Patents by Inventor Jonghee Han

Jonghee 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: 10276875
    Abstract: An anode for a molten carbonate fuel cell (MCFC) having improved creep property by adding CeO2 and/or Cr for imparting creep resistance to nickel-aluminum alloy and nickel as materials for an anode is provided. Improved sintering property, creep property and increased mechanical strength of a molten carbonate fuel cell may be obtained accordingly.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: April 30, 2019
    Assignee: Korean Institute of Science and Technology
    Inventors: Hyung Chul Ham, Min-Jae Lee, Chang-Whan Lee, Seong Cheol Jang, Sun-Hee Choi, Hyun Seo Park, Chang Won Yoon, Sung Pil Yoon, Jonghee Han, Suk Woo Nam, Tae Hoon Lim, Jin Young Kim
  • Patent number: 10236527
    Abstract: Provided are a method for preparing a Nafion membrane having a through-pore free monolithic porous structure throughout the bulk of the membrane through a one-step process very easily and a Nafion membrane having a through-pore free monolithic porous structure obtained from the method. The Nafion membrane having such a porous structure may have an increased surface area, and thus may improve the membrane/catalyst interfacial area and transport characteristics.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: March 19, 2019
    Assignee: Korean Institute of Science and Technology
    Inventors: Dirk Henkensmeier, Dickson Joseph, Jong Hyun Jang, Jin Young Kim, Hyoung-Juhn Kim, Jonghee Han, Suk Woo Nam, Sung Pil Yoon
  • Publication number: 20190039890
    Abstract: A hydrogen production device is provided. The device comprises: a dry reforming reaction unit for directly reacting methane and carbon dioxide in biogas to produce a synthesis gas containing hydrogen; and a gas shift unit for reacting carbon monoxide in the synthesis gas produced in the dry reforming reaction unit with water vapor to produce carbon dioxide and hydrogen, and for capturing the produced carbon dioxide.
    Type: Application
    Filed: July 26, 2018
    Publication date: February 7, 2019
    Inventors: Hyung Chul HAM, Byeong Wan KWON, Chan Hyun LEE, Joohyeng OH, Seong Cheol JANG, Sun-Hee CHOI, Hyun Seo PARK, Chang Won YOON, Jonghee HAN, Sung Pil YOON, Suk Woo NAM, Ki Bong LEE
  • Patent number: 10186712
    Abstract: Provided is a catalyst for an oxygen reduction reaction, including an alloy in which two metals are mixed, in which the corresponding alloy is an alloy of iridium (Ir); and silicon (Si), phosphorus (P), germanium (Ge), or arsenic (As). The corresponding catalyst for the oxygen reduction reaction may have excellent price competitiveness while exhibiting a catalytic activity which is equal to or similar to that of an existing Pt catalyst. Accordingly, when the catalyst is used, the amount of platinum catalyst having low price competitiveness may be reduced, so that a production unit cost of a system to which the corresponding catalyst is applied may be lowered.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: January 22, 2019
    Assignee: KOREA INSTITUE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyung Chul Ham, Jinwon Cho, Hyun Seo Park, Jong Hyun Jang, Sung Jong Yoo, Chang Won Yoon, Hyoung-Juhn Kim, Sung Pil Yoon, Jonghee Han, Suk Woo Nam
  • Patent number: 10144993
    Abstract: Provided is a catalyst for oxygen reduction reaction comprising an alloy comprising at least one selected from Pt, Pd and Ir supported on a carbon carrier functionalized with poly(N-isopropylacrylamide) (PNIPAM). The catalyst for oxygen reduction reaction has electronic ensemble effects by virtue of the carbon carrier functionalized with poly(N-isopropylacrylamide) (PNIPAM), and thus shows improved oxygen reduction activity and durability as compared to conventional catalysts supported on carbon.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: December 4, 2018
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sung Jong Yoo, Jong Hyun Jang, Hyoung-Juhn Kim, Namgee Jung, Suk Woo Nam, Jonghee Han, Sung Pil Yoon, Jaeyune Ryu, Tae Hoon Lim, Jin Young Kim
  • Publication number: 20180269493
    Abstract: Provided are: a dry reforming catalyst, in which a noble metal (M) is doped in a nickel yttria stabilized zirconia complex (Ni/YSZ) and an alloy (M-Ni alloy) of the noble metal (M) and nickel is formed at Ni sites on a surface of the nickel yttria stabilized zircona (YSZ); a method for producing the dry reforming catalyst using the noble metal/glucose; and a method for performing dry reforming using the catalyst. The present invention can exhibit a significantly higher dry reforming activity as compared with Ni/YSZ catalysts. Furthermore, the present invention can have an improved long-term performance by suppressing or preventing the deterioration. Furthermore, the preparing method is useful in performing the alloying of noble metal with Ni at Ni sites on the Ni/YSZ surface and can simplify the preparing process, and thus is suitable in mass production.
