Patents by Inventor Oh Hwan Kwon

Oh Hwan Kwon 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).

  • Publication number: 20240428739
    Abstract: A display apparatus includes a plurality of pixels. A pixel includes a first capacitor connected between a first voltage line receiving a first driving signal and a first node, a first transistor comprising a control electrode connected to the first node, a first electrode connected to a second voltage line receiving a first power source signal and a second electrode connected to a second node, an organic light emitting diode comprising an anode electrode connected to the second node and a cathode electrode receiving a second power source signal, a second capacitor connected between an m-th data line and the second node (wherein, ‘m’ is a natural number) and a second transistor comprising a control electrode connected to an n-th scan line (wherein, ‘n’ is a natural number), a first electrode connected to the first node and a second electrode connected to the second node.
    Type: Application
    Filed: September 9, 2024
    Publication date: December 26, 2024
    Inventors: Chong-Chul CHAI, Oh-Kyong KWON, Nack-Hyeon KEUM, Kyong-Hwan OH, Young-Wan SEO, Yong-Koo HER, In-Jae HWANG
  • Publication number: 20240322111
    Abstract: An electrode roll including a bobbin having a variable ring positioned to correspond to a position of a non-coated portion.
    Type: Application
    Filed: November 9, 2022
    Publication date: September 26, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Soon Sik Choi, Oh Cheol Kwon, Ji Hwan Kim, Jeongwon Lee
  • Patent number: 12087228
    Abstract: A display apparatus includes a plurality of pixels. A pixel includes a first capacitor connected between a first voltage line receiving a first driving signal and a first node, a first transistor comprising a control electrode connected to the first node, a first electrode connected to a second voltage line receiving a first power source signal and a second electrode connected to a second node, an organic light emitting diode comprising an anode electrode connected to the second node and a cathode electrode receiving a second power source signal, a second capacitor connected between an m-th data line and the second node (wherein, ‘m’ is a natural number) and a second transistor comprising a control electrode connected to an n-th scan line (wherein, ‘n’ is a natural number), a first electrode connected to the first node and a second electrode connected to the second node.
    Type: Grant
    Filed: March 20, 2023
    Date of Patent: September 10, 2024
    Assignees: Samsung Display Co., Ltd., Industry-University Cooperation Foundation Hanyang University
    Inventors: Chong-Chul Chai, Oh-Kyong Kwon, Nack-Hyeon Keum, Kyong-Hwan Oh, Young-Wan Seo, Yong-Koo Her, In-Jae Hwang
  • Patent number: 12068576
    Abstract: Provided are an optical waveguide device and a laser apparatus including the same. The optical waveguide device includes a peripheral part disposed on an edge region of a substrate, an air pocket disposed on a central region of the substrate within the peripheral part, an optical waveguide comprising a core layer, which is disposed on an upper portion of the substrate within the air pocket to extend in a first direction, and an electrode on the core layer, and a plurality of hinges disposed on the air pocket to connect the optical waveguide to the peripheral part in a second direction crossing the first direction.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: August 20, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Oh Kee Kwon, Su Hwan Oh, Chul-Wook Lee, Kisoo Kim
  • Patent number: 12062884
    Abstract: Provided is a laser device according to embodiments of the inventive concept comprising a substrate including a gain region, a phase control region, and a tuning region arranged along a first direction, the substrate having an air gap which extends from the phase control region to the tuning region, an upper clad layer on the substrate, a waveguide structure extending in the first direction between the upper clad layer and the substrate, a first upper electrode disposed on the upper surface of the upper clad layer of the tuning region, and a lower electrode disposed on a lower surface of the substrate and extending from the gain region to the tuning region, wherein the air gap may have a larger width than the waveguide in a second direction crossing the first direction.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: August 13, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Oh Kee Kwon, Kisoo Kim, Su Hwan Oh, Chul-Wook Lee
