Patents by Inventor Wonjin NA

Wonjin NA 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).

  • Post-forming method of carbon-fiber-reinforced thermoplastic composite using stitching technique
    Patent number: 11673369
    Abstract: The present disclosure relates to a carbon-fiber-reinforced composite including a plurality of stacked thermoplastic layers, and a plurality of carbon fiber reinforcing layers interposed between the thermoplastic layers, wherein the carbon-fiber-reinforced composite further comprises a stitching part stitched with an upper yarn and a lower yarn from outside of the thermoplastic layers at a folding location of the carbon-fiber-reinforced composite.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: June 13, 2023
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Min Wook Lee, Yongtak Kim, Ki Hyun Ryu, Wonjin Na, Jaesang Yu, Minkook Kim, Cheol-Min Yang
  • POST-FORMING METHOD OF CARBON-FIBER-REINFORCED THERMOPLASTIC COMPOSITE USING STITCHING TECHNIQUE
    Publication number: 20210379867
    Abstract: The present disclosure relates to a carbon-fiber-reinforced composite including a plurality of stacked thermoplastic layers, and a plurality of carbon fiber reinforcing layers interposed between the thermoplastic layers, wherein the carbon-fiber-reinforced composite further comprises a stitching part stitched with an upper yarn and a lower yarn from outside of the thermoplastic layers at a folding location of the carbon-fiber-reinforced composite
    Type: Application
    Filed: March 25, 2021
    Publication date: December 9, 2021
    Inventors: Min Wook LEE, Yongtak KIM, Ki Hyun RYU, Wonjin NA, Jaesang YU, Minkook KIM, Cheol-Min YANG
  • FIBER REINFORCED COMPOSITE STRUCTURE COMPRISING STITCH-MEMBER AND THE METHOD FOR PRODUCING THE SAME
    Publication number: 20200307153
    Abstract: The present specification provides a carbon fiber reinforced composite structure comprising: a plurality of carbon fiber reinforced sheets, which are laminated; and a stitch member penetrating one or more carbon fiber reinforced sheets, in which the carbon fiber reinforced sheet includes a plurality of reinforcing carbon fibers arranged in one direction. The carbon fiber reinforced composite structure shows excellent thermal conductivity in a thickness direction.
    Type: Application
    Filed: February 27, 2020
    Publication date: October 1, 2020
    Inventors: Jaesang YU, Hyunkee HONG, Kwak Jin BAE, Hana JUNG, Hoi-Kil CHOI, Yuna OH, Dong Won LEE, Cheol-Min YANG, Min Wook LEE, Minkook KIM, Wonjin NA, Nam Ho YOU