Patents by Inventor Dae-Yoon Kim

Dae-Yoon Kim 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).

  • Carbon nanotube fiber having improved physical properties and method for manufacturing same
    Patent number: 12151939
    Abstract: The present disclosure relates to a carbon nanotube fiber having improved physical properties and a method for manufacturing the same. The method according to the present disclosure comprises the steps of: spinning carbon nanotubes with a purity of 90% by weight or more to obtain a first carbon nanotube fiber; and heat-treating the first carbon nanotube fiber at 500 to 3,000° C. under an inert gas atmosphere to obtain a second carbon nanotube fiber, wherein the second carbon nanotube fiber has a density of 1.0 to 2.5 g/cm3.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: November 26, 2024
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Bon Cheol Ku, Jun Yeon Hwang, Hyeon Su Jeong, Nam Ho You, Nam Dong Kim, Dae Yoon Kim, Dong Ju Lee, Seo Gyun Kim, Seung Ki Hong, Seung Woo Ryu
  • Method of manufacturing an aramid and carbon-nanotube composite fiber
    Patent number: 11959193
    Abstract: Disclosed are a spinning dope for an aramid and carbon-nanotube composite fiber and a method of manufacturing an aramid and carbon-nanotube composite fiber using the same.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: April 16, 2024
    Assignee: Korea Institute of Science and Technology
    Inventors: Dae Yoon Kim, Ki Hyun Ryu, Bon Cheol Ku, Jun Yeon Hwang, Nam Dong Kim, Dong Ju Lee, Seo Gyun Kim
  • METHOD OF PREPARING CARBON COMPOSITE FIBER AND CARBON COMPOSITE FIBER
    Publication number: 20230167588
    Abstract: The present invention relates to a method for manufacturing carbon composite fibers and carbon nanofibers, and more particularly, to a method for manufacturing carbon composite fiber with greatly improved specific tensile strength, specific modulus, electrical conductivity, and thermal conductivity.
    Type: Application
    Filed: November 4, 2022
    Publication date: June 1, 2023
    Inventors: Bon-Cheol KU, Sung Yong Kim, Seo Gyun KIM, NAM HO YOU, Jungwon KIM, Jun Yeon HWANG, Nam Dong KIM, Dae-Yoon KIM
  • SPINNING DOPE FOR ARAMID AND CARBON-NANOTUBE COMPOSITE FIBER AND METHOD OF MANUFACTURING ARAMID AND CARBON-NANOTUBE COMPOSITE FIBER USING SAME
    Publication number: 20230114595
    Abstract: Disclosed are a spinning dope for an aramid and carbon-nanotube composite fiber and a method of manufacturing an aramid and carbon-nanotube composite fiber using the same.
    Type: Application
    Filed: March 22, 2022
    Publication date: April 13, 2023
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Dae Yoon KIM, Ki Hyun RYU, Bon Cheol KU, Jun Yeon HWANG, Nam Dong KIM, Dong Ju LEE, Seo Gyun KIM
  • CARBON NANOTUBE FIBER HAVING IMPROVED PHYSICAL PROPERTIES AND METHOD FOR MANUFACTURING SAME
    Publication number: 20220227631
    Abstract: The present disclosure relates to a carbon nanotube fiber having improved physical properties and a method for manufacturing the same. The method according to the present disclosure comprises the steps of: spinning carbon nanotubes with a purity of 90% by weight or more to obtain a first carbon nanotube fiber; and heat-treating the first carbon nanotube fiber at 500 to 3,000° C. under an inert gas atmosphere to obtain a second carbon nanotube fiber, wherein the second carbon nanotube fiber has a density of 1.0 to 2.5 g/cm3.
    Type: Application
    Filed: July 28, 2021
    Publication date: July 21, 2022
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Bon Cheol KU, Jun Yeon HWANG, Hyeon Su JEONG, Nam Ho YOU, Nam Dong KIM, Dae Yoon KIM, Dong Ju LEE, Seo Gyun KIM, Seung Ki HONG, Seung Woo RYU
  • ARAMID AMPHIPHILE SELF-ASSEMBLED NANOSTRUCTURES
    Publication number: 20200298194
    Abstract: Aramids and nanostructures formed from the aramids are described.
    Type: Application
    Filed: March 20, 2020
    Publication date: September 24, 2020
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Julia Ortony, Jia Tian, Dae-Yoon Kim, William Lindemann, Ty Christoff-Tempesta, Andrew Lew, Yukio Cho