Patents by Inventor II Ku Kim

II 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).

  • White light emitting diode module
    Publication number: 20080197366
    Abstract: A white LED module includes a circuit board, a blue LED chip disposed on the circuit board, a green light source of an LED chip or phosphor disposed on the circuit board, and a red light source of an LED chip or phosphor disposed on the circuit board. At least one of the green and red light sources is a phosphor, which is excited by the blue LED chip to radiate. The blue LED chip emits light in a triangular region defined by color coordinates (0.0123, 0.5346), (0.0676, 0.4633) and (0.17319, 0.0048), the green light source emits light in a triangular region defined by color coordinates (0.025, 0.5203), (0.4479, 0.541) and (0.0722, 0.7894), and the red light source emits light in a triangular region defined by color coordinates (0.556, 0.4408), (0.6253, 0.3741) and (0.7346, 0.2654).
    Type: Application
    Filed: April 17, 2008
    Publication date: August 21, 2008
    Inventors: Chul-Hee Yoo, II Ku Kim, Seong Yeon Han, Hyung Suk Kim, Hun Joo Hahm