Patents by Inventor Sang-ick CHOI

Sang-ick 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 OF DISPLAYING PROFILE VIEW ON INSTANT MESSAGING SERVICE
    Publication number: 20240163234
    Abstract: Provided is a method of operating a terminal. The method includes determining a profile item applicable to the profile view for the account based on an input received by the terminal and a coordinate indicating a position where the profile item is provided on the profile view. The method includes displaying the profile item on a screen of the terminal based on the determined profile item and the determined coordinate. The method includes receiving an input related to the profile item, and displaying a visual effect corresponding to the input on the screen.
    Type: Application
    Filed: November 8, 2023
    Publication date: May 16, 2024
    Inventors: Sul Gi KIM, Ji Hwi PARK, Yun Jin KIM, Nam Hee KO, Hye Seon KIM, Bo Young JANG, Seung Yong JI, Jae Ick HWANG, Sun Je BANG, Ji On CHU, Hye Mi LEE, Shin Young LEE, Seung Uk JEONG, Eun Ho SON, Sang Min SEO, Jeong Ryeol CHOI
  • Highly efficient COabsorbent composition and method for preparing the same
    Patent number: 11666853
    Abstract: Disclosed are a carbon dioxide absorbent composition in which an N-alkylaminoalkanol; a polyhydroxyamine-based compound; and ethylenediamine and/or diethylenetriamine are mixed, a method for preparing the same, and a method and an apparatus for carbon dioxide absorption/separation using the same. Since the carbon dioxide absorbent according to the present disclosure has superior carbon dioxide absorption capacity and remarkably lower absorbent recycling temperature as compared to the existing absorbents such as monoethanolamine, etc., total energy consumption in the capturing process can be reduced greatly. In addition, since carbon dioxide is recovered at low recycling temperature, contamination by water or absorbent vapor may be prevented.
    Type: Grant
    Filed: February 15, 2021
    Date of Patent: June 6, 2023
    Assignees: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, KOREA LAND & HOUSING CORPORATION
    Inventors: In Wook Nah, Jae Ik Kim, Soon Jong Kwak, In Hwan Oh, Daeseung Kyung, Youngjong Sim, Yeongmin Kim, Han-Guen Ahn, Sang-Ick Choi
  • HIGHLY EFFICIENT CO2 ABSORBENT COMPOSITION AND METHOD FOR PREPARING THE SAME
    Publication number: 20220233997
    Abstract: Disclosed are a carbon dioxide absorbent composition in which an N-alkylaminoalkanol; a polyhydroxyamine-based compound; and ethylenediamine and/or diethylenetriamine are mixed, a method for preparing the same, and a method and an apparatus for carbon dioxide absorption/separation using the same. Since the carbon dioxide absorbent according to the present disclosure has superior carbon dioxide absorption capacity and remarkably lower absorbent recycling temperature as compared to the existing absorbents such as monoethanolamine, etc., total energy consumption in the capturing process can be reduced greatly. In addition, since carbon dioxide is recovered at low recycling temperature, contamination by water or absorbent vapor may be prevented.
    Type: Application
    Filed: February 15, 2021
    Publication date: July 28, 2022
    Inventors: In Wook NAH, Jae Ik KIM, Soon Jong KWAK, In Hwan OH, Daeseung KYUNG, Youngjong SIM, Yeongmin KIM, Han-guen AHN, Sang-ick CHOI