Patents by Inventor Gyoungsik Kim

Gyoungsik Kim 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).

  • Waste Plastic Recycling Process
    Publication number: 20230374248
    Abstract: A waste plastic recycling process includes preparing a first solution by dissolving waste plastics in an organic solvent; adding an adsorbent to the first solution; recrystallizing plastics by adding 60 parts by weight or more of a compound having a Hansen solubility parameter (HSP) of 5 to 14 with respect to polycarbonate based on 100 parts by weight of the total weight of the first solution; and collecting the recrystallized plastics. A method for preparing recyclable plastics thereof is also provided.
    Type: Application
    Filed: June 21, 2022
    Publication date: November 23, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Gyoungsik Kim, Seog Jae Seo, Gyeongho Seon, Chang Hwan Ju, Danbi Han, Jae Hoon Choe
  • Organic Light-Emitting Device
    Publication number: 20230309369
    Abstract: The present disclosure relates to an organic light emitting device including an anode; a cathode; a light emitting layer provided between the anode and the cathode; a first organic material layer including a composition including a compound of Chemical Formula 1 or a cured material thereof provided between the light emitting layer and the anode; and a second organic material layer including a copolymer of Chemical Formula 3 or a cured material thereof provided between the first organic material layer and the light emitting layer, wherein all the variables are described herein.
    Type: Application
    Filed: August 13, 2021
    Publication date: September 28, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Jiyoung Lee, Sungkyoung Kang, Gyoungsik Kim, Min Suk Jung, Jaesoon Bae, Jaechol Lee, Songrim Jang, Doowhan Choi, Jiyeon Shin, Eunhye Kang
  • Conjugated polymer for organic solar cell and organic solar cell including the same
    Patent number: 10494476
    Abstract: Disclosed is a conjugated polymer for an organic solar cell. The proportion of units containing no alkyl thiophene moieties in the conjugated polymer can vary to make the conjugated polymer suitable for use as an electron-donating organic semiconductor material in a small-area or large-area organic solar cell. Therefore, the use of the conjugated polymer ensures high energy conversion efficiency of the organic solar cell.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: December 3, 2019
    Assignee: Korea Institute of Science and Technology
    Inventors: Hae Jung Son, Phillip Lee, Jeung-hyun Jeong, Gyoungsik Kim, Sungmin Park, Injeong Shin, Sung-yoon Joe, Ji Yeong Kim
  • CONJUGATED POLYMER FOR ORGANIC SOLAR CELL AND ORGANIC SOLAR CELL INCLUDING THE SAME
    Publication number: 20190144602
    Abstract: Disclosed is a conjugated polymer for an organic solar cell. The proportion of units containing no alkyl thiophene moieties in the conjugated polymer can vary to make the conjugated polymer suitable for use as an electron-donating organic semiconductor material in a small-area or large-area organic solar cell. Therefore, the use of the conjugated polymer ensures high energy conversion efficiency of the organic solar cell.
    Type: Application
    Filed: October 16, 2018
    Publication date: May 16, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hae Jung Son, Phillip Lee, Jeung-hyun Jeong, Gyoungsik Kim, Sungmin Park, Injeong Shin, Sung-yoon Joe, Ji Yeong Kim