Patents by Inventor Yi-Hyun Park

Yi-Hyun 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).

  • Patent number: 10928338
    Abstract: The present disclosure provides a sample holder assembly for a laser flash apparatus for measuring a thermal conductivity of a pebble-bed, the assembly comprising: a tubular sample container configured to be mounted on a sample carrier tube for the laser flash apparatus, wherein the sample container has open top and bottom; a bottom disc disposed in the sample container to block the open bottom of the sample container and configured for delivering a laser from a laser flash unit of the apparatus to a pebble-bed; the pebble-bed packed on the bottom disc to a predetermined thickness; and a top disc disposed on the pebble-bed and in the sample container to block the open top of the sample container and configured for receiving heat from the pebble-bed to transfer the heat upward.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: February 23, 2021
    Assignee: KOREA BASIC SCIENCE INSTITUTE
    Inventors: Yi-Hyun Park, Seungyon Cho, Mu-Young Ahn, Youngmin Lee, Duck Young Ku
  • Publication number: 20190302044
    Abstract: The present disclosure provides a sample holder assembly for a laser flash apparatus for measuring a thermal conductivity of a pebble-bed, the assembly comprising: a tubular sample container configured to be mounted on a sample carrier tube for the laser flash apparatus, wherein the sample container has open top and bottom; a bottom disc disposed in the sample container to block the open bottom of the sample container and configured for delivering a laser from a laser flash unit of the apparatus to a pebble-bed; the pebble-bed packed on the bottom disc to a predetermined thickness; and a top disc disposed on the pebble-bed and in the sample container to block the open top of the sample container and configured for receiving heat from the pebble-bed to transfer the heat upward.
    Type: Application
    Filed: May 18, 2018
    Publication date: October 3, 2019
    Inventors: Yi-Hyun PARK, Seungyon CHO, Mu-Young AHN, Youngmin LEE, Duck Young KU
  • Patent number: 9896346
    Abstract: A method for synthesizing lithium-titanium oxide using a solid state method includes: mixing lithium oxide (Li2O) and titanium oxide (TiO2) in a solvent; separating a solid material which includes lithium oxide and titanium oxide from the solvent; drying the solid material separated from the solvent; and performing a heat treatment on the solid material.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: February 20, 2018
    Assignee: KOREA BASIC SCIENCE INSTITUTE
    Inventors: Yi-Hyun Park, Seungyon Cho, Mu-Young Ahn, Kyung-Mi Min
  • Publication number: 20160304355
    Abstract: A method for synthesizing lithium-titanium oxide using a solid state method includes: mixing lithium oxide (Li2O) and titanium oxide (TiO2) in a solvent; separating a solid material which includes lithium oxide and titanium oxide from the solvent; drying the solid material separated from the solvent; and performing a heat treatment on the solid material.
    Type: Application
    Filed: March 24, 2016
    Publication date: October 20, 2016
    Inventors: Yi-Hyun PARK, Seungyon CHO, Mu-Young AHN, Kyung-Mi MIN
  • Patent number: 9353013
    Abstract: A SiC ceramic material includes a bundle of SiC continuous fibers in a porous SiC ceramic matrix, has thermal insulation properties, a high level of strength and a high degree of toughness. A SiC ceramic structure is made of the SiC ceramic material. It is produced by preparing a pressure-sintered compact using a slurry prepared by mixing SiC powder and carbon powder in a liquid and by gasifying and releasing the carbon powder. The SiC ceramic structure can be produced by heating a reaction preparation containing a bundle of SiC continuous fibers and Si powder to a temperature equal to or higher than the melting point of silicon causing a reaction of the carbon component and Si powder and thereby obtaining a reaction-sintered compact, and by gasifying and releasing the carbon component from the reaction-sintered compact. The SiC ceramic can be produced by a chemical vapor deposition method.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: May 31, 2016
    Assignee: KYOTO UNIVERSITY
    Inventors: Tatsuya Hinoki, Yi-Hyun Park
  • Publication number: 20130288880
    Abstract: A SiC ceramic material includes a bundle of SiC continuous fibers in a porous SiC ceramic matrix, has thermal insulation properties, a high level of strength and a high degree of toughness. A SiC ceramic structure is made of the SiC ceramic material. It is produced by preparing a pressure-sintered compact using a slurry prepared by mixing SiC powder and carbon powder in a liquid and by gasifying and releasing the carbon powder. The SiC ceramic structure can be produced by heating a reaction preparation containing a bundle of SiC continuous fibers and Si powder to a temperature equal to or higher than the melting point of silicon causing a reaction of the carbon component and Si powder and thereby obtaining a reaction-sintered compact, and by gasifying and releasing the carbon component from the reaction-sintered compact. The SiC ceramic can be produced by a chemical vapor deposition method.
    Type: Application
    Filed: November 10, 2011
    Publication date: October 31, 2013
    Applicant: KYOTO UNIVERSITY
    Inventors: Tatsuya Hinoki, Yi-Hyun Park