Patents by Inventor Kwang Keun CHOI

Kwang Keun CHOI 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).

  • DATA DRIVING DEVICE
    Publication number: 20240105099
    Abstract: The embodiment relates to a data driving device for driving pixels of a display panel. In the data driving device, two adjacent DACs can have different gate loads for the same gray level value so that the fluctuation of the gate load according to the gray level value is reduced.
    Type: Application
    Filed: November 17, 2023
    Publication date: March 28, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventors: Da Sol WON, Kwang Myung KANG, Yong Min KIM, Dong Keun SONG, Jung Min CHOI, Seon Ho HONG
  • Multi-functional port for microalgae cultivation and harvesting
    Patent number: 10005997
    Abstract: The present invention relates to a port installed in a closed-ended photochemical reactor, and more particularly, to a multi-functional port for microalgae cultivation and harvesting that supplies gas for cultivation for culturing microalgae by connecting to the closed-ended photochemical reactor; supplies gas for prevention of precipitation for lifting microalgae during cultivation; and assembles by taking samples of microalgae or selectively combining a plurality of valves which can harvest microalgae, whose cultivation is completed.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: June 26, 2018
    Assignee: KOREA DISTRICT HEATING CORP.
    Inventors: Won Seok Chang, Deog Yong Ahn, Sang Ho Shin, Ji Hye Yu, Young Jae Lee, Won Kwon Lee, Kwang Keun Choi, Sung Min Kim
  • MULTI-FUNCTIONAL PORT FOR MICROALGAE CULTIVATION AND HARVESTING
    Publication number: 20170204356
    Abstract: The present invention relates to a port installed in a closed-ended photochemical reactor, and more particularly, to a multi-functional port for microalgae cultivation and harvesting that supplies gas for cultivation for culturing microalgae by connecting to the closed-ended photochemical reactor; supplies gas for prevention of precipitation for lifting microalgae during cultivation; and assembles by taking samples of microalgae or selectively combining a plurality of valves which can harvest microalgae, whose cultivation is completed.
    Type: Application
    Filed: June 1, 2016
    Publication date: July 20, 2017
    Inventors: Won Seok CHANG, Deog Yong AHN, Sang Ho SHIN, Ji Hye YU, Young Jae LEE, Won Kwon LEE, Kwang Keun CHOI, Sung Min KIM