Patents by Inventor Hyun Joon Choi

Hyun Joon 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).

  • Patent number: 12237364
    Abstract: A display device includes: a first sub-pixel having a first emission area and a first sub-area adjacent to each other in a first direction; and a bank extending around a portion of the first emission area and the first sub-area. The bank includes: a first wall extending around the first sub-area; and a second wall adjacent to the first emission area in a second direction crossing the first direction. The second wall and the first wall are spaced apart from each other in the first direction.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: February 25, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Deok Im, Buem Joon Kim, Won Ho Lee, Hae Yun Choi
  • Patent number: 8669342
    Abstract: The invention provides a non-painting and high-gloss polycarbonate resin composition. Specifically, the invention provides a polycarbonate resin composition having a superior impact strength, heat-resistance, electric characteristics, weather resistance, and light resistance. In certain embodiments, the resin composition of the invention is obtained by mixing a butadiene-based impact modifier, such as acrylonitrile-butadiene-styrene (ABS) or methacrylate-butadiene-styrene and an acryl-based impact modifier in polycarbonate resin, followed by adding an ultraviolet (UV) absorbent to the mixture.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: March 11, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation, LG Chem. Ltd.
    Inventors: Dae Sik Kim, Jung Gyun Noh, Kyeong Hoon Jang, Hyun Joon Choi, Yong Kim, Sung Tae Ahn, Min Han Kwak
  • Publication number: 20140045968
    Abstract: The invention provides a non-painting and high-gloss polycarbonate resin composition. Specifically, the invention provides a polycarbonate resin composition having a superior impact strength, heat-resistance, electric characteristics, weather resistance, and light resistance. In certain embodiments, the resin composition of the invention is obtained by mixing a butadiene-based impact modifier, such as acrylonitrile-butadiene-styrene (ABS) or methacrylate-butadiene-styrene and an acryl-based impact modifier in polycarbonate resin, followed by adding an ultraviolet (UV) absorbent to the mixture.
    Type: Application
    Filed: December 12, 2012
    Publication date: February 13, 2014
    Applicants: HYUNDAI MOTOR COMPANY, LG CHEM. LTD., KIA MOTORS CORPORATION
    Inventors: Dae Sik Kim, Jung Gyun Noh, Kyeong Hoon Jang, Hyun Joon Choi, Yong Kim, Sung Tae Ahn, Min Han Kwak