  • Patent number: 12055517
    Abstract: The present invention relates to a graphene transistor comprising: a substrate; a graphene channel layer arranged on the substrate; a pair of metals spaced from each other and respectively arranged at opposite ends of the graphene channel layer; and a linker layer arranged on the graphene channel layer and including an N-heterocyclic carbene compound, a fabrication method therefor, and a biosensor comprising the same. The graphene transistor according to the present invention in which the carbene group of the N-heterocyclic carbene compound forms a covalent bond with the graphene channel layer to modify the whole surface of the graphene channel layer exhibits excellent electric conductivity as a transistor and a biosensor comprising the transistor is improved in selectivity and sensitivity.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: August 6, 2024
    Assignee: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Oh Seok Kwon, Chang Soo Lee, Seon Joo Park, Tai Hwan Ha, Chul Soon Park, Kyung Ho Kim, Jin Yeong Kim
  • Patent number: 7879848
    Abstract: Novel compounds exhibiting good inhibitory activity versus Dipeptidyl Peptidase-IV(DPP-IV) include those of the following formula (1) or pharmaceutically acceptable salt thereof: wherein A is a substituted or unsubstituted 1,4,5,7-tetrahydro-pyrazolo[3,4-c]pyridine, 5,6 -dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, 4,5-dihydro-7H-isooxazolo[3,4-c]pyridine, 3,4 -dihydroisoquinoline, 5,8-dihydropyrido[3,4-d]pyrimidine, or 6,7 -dihydro[1,3]thiazolo[4,5,c]pyridine, and B is a substituted or unsubstituted piperidin-2-one, morpholin-3-one, oxazolidin-2-one, pyrrolidin-2-one, or 1,5-dihydro-pyrrol-2-one. Methods of preparing the novel inhibitory compounds of formula (1) and pharmaceutical compositions containing the same as an active agent are disclosed.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: February 1, 2011
    Assignee: LG Life Sciences, Ltd.
    Inventors: Chang-Seok Lee, Jong Sung Koh, Ki Dong Koo, Geun Tae Kim, Kyoung-Hee Kim, Sang Yong Hong, Sungsub Kim, Min-Jung Kim, Hyeon Joo Yim, Dongchul Lim, Hye Jin Kim, Hee Oon Han, Seong Cheol Bu, Oh Hwan Kwon, Sung Ho Kim, Gwong-Cheung Hur, Ji Young Kim, Zi-Ho Yeom, Dong-Jun Yeo
  • Publication number: 20080188471
    Abstract: The present invention relates to novel compounds exhibiting good inhibitory activity versus Dipeptidyl Peptidase-IV (DPP-IV), methods of preparing the same and pharmaceutical compositions containing the same as an active agent.
    Type: Application
    Filed: March 30, 2006
    Publication date: August 7, 2008
    Applicant: LG LIFE SCIENCES, LTD.
    Inventors: Chang-Seok Lee, Jong Sung Koh, Ki Dong Koo, Geun Tae Kim, Kyoung-Hee Kim, Sang Yong Hong, Sungsub Kim, Min-Jung Kim, Hyeon Joo Yim, Dongchul Lim, Hye Jin Kim, Hee Oon Han, Seong Cheol Bu, Oh Hwan Kwon, Sung Ho Kim, Gwong-Cheung Hur, Ji Young Kim, Zi-Ho Yeom, Dong-Jun Yeo
  • Publication number: 20030065176
    Abstract: The present invention relates to a compound with aryl-amidines, particularly amidinoaryl-cyclopropanes, amidinoarylmethyl-pyrroles, amidinoaryl-benzenes, amidinoaryl-pyridines, or amindonoaryl-alanines, represented by formula (1), a pharmaceutically acceptable salt, a prodrug, a hydrate, a solvate or an isomer thereof, which are inhibitors of coagulation enzyme, factor Xa (FXa). The present invention also relates to a pharmaceutical composition containing the compound, and a method of using the same as an anticoagulant agent for treatment and prevention of thrombosis disorders.
    Type: Application
    Filed: July 24, 2002
    Publication date: April 3, 2003
    Inventors: Myung-Gyun Kang, Doo-Hee Park, Oh-Hwan Kwon, Eunice Eun-Kyeong Kim, Kwang-Yeon Hwang, Yong-Seok Heo, Tae-Kyo Park, Tae-Hee Lee, Kwang-Yul Moon, Jong-Woo Park, Hye-Kyung Chang, Sang-Koo Lee, Sun-Hwa Lee, Su-Kyung Park, Sung-Hack Lee, Hae-Dong Park
  • Patent number: D1049823
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: November 5, 2024
    Assignee: YURA CO., LTD.
    Inventors: Soo Hwan Park, Oh Ryun Kwon