Patents by Inventor Ji Hyung Han

Ji Hyung Han 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: 11943985
    Abstract: Discussed are a light-emitting device and a light-emitting display device having improved efficiency and increased lifespan. A plurality of stacks is provided between an anode and a cathode for at least a subpixel to emit a predetermined color, and emissive layers in different stacks include the same color-based materials having different luminous properties.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: March 26, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jin Ho Park, Kyu Il Han, Chang Hwan Kwak, Dong Hyeok Lim, Hwa Yong Shin, Ji Hyung Lee
  • Publication number: 20240079945
    Abstract: Provided is a testing apparatus for an active current control-type non-contact superconductive exciter having a hybrid magnet installed therein, and a high-temperature superconductive rotating machine using same. Provided is principally characterized by having a hybrid magnet, in a module form, in which a permanent magnet, a DC electromagnet and an AC electromagnet are used together, wherein the hybrid magnet is set in a plurality along the circumferential direction of a ring-shaped iron stator, is formed to correspond to the outer side of a rotor, having a high-temperature superconductive tape (or a second-generation high-temperature superconductive wire), of a non-contact superconductive exciter, and thus enables a selected operation (charging, discharging and the like) before and after rotation of a driving motor.
    Type: Application
    Filed: January 7, 2022
    Publication date: March 7, 2024
    Inventors: Ho Min KIM, Ji Hyung KIM, Yoon Seok CHAE, Yong Soo YOON, Seung Hak HAN
  • Patent number: 11684762
    Abstract: Disclosed is an energy self-sufficient real time bio-signal monitoring and nutrient and/or drug delivery system based on salinity gradient power generation. The energy self-sufficient real time bio-signal monitoring and/or nutrient delivery system based on salinity gradient power generation includes: an electricity generation and nutrient and/or drug delivery module including a reverse electrodialysis device which generates electricity by using a nutrient and/or drug solution and discharge a diluted nutrient solution; and a bio-signal measuring unit inserted into the electricity generation and nutrient and/or drug delivery module and configured to receive electricity from the electricity generation and nutrient and/or drug delivery module and measure a bio-signal.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: June 27, 2023
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Nam-Jo Jeong, Ji Yeon Choi, Han-Ki Kim, Seung Cheol Yang, Kyo Sik Hwang, Ji-Hyung Han, Joo-Youn Nam, Eun-Jin Jwa, Soon-Chul Park, Yong-Seog Seo, Moon-Seok Jang
  • Publication number: 20200316354
    Abstract: Disclosed is an energy self-sufficient real time bio-signal monitoring and nutrient and/or drug delivery system based on salinity gradient power generation. The energy self-sufficient real time bio-signal monitoring and/or nutrient delivery system based on salinity gradient power generation includes: an electricity generation and nutrient and/or drug delivery module including a reverse electrodialysis device which generates electricity by using a nutrient and/or drug solution and discharge a diluted nutrient solution; and a bio-signal measuring unit inserted into the electricity generation and nutrient and/or drug delivery module and configured to receive electricity from the electricity generation and nutrient and/or drug delivery module and measure a bio-signal.
    Type: Application
    Filed: February 2, 2018
    Publication date: October 8, 2020
    Inventors: Nam-jo JEONG, Ji Yeon CHOI, Han-Ki KIM, Seung Cheol YANG, Kyo Sik HWANG, Ji Hyung HAN, Joo-Youn NAM, Eun-Jin JWA, Soon-Chul PARK, Yong-Seog SEO, Moon-Seok JANG
  • Patent number: 10427982
    Abstract: A method includes: supplying sources or nanoparticles of any one or two or more combinations selected from a group which consists of a carbon source, a doping source, a doped element containing carbon source, and a waste plastic source into a high-temperature and high-pressure closed autoclave, completely closing the high-temperature and high-pressure closed autoclave, and forming a nanoparticle-carbon core-shell structure by a single process by coating a carbon layer on the surface of the nanoparticles or forming a core-shell structure of nanoparticle-doped carbon by the single process by coating a carbon layer doped with the doped element on the surface of the nanoparticles under pressure self-generated in the autoclave and a reaction temperature in the range of 500 to 850° C. by heating the autoclave.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: October 1, 2019
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Namjo Jeong, Chan-Soo Kim, Ji Yeon Choi, Joo-youn Nam, Soon-chul Park, Moon seok Jang, Kangmin Chon, Ji-Hyung Han, Han-Ki Kim, Eun-Jin Jwa
  • Patent number: 10384201
    Abstract: Disclosed is a direct synthesis method of nanostructured catalyst particles on surfaces of various supports.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: August 20, 2019
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Namjo Jeong, Chan-Soo Kim, Eun-Jin Jwa, Ji Yeon Choi, Joo-Youn Nam, Soon-Chul Park, Moon-Seok Jang, Yong Seok Seo, Kyo Sik Hwang, Han Ki Kim, Ji Hyung Han, Tae Young Kim, Young Gi Yoon
  • Publication number: 20170232431
    Abstract: Disclosed is a direct synthesis method of nanostructured catalyst particles on surfaces of various supports.
    Type: Application
    Filed: February 17, 2017
    Publication date: August 17, 2017
    Inventors: Namjo Jeong, Chan-Soo Kim, Eun-Jin Jwa, Ji Yeon Choi, Joo-Youn Nam, Soon-Chul Park, Moon-Seok Jang, Yong Seok Seo, Kyo Sik Hwang, Han Ki Kim, Ji Hyung Han, Tae Young Kim, Young Gi Yoon
  • Publication number: 20170081248
    Abstract: A method includes: supplying sources or nanoparticles of any one or two or more combinations selected from a group which consists of a carbon source, a doping source, a doped element containing carbon source, and a waste plastic source into a high-temperature and high-pressure closed autoclave, completely closing the high-temperature and high-pressure closed autoclave, and forming a nanoparticle-carbon core-shell structure by a single process by coating a carbon layer on the surface of the nanoparticles or forming a core-shell structure of nanoparticle-doped carbon by the single process by coating a carbon layer doped with the doped element on the surface of the nanoparticles under pressure self-generated in the autoclave and a reaction temperature in the range of 500 to 850° C. by heating the autoclave.
    Type: Application
    Filed: September 16, 2016
    Publication date: March 23, 2017
    Inventors: Namjo Jeong, Chan-Soo Kim, Ji Yeon Choi, Joo-Youn Nam, Soon-Chul Park, Moon Seok Jang, Kangmin Chon, Ji-Hyung Han, Han-Ki Kim, Eun-Jin Jwa
  • Publication number: 20150140469
    Abstract: The present invention provides a fuel electrode including a substrate and a nanoporous metallic catalyst layer, characterized in that the metallic catalyst layer includes open interconnected 3D nanopores, and the pore and the pore connections have a size suitable for allowing hydrocarbons having alcohol groups to pass through the interconnected pores so that they react in contact with the surface of the catalyst by confined molecular dynamics. Further, the present invention provides a compartmentless fuel cell electrode pair including the fuel electrode of the present invention; and a polymer membrane-coated oxygen electrode into which a catalyst layer is introduced onto the substrate and which blocks the hydrocarbons having alcohol groups as a fuel molecule and allows the diffusion of oxygen molecules.
    Type: Application
    Filed: January 16, 2015
    Publication date: May 21, 2015
    Inventors: Taek Dong Chung, Ji Hyung Han