Patents by Inventor Youn Ki CHO

Youn Ki CHO 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).

  • PRESERVATIVE COMPRISING POLYLYSINE AND CAPRYLYL GLYCERYL ETHER FOR EXTERNAL-USE SKIN FORMULATIONS AND COSMETICS COMPOSITION COMPRISING SAME
    Publication number: 20230372227
    Abstract: The present application relates to a preservative comprising polylysine and caprylyl glyceryl ether and the use thereof, and provides a preservative for a skin external preparation, which exhibits excellent antimicrobial or preservative effects against bacteria and fungi, and a cosmetics composition comprising the preservative.
    Type: Application
    Filed: March 3, 2021
    Publication date: November 23, 2023
    Applicant: ACTIVON CO.,LTD.
    Inventors: Myo Deok KIM, Jun Hak LEE, Myung Chan CHO, Sung Won JUNG, Byung Gyu PARK, Youn Ki CHO
  • Irreversible thermochromic molded article for prevention of overheating and method for preparing same
    Patent number: 11149146
    Abstract: Provided are an irreversibly discoloring pigment for preventing overheating, a thermochromic molded article including the same, and a method of preparing the same, and more particularly, a discoloring pigment which becomes discolored when overheated, and then maintains the discoloration even after being cooled to room temperature, a thermochromic molded article including the discoloring pigment, and methods of preparing the discoloring pigment and the thermochromic molded article.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: October 19, 2021
    Inventors: Ji Soo Kim, Youn Ki Cho
  • IRREVERSIBLE THERMOCHROMIC MOLDED ARTICLE FOR PREVENTION OF OVERHEATING AND METHOD FOR PREPARING SAME
    Publication number: 20200216675
    Abstract: Provided are an irreversibly discoloring pigment for preventing overheating, a thermochromic molded article including the same, and a method of preparing the same, and more particularly, a discoloring pigment which becomes discolored when overheated, and then maintains the discoloration even after being cooled to room temperature, a thermochromic molded article including the discoloring pigment, and methods of preparing the discoloring pigment and the thermochromic molded article.
    Type: Application
    Filed: May 18, 2018
    Publication date: July 9, 2020
    Inventors: Ji Soo KIM, Youn Ki CHO