Patents by Inventor HYUN-YOUNG YOO

HYUN-YOUNG YOO 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: 11936052
    Abstract: Provided is a fluorine-doped tin oxide support, a platinum catalyst for a fuel cell having the same, and a method for producing the same. Also described is a high electrical conductivity and electrochemical durability by doping fluorine to the tin oxide-based support through an electrospinning process. Thus, while resolving a degradation issue of the carbon support in the conventional commercially available platinum/carbon (Pt/C) catalyst, what is designed is to minimize an electrochemical elution of dopant or tin, which is a limitation of the tin oxide support itself and has excellent performance as a catalyst for a fuel cell.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: March 19, 2024
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jin Young Kim, Jong Min Kim, Hee-Young Park, So Young Lee, Hyun Seo Park, Sung Jong Yoo, Jong Hyun Jang, Hyoung-Juhn Kim, Chang Won Yoon, Jonghee Han
  • Publication number: 20240076788
    Abstract: Disclosed are an oxidizing electrode, a water electrolysis device including the same and a method for manufacturing the same. According to exemplary embodiments of the present disclosure, there is provided an oxidizing electrode with improved performance at low loadings of noble metals, especially, ruthenium (Ru) and iridium oxide, in which a ruthenium (Ru) layer and an iridium oxide layer formed on a substrate by electrodeposition in a sequential order are supported by electrochemical reaction rather than physical bonding.
    Type: Application
    Filed: January 18, 2023
    Publication date: March 7, 2024
    Inventors: Hyun S. PARK, Jong Hyun JANG, Hee-Young PARK, Su Ji LEE, Sung Jong YOO, Jin Young KIM, Jimin KONG, Jin-ho OH, So Young LEE
  • Publication number: 20220407011
    Abstract: The present invention relates to an organic compound, an organic light-emitting diode including the organic compound, and a display device including the organic light-emitting diode. More particularly, the present invention relates to an organic compound including a compound presented by Chemical Formula 1 and being capable of improving luminous efficacy, thermal stability, and lifespan properties, an organic light-emitting diode including the organic compound, and a display device including the organic light-emitting diode.
    Type: Application
    Filed: October 30, 2020
    Publication date: December 22, 2022
    Inventors: Kwang Ju JUNG, Jong Jin HA, Seok Jong LEE, Hyun Young YOO, Eun Chul SHIN
  • Publication number: 20220407012
    Abstract: The present invention relates to an organic compound, an organic light-emitting diode including the organic compound, and a display device including the organic light-emitting diode. More particularly, the present invention relates to an organic compound including a compound represented by Chemical Formula 1 and being capable of improving luminous efficacy, thermal stability, and lifespan properties; an organic light-emitting diode including the organic compound; and a display device including the organic light-emitting diode.
    Type: Application
    Filed: October 30, 2020
    Publication date: December 22, 2022
    Inventors: Kwang Ju JUNG, Jong Jin HA, Seok Jong LEE, Hyun Young YOO, Eun Chul SHIN
  • Patent number: 11374177
    Abstract: Provided are a compound represented by the following Chemical Formulas and an organic light emitting device comprising the same.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: June 28, 2022
    Inventors: Kwang Ju Jung, Sung Soo Kim, Hyun Young Yoo, Jong Jin Ha, Seok Jong Lee, Chun Young Lee
  • Publication number: 20200235309
    Abstract: Provided are a compound represented by the following Chemical Formulas and an organic light emitting device comprising the same.
    Type: Application
    Filed: November 7, 2019
    Publication date: July 23, 2020
    Inventors: Kwang Ju JUNG, Sung Soo KIM, Hyun Young YOO, Jong Jin HA, Seok Jong LEE, Chun Young LEE
  • Publication number: 20190288215
    Abstract: The present invention provides a compound of Chemical Formula 1 and a light emitting device comprising the same.
    Type: Application
    Filed: November 15, 2018
    Publication date: September 19, 2019
    Inventors: Seok-Jong LEE, Jin-Hee KIM, Eun-Chul SHIN, Jae-Kyo PARK, Hyun-Young YOO, Ah Rang LEE
  • Publication number: 20190161485
    Abstract: The present invention provides an organic compound represented by Chemical Formula 1 below: In Chemical Formula 1, R1 to R9 are each, independently, any one selected from the group consisting of hydrogen, a halogen, a nitro group, a substituted or unsubstituted C1-C6 alkyl group, a substituted or unsubstituted C3-C6 cycloalkyl group, a substituted or unsubstituted C6-C40 aryl group, and a substituted or unsubstituted C5-C40 heteroaryl group; L represents a single bond and is any one selected from the group consisting of an alkylene group, a cycloalkylene group, a heterocycloalkylene group, an arylene group, and a heteroarylene group; and Ar1 and Ar2 are each, independently, any one selected from the group consisting of hydrogen, a substituted or unsubstituted C3-C6 cycloalkyl group, a substituted or unsubstituted C3-C6 heterocycloalkyl group, a substituted or unsubstituted C6-C40 aryl group, and a substituted or unsubstituted C2-C40 heteroaryl group.
    Type: Application
    Filed: November 22, 2018
    Publication date: May 30, 2019
    Inventors: Jong Jin HA, Hyun Young YOO, Sung Soo KIM, Seok Jong LEE
  • Patent number: 9852804
    Abstract: A method of operating a nonvolatile memory device that includes a three-dimensional (3D) memory cell array is provided as follows. A first read operation is performed on first memory cells connected to a first word line by using a first read voltage level. A read retry operation is, if the first read operation fails, performed on the first memory cells so that a read retry voltage level is set to a second read voltage level. A read offset table is determined based on a difference between the first read voltage level and the second read voltage level. The read offset table stores a plurality of read voltage offsets. A second read operation is performed on second memory cells connected to a second word line by using a third read voltage level determined using the read offset table.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: December 26, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-Chul Park, Hyun-Young Yoo, Sang-Soo Park
  • Publication number: 20170162270
    Abstract: A method of operating a nonvolatile memory device that includes a three-dimensional (3D) memory cell array is provided as follows. A first read operation is performed on first memory cells connected to a first word line by using a first read voltage level. A read retry operation is, if the first read operation fails, performed on the first memory cells so that a read retry voltage level is set to a second read voltage level. A read offset table is determined based on a difference between the first read voltage level and the second read voltage level. The read offset table stores a plurality of read voltage offsets. A second read operation is performed on second memory cells connected to a second word line by using a third read voltage level determined using the read offset table.
    Type: Application
    Filed: September 30, 2016
    Publication date: June 8, 2017
    Inventors: JONG-CHUL PARK, HYUN-YOUNG YOO, SANG-SOO PARK