitting layer, and the second semiconductor layer, the shell layer including a divalent metal element, and an insulating film covering an outer surface of the shell layer and surrounding the side surface of the light-emitting layer.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: April 2, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Se Hun Kim, Chang Hee Lee, Yun Hyuk Ko, Duk Ki Kim, Jun Woo Park, Soo Ho Lee, Jae Kook Ha, Yun Ku Jung
  • Hairbrush
    Patent number: 9198499
    Abstract: In a hairbrush including a brush body having bristles twisted and fixed to a twisted wire and a porous cylindrical body having holes at a uniform interval and coupled to the brush body such that the bristles of the brush body are elastically exposed to the outside of the porous cylindrical body by a predetermined length, the porous cylindrical body is formed by curving a mesh plate in the shape of a roll and fixing the both side ends of the mesh plate to each other, and the bristles of the brush body are elastically exposed through the mesh holes of the porous cylindrical body.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: December 1, 2015
    Inventor: Chang Ku Kim
  • HAIRBRUSH
    Publication number: 20150128366
    Abstract: In a hairbrush including a brush body having bristles twisted and fixed to a twisted wire and a porous cylindrical body having holes at a uniform interval and coupled to the brush body such that the bristles of the brush body are elastically exposed to the outside of the porous cylindrical body by a predetermined length, the porous cylindrical body is formed by curving a mesh plate in the shape of a roll and fixing the both side ends of the mesh plate to each other, and the bristles of the brush body are elastically exposed through the mesh holes of the porous cylindrical body.
    Type: Application
    Filed: June 24, 2014
    Publication date: May 14, 2015
    Inventor: Chang Ku Kim
  • 4-acylamino-2-hydroxy-5-substituted-acylanilide compounds and method of using them
    Publication number: 20030109753
    Abstract: Disclosed is a 4-acylamino-2-hydroxy-5-substituted-acylanilide compound having the structural formula I: 1
    Type: Application
    Filed: December 3, 2001
    Publication date: June 12, 2003
    Applicant: Eastman Kodak Company
    Inventor: Chang-Ku Kim