Patents by Inventor Min Jee Yang

Min Jee Yang 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).

  • Multi-layered carbon substrate for gas diffusion layer
    Patent number: 9799890
    Abstract: Provided is a carbon substrate for a gas diffusion layer of a fuel cell. The carbon substrate has a structure, in which a plurality of unit carbon substrates are stacked. Each of the unit carbon substrates is a plate type substrate having a first surface and a second surface opposite to the first surface. Carbon fibers are randomly arranged on the first surface of the each unit carbon substrate. The number of the carbon fibers arranged in a machine direction of the unit carbon substrate is greater than the number of carbon fibers arranged in a transverse direction of the unit carbon substrate from the first surface to the second surface along a thickness direction of the unit carbon substrate; and, accordingly, an orientation gradient, in which the orientation in the machine direction increases from the first surface to the second surface, is shown.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: October 24, 2017
    Assignee: JNTG Co., Ltd.
    Inventors: Eun Sook Lee, Eun Chong Kim, Tae Hyung Kim, Min Jee Yang, Jy Young Jyoung, Tae Nyun Kim, Sang Wook Jang
  • MULTI-LAYERED CARBON SUBSTRATE FOR GAS DIFFUSION LAYER
    Publication number: 20170301923
    Abstract: Provided is a carbon substrate for a gas diffusion layer of a fuel cell. The carbon substrate has a structure, in which a plurality of unit carbon substrates are stacked. Each of the unit carbon substrates is a plate type substrate having a first surface and a second surface opposite to the first surface. Carbon fibers are randomly arranged on the first surface of the each unit carbon substrate. The number of the carbon fibers arranged in a machine direction of the unit carbon substrate is greater than the number of carbon fibers arranged in a transverse direction of the unit carbon substrate from the first surface to the second surface along a thickness direction of the unit carbon substrate; and, accordingly, an orientation gradient, in which the orientation in the machine direction increases from the first surface to the second surface, is shown.
    Type: Application
    Filed: August 31, 2016
    Publication date: October 19, 2017
    Inventors: Eun Sook Lee, Eun Chong Kim, Tae Hyung Kim, Min Jee Yang, Jy Young Jyoung, Tae Nyun Kim, Sang Wook Jang