Patents by Inventor Kyu-oh Kim

Kyu-oh 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).

  • Separator and method for manufacturing separator
    Patent number: 9177729
    Abstract: The present invention provides a separator and a method for manufacturing the separator. The separator includes a first nanofiber layer (20) which has a lattice shape when viewed from a plan view, a second nanofiber layer (30) which is provided on a first surface of the first nanofiber layer (20) and is thinner than the first nanofiber layer, and a third nanofiber layer (40) which is provided on a second surface of the first nanofiber layer and is thinner than the first nanofiber layer. The thickness of the first nanofiber layer ranges from 7 ?m to 30 ?m. The thickness of each of the second and third nanofiber layers ranges from 1 ?m to 5 ?m. The present invention can provide a separator which has high insulation, high dendrite resistance, high ion conductivity and high mechanical strength.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: November 3, 2015
    Assignees: TOPTEC COMPANY LIMITED, SHINSHU UNIVERSITY
    Inventors: Ick-soo Kim, Byoung-Suhk Kim, Kei Watanabe, Naotaka Kimura, Kyu-oh Kim, Jae-hwan Lee
  • SEPARATOR AND METHOD FOR MANUFACTURING SEPARATOR
    Publication number: 20140004405
    Abstract: The present invention provides a separator and a method for manufacturing the separator. The separator includes a first nanofiber layer (20) which has a lattice shape when viewed from a plan view, a second nanofiber layer (30) which is provided on a first surface of the first nanofiber layer (20) and is thinner than the first nanofiber layer, and a third nanofiber layer (40) which is provided on a second surface of the first nanofiber layer and is thinner than the first nanofiber layer. The thickness of the first nanofiber layer ranges from 7 ?m to 30 ?m. The thickness of each of the second and third nanofiber layers ranges from 1 ?m to 5 ?m. The present invention can provide a separator which has high insulation, high dendrite resistance, high ion conductivity and high mechanical strength.
    Type: Application
    Filed: February 6, 2012
    Publication date: January 2, 2014
    Applicants: TOPTEC COMPANY LIMITED, SHINSHU UNIVERSITY
    Inventors: Ick-soo Kim, Byoung-Suhk Kim, Kei Watanabe, Naotaka Kimura, Kyu-oh Kim, Jae-hwan Lee