    Type: Application
    Filed: March 4, 2015
    Publication date: September 20, 2018
    Inventors: Suk Woo NAM, Chang Won YOON, Yeong Cheon KIM, Yong Min KIM, Jonghee HAN, Sung Pil YOON, Hyung Chul HAM, Jihoon JEONG, Seok-Keun KOH
  • Publication number: 20180258544
    Abstract: Provided are a cathode catalyst for water electrolysis devices and a method for preparing the same. More specifically, provided are a cathode catalyst for water electrolysis devices that exhibits both high activity and high electrical conductivity, compared to conventional transition metal phosphide catalysts, and a method for preparing the same.
    Type: Application
    Filed: March 2, 2018
    Publication date: September 13, 2018
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sung Jong Yoo, Injoon Jang, So Young Lee, Jin Young Kim, Jong Hyun Jang, Hyoung-Juhn Kim, Jonghee Han, Hyun Seo Park
  • Publication number: 20180241061
    Abstract: A composite polymer electrolyte membrane for a fuel cell may be manufactured by the following method: partially or totally filling the inside of a pore of a porous support with a hydrogen ion conductive polymer electrolyte solution by performing a solution impregnation process; and drying the hydrogen ion conductive polymer electrolyte solution while completely filling the inside of the pore with the hydrogen ion conductive polymer electrolyte solution by performing a spin dry process on the porous support of which the inside of the pore is partially or totally filled with the hydrogen ion conductive polymer electrolyte solution.
    Type: Application
    Filed: February 1, 2018
    Publication date: August 23, 2018
    Inventors: Jin Young KIM, Kyung-jin LEE, Kyungah LEE, Nayoung KIM, So Young LEE, Sung Jong YOO, Jong Hyun JANG, Hyoung-Juhn KIM, Jonghee HAN, Suk Woo NAM, Tae Hoon LIM
  • Publication number: 20180202970
    Abstract: An ionic conductivity measurement device of an electrolytic membrane includes a humidification chamber configured to accommodate an ion-conductive electrolytic membrane and having concave grooves respectively formed at both sides thereof which face the electrolytic membrane to form a measurement space for measuring ionic conductivity of the electrolytic membrane; a plurality of channels formed at a bottom surface of each of the concave grooves; a gas distribution unit detachably coupled to each of the concave grooves with the electrolytic membrane being interposed therebetween; and a plurality of electrodes provided in contact with one side of the electrolytic membrane and supported by the gas distribution unit, the plurality of electrodes being disposed side by side to measure an impedance of the electrolytic membrane.
