Patents by Inventor Hyelim Yang

Hyelim Yang 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).

  • GAMMA VOLTAGE CORRECTION DEVICE AND GAMMA VOLTAGE CORRECTION METHOD FOR DISPLAY DEVICE
    Publication number: 20240071277
    Abstract: In a gamma voltage correction method for a display device including a first display area and a second display area, the gamma voltage correction method includes: correcting a gamma voltage for each sub-pixel of the first display area based on measured light characteristics of a first area of the first display area in a plurality of gray levels; and correcting a gamma voltage for each sub-pixel of the second display area based on measured light characteristics of a second area of the first display area around the second display area and measured light characteristics of the second display area in the plurality of gray levels.
    Type: Application
    Filed: August 24, 2023
    Publication date: February 29, 2024
    Inventors: Sibeak Pyo, Sungjin Kim, Hyosang Yang, Eunjung Oh, Seungkyu Lee, Yoongyu Lee, Hyelim Lee, Younwoo Choe, Hyunseok Hong, Younguk Hwang
  • Distillation apparatus
    Patent number: 10981081
    Abstract: The present invention relates to a distillation apparatus and, more particularly, to a distillation apparatus for recovering a high purity product through fractionation of volatile components from a material to be distilled, by using thermal energy and centrifugal force. The distillation apparatus can recover a high purity product from the material to be distilled without significant damage by reducing a pressure drop according to driving of the apparatus and thereby minimizing the temperature difference in the apparatus.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: April 20, 2021
    Assignee: Hanwha Chemical Corporation
    Inventors: Woo Youl Ahan, Hyelim Yang, Geunsik Lim, Sungup Choi, Jaekyu Jang
  • Distillation Apparatus
    Publication number: 20190321746
    Abstract: The present invention relates to a distillation apparatus and, more particularly, to a distillation apparatus for recovering a high purity product through fractionation of volatile components from a material to be distilled, by using thermal energy and centrifugal force. The distillation apparatus can recover a high purity product from the material to be distilled without significant damage by reducing a pressure drop according to driving of the apparatus and thereby minimizing the temperature difference in the apparatus.
    Type: Application
    Filed: December 14, 2017
    Publication date: October 24, 2019
    Inventors: Woo Youl Ahan, Hyelim Yang, Geunsik Lim, Sungup Choi, Jaekyu Jang