Patents by Inventor Won-Ji HYUN

Won-Ji HYUN 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).

  • Catalyst for exhaust gas purification
    Patent number: 11885249
    Abstract: Provided is a catalyst for exhaust gas purification, the catalyst comprising: a noble metal; an alumina support particle; and a ZrO2 semiconductor support particle deposited on a surface of the alumina support particle.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: January 30, 2024
    Assignee: LG HAUSYS, LTD.
    Inventors: Kyeong-Woo Choi, Ha-Na Kim, Won-Ji Hyun, Dong-Il Lee, Ho-Jin Choi
  • Catalyst particles for treating vehicle exhaust gas, preparation method therefor, and method for treating vehicle exhaust gas by using same
    Patent number: 11697109
    Abstract: Provided are catalyst particles for treating vehicle exhaust gas, containing semiconductor nanoparticles supported by noble metals.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: July 11, 2023
    Assignee: LG HAUSYS, LTD.
    Inventors: Kyeong-Woo Choi, Dong-Il Lee, Won-Ji Hyun, Jong-Sik Choi
  • CATALYST FOR PURIFYING EXHAUST GAS
    Publication number: 20210316278
    Abstract: Provided is a catalyst for purifying exhaust gas, comprising: noble metals; alumina support particles; and TiO2 semiconductor particles supported on the surfaces of the alumina support particles.
    Type: Application
    Filed: January 11, 2019
    Publication date: October 14, 2021
    Inventors: Ha-Na KIM, Kyeong-Woo CHOI, Dong-Il LEE, Ho-Jin CHOI, Won-Ji HYUN
  • CATALYST FOR EXHAUST GAS PURIFICATION
    Publication number: 20210239020
    Abstract: Provided is a catalyst for exhaust gas purification, the catalyst comprising: a noble metal; an alumina support particle; and a ZrO2 semiconductor support particle deposited on a surface of the alumina support particle.
    Type: Application
    Filed: January 11, 2019
    Publication date: August 5, 2021
    Inventors: Kyeong-Woo CHOI, Ha-Na KIM, Won-Ji HYUN, Dong-Il LEE, Ho-Jin CHOI
  • CATALYST PARTICLES FOR TREATING VEHICLE EXHAUST GAS, PREPARATION METHOD THEREFOR, AND METHOD FOR TREATING VEHICLE EXHAUST GAS BY USING SAME
    Publication number: 20200222880
    Abstract: Provided are catalyst particles for treating vehicle exhaust gas, containing semiconductor nanoparticles supported by noble metals.
    Type: Application
    Filed: April 4, 2018
    Publication date: July 16, 2020
    Inventors: Kyeong-Woo CHOI, Dong-Il LEE, Won-Ji HYUN, Jong-Sik CHOI