Patents by Inventor Hyo-yul PARK

Hyo-yul PARK 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).

  • Publication number: 20230174735
    Abstract: The present invention relates to: a method for producing a polyimide aerogel having low dielectric properties, high insulation, and high strength; and a polyimide aerogel prepared therefrom. The present invention has the technical gist of a method for producing a polyimide aerogel having low dielectric properties, high insulation, and high strength, and a polyimide aerogel prepared therefrom, the method including: a first step of preparing a solvent; a second step of preparing a polyamic acid resin by reacting a diamine-based monomer with an acid anhydride monomer in a solvent; a third step of preparing a polyimide resin solution by imidizing the polyamic acid resin at 150 to 200° C.
    Type: Application
    Filed: January 30, 2023
    Publication date: June 8, 2023
    Inventors: Dae Ho LEE, Moon Jung JO, Se Won HAN, Seung Gun YU, Hyo Yul PARK
  • Publication number: 20210308647
    Abstract: Proposed are a polyimide aerogel having a controlled particle size and pore structure, and a method for producing the same. More particularly, proposed are a polyimide aerogel in which not only can the particle size of a polyimide resin be controlled, but the pore structure of the polyimide aerogel can also be controlled through an organic solvent mixture, and a method for producing the polyimide aerogel. This can be achieved through: a first step of preparing a solvent; a second step of synthesizing a polyamic acid resin by reacting a diamine-based monomer and an acid anhydride monomer in the solvent; a third step of forming a polyimide resin through imidization of the polyamic acid resin by subjecting the polyamic acid resin to a high-temperature reaction at 150 to 200° C.
    Type: Application
    Filed: April 23, 2021
    Publication date: October 7, 2021
    Inventors: Dae Ho LEE, Moon Jung JO, Hyo Yul PARK, Seung Gun YU, Se Won HAN
  • Patent number: 8535808
    Abstract: The present invention relates to a heat dissipation coating agent and to a heat-dissipating plate including same, which efficiently dissipate heat from the surface of a heat-dissipating plate of an electric/electronic component. Particularly, the heat dissipation coating agent, which is applied to the surface of a heat-dissipating plate of an electric/electronic component, includes infrared radiation powder and a binder, and the heat-dissipating plate is coated with a heat dissipation layer consisting of the heat dissipation coating agent. Since the heat dissipation coating agent applied to the heat-dissipating plate is highly conductive, heat is emitted from the heat-dissipating plate by conduction as well as convection. In particular, the heat dissipation coating agent, which conducts heat with high conductivity, can be applied to a heat-dissipating plate of a high-power LED light source.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: September 17, 2013
    Assignee: Korea Electrotechnology Research Institute
    Inventors: Hyo-yul Park, Myeong-sang Ahn, Dong-jun Kang, Dae-young Jung
  • Publication number: 20120077040
    Abstract: The present invention relates to a heat dissipation coating agent and to a heat-dissipating plate including same, which efficiently dissipate heat from the surface of a heat-dissipating plate of an electric/electronic component. Particularly, the heat dissipation coating agent, which is applied to the surface of a heat-dissipating plate of an electric/electronic component, includes infrared radiation powder and a binder, and the heat-dissipating plate is coated with a heat dissipation layer consisting of the heat dissipation coating agent. Since the heat dissipation coating agent applied to the heat-dissipating plate is highly conductive, heat is emitted from the heat-dissipating plate by conduction as well as convection. In particular, the heat dissipation coating agent, which conducts heat with high conductivity, can be applied to a heat-dissipating plate of a high-power LED light source.
    Type: Application
    Filed: December 7, 2011
    Publication date: March 29, 2012
    Applicant: Korea Electrotechnology Research Institute
    Inventors: Hyo-yul PARK, Myeong-sang Ahn, Dong-jun Kang, Dae-young Jung