    Type: Application
    Filed: January 4, 2018
    Publication date: July 19, 2018
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: So Young LEE, Hyoung-Juhn Kim, Young Seung Na, Jin Young Kim, Sung Jong Yoo, Jong Hyun Jang, Jonghee Han, Suk Woo Nam
  • Patent number: 10001667
    Abstract: Disclosed is a display apparatus a display of which includes a liquid crystal panel; a light source configured to emit light toward the liquid crystal panel; a first polarization layer disposed on a first surface of the liquid crystal panel and configured to transmit a first polarized component of the light emitted from the light source; a second polarization layer disposed on a second surface of the liquid crystal panel opposed to the first surface and configured to transmit a second polarized component of light emitted from the liquid crystal panel; and a color filter disposed on a surface of the second polarization layer from which the second polarized component exits, the color filter comprising a quantum dot layer configured to filter light having preset colors out of the second polarized component exiting the second polarization layer.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: June 19, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jinhyun Cho, Jonghee Han
  • Patent number: 9993806
    Abstract: Provided is a method for preparing a catalyst for a dehydrogenation reaction of formic acid, the method including: preparing a nitrogen-doped carbon support; forming a mixed solution including a first aqueous metal precursor solution which includes palladium (Pd) and a second aqueous metal precursor solution which includes nickel (Ni); and forming a catalyst for a dehydrogenation reaction of formic acid by stirring the nitrogen-doped carbon support with the mixed solution, and then immobilizing alloy particles of Pd and Ni on the nitrogen-doped carbon support.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: June 12, 2018
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Chang Won Yoon, Yeong Cheon Kim, Hyun Seo Park, Hyung Chul Ham, Sung Pil Yoon, Jonghee Han, Suk Woo Nam, Seong Cheol Jang
  • Publication number: 20180123139
    Abstract: Provided is a catalyst for an oxygen reduction reaction, including an alloy in which two metals are mixed, in which the corresponding alloy is an alloy of iridium (Ir); and silicon (Si), phosphorus (P), germanium (Ge), or arsenic (As). The corresponding catalyst for the oxygen reduction reaction may have excellent price competitiveness while exhibiting a catalytic activity which is equal to or similar to that of an existing Pt catalyst. Accordingly, when the catalyst is used, the amount of platinum catalyst having low price competitiveness may be reduced, so that a production unit cost of a system to which the corresponding catalyst is applied may be lowered.
    Type: Application
    Filed: October 23, 2017
    Publication date: May 3, 2018
    Inventors: Hyung Chul HAM, Jinwon CHO, Hyun Seo PARK, Jong Hyun JANG, Sung Jong YOO, Chang Won YOON, Hyoung-Juhn KIM, Sung Pil YOON, Jonghee HAN, Suk Woo NAM
  • Patent number: 9954240
    Abstract: Disclosed are a 5-(2,6-dioxyphenyl)tetrazole-containing polymer, a method for preparing the same, a membrane containing the same and an electrochemical device, particularly a high temperature polymer electrolyte membrane fuel cell, including the membrane. The membrane containing the 5-(2,6-dioxyphenyl)tetrazole-containing polymer is capable of providing high proton conductivity and exhibiting good mechanical properties, thereby capable of providing superior fuel cell performance. Accordingly, the membrane may be usefully used in an electrochemical device, particularly a fuel cell, more particularly a high temperature polymer electrolyte membrane fuel cell.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: April 24, 2018
    Assignees: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, JAGIELLONIAN UNIVERSITY
    Inventors: Dirk Henkensmeier, Jong Hyun Jang, Hyoung-Juhn Kim, Jin Young Kim, Sung Pil Yoon, Jonghee Han, Suk Woo Nam, Ngoc My Hanh Duong, Artur Michalak, Karol Dyduch, Mateusz Brela
  • Publication number: 20180102562
    Abstract: Provided is a composite polymer electrolyte membrane for a fuel cell, including: a porous fluorinated polymer support; and a perfluorinated sulfonic acid polymer resin membrane which fills the inside of pores of the porous perfluorinated polymer support and covers an external surface of the porous fluorinated polymer support.
