Patents by Inventor Yong Keun Choi

Yong 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).

  • Method and apparatus for reusing wastewater
    Patent number: 11945744
    Abstract: Disclosed are a method and apparatus for reusing wastewater. The method for reusing wastewater disclosed herein includes: generating a mixed wastewater by mixing multiple types of wastewater (S20); performing a first purification by passing the mixed wastewater through a flocculation-sedimentation unit (S40); performing a second purification by passing an effluent of the flocculation-sedimentation unit through a membrane bioreactor (MBR) (S60); performing a third purification by passing an effluent of the MBR through a reverse-osmosis membrane unit (S80); and reusing an effluent of the reverse-osmosis membrane unit as cooling water or industrial water (S100).
    Type: Grant
    Filed: April 14, 2023
    Date of Patent: April 2, 2024
    Assignees: SAMSUNG ENGINEERING CO., LTD., SAMSUNG ELECTRONICS CO., LTD
    Inventors: Seok Hwan Hong, Dae Soo Park, Seung Joon Chung, Yong Xun Jin, Jae Hyung Park, Jae Hoon Choi, Jae Dong Hwang, Jong Keun Yi, Su Hyoung Cho, Kyu Won Hwang, June Yurl Hur, Je Hun Kim, Ji Won Chun
  • 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
  • Refrigerator control
    Patent number: D553163
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: October 16, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yong Keun Choi
  • Refrigerator control
    Patent number: D553164
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: October 16, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yong Keun Choi
  • Handle
    Patent number: D561787
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: February 12, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yong Keun Choi
  • Handle
    Patent number: D562360
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: February 19, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yong Keun Choi
  • Computer case
    Patent number: D584728
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: January 13, 2009
    Assignee: Zalman Tech Co., Ltd.
    Inventors: Jin Tae Park, Hee Jun Yang, Sung Hwan Park, Duck Yeon Won, Yong Keun Choi