Patents by Inventor Kyung Gyu NOH

Kyung Gyu NOH 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 for preparing solid-state photonic crystal IPN composite functionalized with enzyme, photonic crystal IPN composite prepared by the method and biosensor using the photonic crystal IPN composite
    Patent number: 11892410
    Abstract: The present invention relates to a method for preparing a solid-state photonic crystal IPN composite functionalized with an enzyme, a photonic crystal IPN composite prepared by the method, and a biosensor using the photonic crystal IPN composite. The method of the present invention includes (1) mixing a nonreactive chiral dopant with a reactive nematic mesogen, curing the mixture, and removing the chiral dopant while maintaining a helical structure, to form a solid-state helical photonic crystal structure, (2) infiltrating a PAA hydrogel into the internal space of the photonic crystal structure, followed by curing to form an IPN-structured composite, and (3) immobilizing an enzyme in the IPN-structured composite. The PAA hydrogel is infiltrated into the solid-state helical photonic crystal structure and the enzyme is immobilized such that a pH change caused by the enzymatic reaction induces shrinkage and expansion of the PAA hydrogel, leading to a color change.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: February 6, 2024
    Assignee: Kyungpook National University Industry-Academic Cooperation Foundation
    Inventors: Soo Young Park, Kyung Gyu Noh
  • POLYESTER POLYMER
    Publication number: 20230348664
    Abstract: The present invention provides a polyester polymer having improved heat discoloration and at the same time, having a high molecular weight.
    Type: Application
    Filed: September 1, 2021
    Publication date: November 2, 2023
    Inventors: Young Sung SUH, No Woo PARK, Ho Sub KIM, Choong Hee HONG, Kyung Gyu NOH, Ki Hyun PARK
  • NOVEL CATALYST MATERIAL FOR PRODUCING POLYESTER, METHOD FOR PRODUCING POLYESTER USING SAME, AND POLYESTER PRODUCED THEREBY
    Publication number: 20230348666
    Abstract: The present invention provides a novel catalyst material used to produce polyester having improved molecular weight and color from a dicarboxylic acid aromatic heterocyclic compound or a derivative thereof.
    Type: Application
    Filed: September 13, 2021
    Publication date: November 2, 2023
    Inventors: Ho Sub KIM, Kyung Gyu NOH, Young Sung SUH, Choong Hee HONG, Ki Hyun PARK, No Woo PARK
  • METHOD FOR PREPARING SOLID-STATE PHOTONIC CRYSTAL IPN COMPOSITE FUNCTIONALIZED WITH ENZYME, PHOTONIC CRYSTAL IPN COMPOSITE PREPARED BY THE METHOD AND BIOSENSOR USING THE PHOTONIC CRYSTAL IPN COMPOSITE
    Publication number: 20210389252
    Abstract: The present invention relates to a method for preparing a solid-state photonic crystal IPN composite functionalized with an enzyme, a photonic crystal IPN composite prepared by the method, and a biosensor using the photonic crystal IPN composite. The method of the present invention includes (1) mixing a nonreactive chiral dopant with a reactive nematic mesogen, curing the mixture, and removing the chiral dopant while maintaining a helical structure, to form a solid-state helical photonic crystal structure, (2) infiltrating a PAA hydrogel into the internal space of the photonic crystal structure, followed by curing to form an IPN-structured composite, and (3) immobilizing an enzyme in the IPN-structured composite. The PAA hydrogel is infiltrated into the solid-state helical photonic crystal structure and the enzyme is immobilized such that a pH change caused by the enzymatic reaction induces shrinkage and expansion of the PAA hydrogel, leading to a color change.
    Type: Application
    Filed: February 20, 2019
    Publication date: December 16, 2021
    Applicant: Kyungpook National University Industry-Academic Cooperation Foundation
    Inventors: Soo Young PARK, Kyung Gyu NOH
  • Method for preparing solid-state helical photonic crystal structure and photonic crystal structure prepared thereby
    Patent number: 10745619
    Abstract: Disclosed is a method for preparing a solid-state helical photonic crystal structure. The method includes: mixing a nonreactive chiral dopant with a reactive nematic mesogen, followed by curing to form a helical cholesteric liquid crystal; and removing the chiral dopant from the cholesteric liquid crystal while maintaining the helical structure of the cholesteric liquid crystal, to form a solid-state helical liquid crystal.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: August 18, 2020
    Assignee: Kyungpook National University Industry-Academic Cooperation Foundation
    Inventors: Soo Young Park, Kyung Gyu Noh
  • METHOD FOR PREPARING SOLID-STATE HELICAL PHOTONIC CRYSTAL STRUCTURE AND PHOTONIC CRYSTAL STRUCTURE PREPARED THEREBY
    Publication number: 20180244997
    Abstract: Disclosed is a method for preparing a solid-state helical photonic crystal structure. The method includes: mixing a nonreactive chiral dopant with a reactive nematic mesogen, followed by curing to form a helical cholesteric liquid crystal; and removing the chiral dopant from the cholesteric liquid crystal while maintaining the helical structure of the cholesteric liquid crystal, to form a solid-state helical liquid crystal.
    Type: Application
    Filed: February 27, 2018
    Publication date: August 30, 2018
    Applicant: Kyungpook National University Industry-Academic Cooperation Foundation
    Inventors: Soo Young PARK, Kyung Gyu NOH