Patents by Inventor Youn Joung Park

Youn Joung Park 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: 11935980
    Abstract: A filtering panel includes a molding layer part; a pattern layer part having an incident surface through which light emitted from a light source and viewing light transmitted to an observer enter, and an accommodation surface which is the reverse surface of the incident surface, wherein the molding layer part is stacked on the incident surface so as to be adjacent thereto, and the pattern layer part adjusts the optical paths of the emitted light and the viewing light; and a filtering layer part formed on a lower incident surface of the pattern layer part having the incident surface of the viewing light that enters from a lower region below a horizontal reference line, wherein the reflectivity of the visible light in the viewing light incident on the lower region is made greater than that of an upper region above the reference line by means of mirror reflection.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: March 19, 2024
    Assignees: POSCO CO., LTD, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Sung-Ju Tark, Kun-Hoon Baek, Jun-Hong Kim, Youn-Joung Choi, Ji-Sang Park
  • Patent number: D962256
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: August 30, 2022
    Assignee: The Procter & Gamble Company
    Inventors: Naoki Miyamoto, Lin Yu, Youn Joung Park, Yasuharu Shirai
  • Patent number: D982595
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: April 4, 2023
    Assignee: The Procter & Gamble Company
    Inventors: Naoki Miyamoto, Lin Yu, Youn Joung Park, Yasuharu Shirai