Patents by Inventor Hyun Sik Woo

Hyun Sik Woo 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: 11989994
    Abstract: The present invention is directed to providing to a bundle module of a medium deposit device capable of not only arranging leading ends of rejected bill media which are returned to the bundle module but also preventing collision between a leading medium and a following medium and a jam occurrence of the media according to the collision.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: May 21, 2024
    Assignee: HYOSUNG TNS INC.
    Inventor: Hyun Sik Woo
  • Publication number: 20240140721
    Abstract: According to an embodiment of a tension maintaining device of a media transport belt, a device for maintaining tension of a belt to ensure a gripping force of the belt for gripping and transporting bundled media, in which a plurality of pieces of media are stacked, includes a rotation shaft; a link member coupled to the rotation shaft while having a predetermined length in a direction parallel to the longitudinal direction of the belt, and provided to be rotatable about the rotation shaft in response to a change in the number of pieces of the bundled media in contact with the belt; a first roller rotatably coupled to a first roller shaft provided at one end of the link member and maintained in contact with the belt; and a second roller rotatably coupled to a second roller shaft provided at the other end of the link member and maintained in contact with the belt.
    Type: Application
    Filed: October 19, 2023
    Publication date: May 2, 2024
    Inventors: HYUN SIK WOO, DONGKYUNG KIM
  • Patent number: 11807492
    Abstract: The present invention is directed to providing to an align module of a medium deposition device which is capable of reducing a time to align a medium and improving reliability of medium alignment and allows a structure of a device for the medium alignment to be simplified.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: November 7, 2023
    Assignee: HYOSUNG TNS INC.
    Inventors: Hyun Sik Woo, Jae Hoon Kwak
  • Publication number: 20230069409
    Abstract: Disclosed are a polymer gel electrolyte composition, a polymer gel electrolyte prepared from the composition, and a lithium secondary battery including the electrolyte are proposed. The polymer gel electrolyte may be formed by thermal cross-linking of the polymer gel electrolyte composition including an ether-based organic solvent with excellent compatibility with a lithium metal anode, a nitrate capable of forming a stable film on an electrode surface, and an appropriate ratio of a cross-linking agent having two or more acrylate functional groups. Therefore, the polymer gel electrolyte can smoothly penetrate the anode to form an ion transport channel and improve oxidation stability through interaction between the polymer and the solvent thereof, thereby improving battery life.
    Type: Application
    Filed: August 30, 2022
    Publication date: March 2, 2023
    Inventors: Eun Ji Kwon, Samuel Seo, Won Kuen Kim, Kyoung Han Ryu, Kyu Ju Kwak, Yeon Jong Oh, Dong Won Kim, Ji Wan Kim, Bo Hyung Lee, Myung Keun Oh, Hyun Sik Woo
  • Patent number: 11380936
    Abstract: The present disclosure relates to a gel polymer electrolyte for a lithium-air battery containing a zwitterion salt in a specific amount and to a lithium-air battery including the same and thus having a prolonged battery lifetime, thereby suppressing volatilization of the electrolyte and imparting the lithium-air battery with interfacial stability by inhibiting the formation of dendrites at a lithium anode and suppressing side reactions between the lithium anode and the liquid electrolyte. Moreover, the use of the zwitterion salt can improve the lithium-ion transference number, thereby increasing the lifetime of the battery.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: July 5, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, INDUSTRY-UNIV COOPERATION FDN. HANYANG UNIV
    Inventors: Jun Ki Rhee, Hyun Sik Woo, Dong Won Kim
  • Publication number: 20220112043
    Abstract: The present invention is directed to providing to an align module of a medium deposition device which is capable of reducing a time to align a medium and improving reliability of medium alignment and allows a structure of a device for the medium alignment to be simplified.
    Type: Application
    Filed: October 12, 2021
    Publication date: April 14, 2022
    Inventors: Hyun Sik WOO, Jae Hoon KWAK
  • Publication number: 20220028202
    Abstract: The present invention is directed to providing to a bundle module of a medium deposit device capable of not only arranging leading ends of rejected bill media which are returned to the bundle module but also preventing collision between a leading medium and a following medium and a jam occurrence of the media according to the collision.
    Type: Application
    Filed: July 16, 2021
    Publication date: January 27, 2022
    Inventor: Hyun Sik WOO
  • Publication number: 20210184256
    Abstract: The present disclosure relates to a gel polymer electrolyte for a lithium-air battery containing a zwitterion salt in a specific amount and to a lithium-air battery including the same and thus having a prolonged battery lifetime, thereby suppressing volatilization of the electrolyte and imparting the lithium-air battery with interfacial stability by inhibiting the formation of dendrites at a lithium anode and suppressing side reactions between the lithium anode and the liquid electrolyte. Moreover, the use of the zwitterion salt can improve the lithium-ion transference number, thereby increasing the lifetime of the battery.
    Type: Application
    Filed: November 24, 2020
    Publication date: June 17, 2021
    Inventors: Jun Ki RHEE, Hyun Sik WOO, Dong Won KIM
  • Patent number: 10693170
    Abstract: Disclosed herein are a lithium air battery having a multi-layered electrolyte membrane and a method of manufacturing the same. The lithium air battery includes a first electrolyte membrane capable of obtaining high ionic conductivity on a lithium negative electrode surface while minimizing the content of polymer and positioning a second electrolyte membrane with high resistance to oxygen radicals on the air electrode. Accordingly, the multi-layered electrolyte membrane can improve an electrolyte filling characteristic and a conductive characteristic of lithium ions, suppress oxygen radicals from being carried from an air electrode, and suppress a growth of lithium dendrite to largely improve a battery lifespan.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: June 23, 2020
    Assignees: Hyundai Motor Company, IUCF-HYU (Industry-University cooperation Foundation Hanyang University)
    Inventors: Dae Gun Jin, Kyoung Han Ryu, Won Keun Kim, Dong Won Kim, Jae Hong Kim, Hyun Sik Woo
  • Publication number: 20170294671
    Abstract: Disclosed herein are a lithium air battery having a multi-layered electrolyte membrane and a method of manufacturing the same. The lithium air battery includes a first electrolyte membrane capable of obtaining high ionic conductivity on a lithium negative electrode surface while minimizing the content of polymer and positioning a second electrolyte membrane with high resistance to oxygen radicals on the air electrode. Accordingly, the multi-layered electrolyte membrane can improve an electrolyte filling characteristic and a conductive characteristic of lithium ions, suppress oxygen radicals from being carried from an air electrode, and suppress a growth of lithium dendrite to largely improve a battery lifespan.
    Type: Application
    Filed: September 19, 2016
    Publication date: October 12, 2017
    Inventors: Dae Gun Jin, Kyoung Han Ryu, Won Keun Kim, Dong Won Kim, Jae Hong Kim, Hyun Sik Woo