Patents by Inventor Deok-hee Han

Deok-hee Han 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).

  • Patent number: 10660167
    Abstract: A light emitting diode (LED) lighting apparatus includes an LED driver that outputs a driving current, a switch circuit that selects at least one division terminal among a first division terminal to a fourth division terminal and electrically connects the selected at least one division terminal with a driving current terminal receiving the driving current, a first resistor circuit that is connected with the first and second division terminals, a second resistor circuit that is connected with the third and fourth division terminals, a first LED light source that is electrically connected with the first resistor circuit and emits a first light having a first color temperature, and a second LED light source that is electrically connected with the second resistor circuit and emits a second light having a second color temperature higher than the first color temperature.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: May 19, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Deok Hee Han
  • Publication number: 20200100334
    Abstract: A light emitting diode (LED) lighting apparatus includes an LED driver that outputs a driving current, a switch circuit that selects at least one division terminal among a first division terminal to a fourth division terminal and electrically connects the selected at least one division terminal with a driving current terminal receiving the driving current, a first resistor circuit that is connected with the first and second division terminals, a second resistor circuit that is connected with the third and fourth division terminals, a first LED light source that is electrically connected with the first resistor circuit and emits a first light having a first color temperature, and a second LED light source that is electrically connected with the second resistor circuit and emits a second light having a second color temperature higher than the first color temperature.
    Type: Application
    Filed: April 24, 2019
    Publication date: March 26, 2020
    Inventor: Deok Hee HAN
  • Publication number: 20120236532
    Abstract: A light-emitting device (LED) engine includes: a body having a through-hole; a light-emitting module that is disposed under the body, includes at least one light emitting device, and is disposed to expose a light-emitting surface via the through-hole; and a printed circuit board (PCB) which is disposed under the body, to which the light-emitting module is coupled, and includes a terminal unit for supplying power to the light-emitting module.
    Type: Application
    Filed: March 7, 2012
    Publication date: September 20, 2012
    Inventors: Won-hoe Koo, Yun-seok Woo, Dong-il Lim, Deok-hee Han, Chul Park, Il-seok Lee