    Type: Application
    Filed: September 29, 2017
    Publication date: April 12, 2018
    Inventors: Jin Young KIM, Sunhee JO, So Young LEE, Sung Jong YOO, Jong Hyun JANG, Hyoung-Juhn KIM, Jonghee HAN, Suk Woo NAM, Tae Hoon LIM
  • Publication number: 20180093889
    Abstract: Provided is a liquid hydrogen storage material including 1,1?-biphenyl and 1,1?-methylenedibenzene, the liquid hydrogen storage material including the corresponding 1,1?-biphenyl and 1,1?-methylenedibenzene at a weight ratio of 1:1 to 1:2.5. The corresponding liquid hydrogen storage material has excellent hydrogen storage capacity value by including materials having high hydrogen storage capacity, and is supplied in a liquid state, and as a result, it is possible to minimize initial investment costs and the like required when the corresponding liquid hydrogen storage material is used as a hydrogen storage material in a variety of industries.
    Type: Application
    Filed: September 25, 2017
    Publication date: April 5, 2018
    Inventors: Chang Won YOON, Dajung HAN, Yeong Cheon KIM, Hyun Seo PARK, Hyung Chul HAM, Sung Pil YOON, Jonghee HAN, Tae Hoon LIM, Suk Woo NAM
  • Publication number: 20180085738
    Abstract: Provided is a method for preparing a catalyst for a dehydrogenation reaction of formate and a hydrogenation reaction of bicarbonate, the method including: adding a silica colloid to a polymerization step of polymerizing aniline and reacting the resulting mixture to form a poly(silica-aniline) composite; carbonizing the corresponding poly(silica-aniline) composite under an atmosphere of an inert gas; removing silica particles from the corresponding poly(silica-aniline) composite to form a polyaniline-based porous carbon support; and fixing palladium particles on the corresponding polyaniline-based porous carbon support to prepare the catalyst.
    Type: Application
    Filed: September 29, 2017
    Publication date: March 29, 2018
    Applicants: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Rutgers University
    Inventors: Chang Won Yoon, Hyung Chul Ham, Suk Woo Nam, Tewodros Asefa, Katherine Koh, Jonghee Han, Sung Pil Yoon, Hyun Seo Park, Mina Jeon
  • Patent number: 9926266
    Abstract: Disclosed are a method for preparing a pure isophthalaldehyde bisulfite adduct free from impurities through a specific purification process, and use thereof as a starting material for polymerizing polybenzimidazole under a mild condition. According to the present disclosure, it is possible to obtain a pure isophthalaldehyde bisulfite adduct free from impurities, such as unreacted materials or byproducts. In addition, it is possible to accomplish industrial mass production of a high-molecular weight polybenzimidazole by using the adduct as a starting material for polymerizing polybenzimidazole under a mild condition in an organic solvent.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: March 27, 2018
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyoung-Juhn Kim, Eun Ki Kim, So Young Lee, Jong Hyun Jang, Jin Young Kim, Sung Jong Yoo, Dirk Henkensmeier, Dae Ki Choi, Jonghee Han, Suk Woo Nam
  • Publication number: 20180078925
    Abstract: Provided is a method for preparing a catalyst for a dehydrogenation reaction of formic acid, the method including: preparing a nitrogen-doped carbon support; forming a mixed solution including a first aqueous metal precursor solution which includes palladium (Pd) and a second aqueous metal precursor solution which includes nickel (Ni); and forming a catalyst for a dehydrogenation reaction of formic acid by stirring the nitrogen-doped carbon support with the mixed solution, and then immobilizing alloy particles of Pd and Ni on the nitrogen-doped carbon support.
    Type: Application
    Filed: September 19, 2017
    Publication date: March 22, 2018
    Inventors: Chang Won YOON, Yeong Cheon KIM, Hyun Seo PARK, Hyung Chul HAM, Sung Pil YOON, Jonghee HAN, Suk Woo NAM, Seong Cheol JANG
  • Patent number: D836860
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: December 25, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Youngsoo Ha, Taewoo Yoo, Jonghee Han, Eunyoung Chee, Seungho Oh, Jaeseok Seong
  • Patent number: D838063
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: January 8, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Youngsoo Ha, Taewoo Yoo, Jonghee Han, Eunyoung Chee, Seungho Oh, Jaeseok Seong