Patents by Inventor Ja Young BAE

Ja Young BAE 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).

  • Photonic crystal structure and anti-forgery color conversion film comprising same
    Patent number: 11531150
    Abstract: An anti-forgery color conversion film includes a photonic crystal structure whose color is converted by an external stimulus such as a breath. The photonic crystal structure includes a first refractive index layer including a first polymer exhibiting a first refractive index; and a second refractive index layer which is alternately laminated with the first refractive index layer and includes a second polymer exhibiting a second refractive index. A consumer who purchases an article including the color conversion film may easily distinguish the authenticity of the article.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: December 20, 2022
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Seo Hyun Jung, Jong Mok Park, Ho Youl Kong, Ja Young Bae
  • Color-conversion photonic crystal structure and color-conversion photonic crystal sensor using same
    Patent number: 10919998
    Abstract: A photonic crystal structure employs such a structure that two layers having different refractive indices are laminated alternately, a polymer including a structure unit derived from a monomer that contains a fluorocarbon group being used for one of the repeated layers such that the photonic crystal structure can respond to humidity and/or organic solvent concentration. Using the photonic crystal structure, it is possible to manufacture a color-conversion photonic crystal sensor having excellent sensitivity and reproduction characteristics.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: February 16, 2021
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Seo Hyun Jung, Jong Mok Park, Ho Youl Kong, Ja Young Bae
  • COLOR-CONVERSION PHOTONIC CRYSTAL STRUCTURE AND COLOR-CONVERSION PHOTONIC CRYSTAL SENSOR USING SAME
    Publication number: 20200255565
    Abstract: A photonic crystal structure employs such a structure that two layers having different refractive indices are laminated alternately, a polymer including a structure unit derived from a monomer that contains a fluorocarbon group being used for one of the repeated layers such that the photonic crystal structure can respond to humidity and/or organic solvent concentration. Using the photonic crystal structure, it is possible to manufacture a color-conversion photonic crystal sensor having excellent sensitivity and reproduction characteristics.
    Type: Application
    Filed: December 9, 2016
    Publication date: August 13, 2020
    Inventors: Seo Hyun JUNG, Jong Mok PARK, Ho Youl KONG, Ja Young BAE
  • PHOTONIC CRYSTAL STRUCTURE AND ANTI-FORGERY COLOR CONVERSION FILM COMPRISING SAME
    Publication number: 20200225391
    Abstract: An anti-forgery color conversion film includes a photonic crystal structure whose color is converted by an external stimulus such as a breath. The photonic crystal structure includes a first refractive index layer including a first polymer exhibiting a first refractive index; and a second refractive index layer which is alternately laminated with the first refractive index layer and includes a second polymer exhibiting a second refractive index. A consumer who purchases an article including the color conversion film may easily distinguish the authenticity of the article.
    Type: Application
    Filed: January 3, 2018
    Publication date: July 16, 2020
    Inventors: Seo Hyun JUNG, Jong Mok PARK, Ho Youl KONG, Ja Young BAE