Patents by Inventor Suk Hwa You

Suk Hwa You 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).

  • PET nonwoven fabric for separator for secondary battery and separator for secondary battery comprising the same
    Patent number: 9508974
    Abstract: A PET nonwoven fabric for a separator for a secondary battery includes first fibers composed of PET having a melting temperature of 240° C. or more and second fibers composed of PET having a melting temperature of 180˜220° C., respective fibers having two types of fibers having different diameters, and has a fine pore size and uniform pore distribution and exhibits superior surface properties, low surface defects, high mechanical strength and excellent mass production. Even when the temperature of a battery is increased to 200° C. or more, the PET nonwoven fabric has heat resistance which prevents thermal runaway and does not generate melting and shrinking.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: November 29, 2016
    Assignee: TOPTEC HNS CO., LTD.
    Inventors: Hyang Doo Lee, Suk Hwa You, Chun Gi Kang, Seung Yong Jee, Do Hyeuk Hwang, Chang Gyu Ahn, Byoung Min Kwon, Hyun Sook Kim
  • PET NONWOVEN FABRIC FOR SEPARATOR FOR SECONDARY BATTERY AND SEPARATOR FOR SECONDARY BATTERY COMPRISING THE SAME
    Publication number: 20150221916
    Abstract: A PET nonwoven fabric for a separator for a secondary battery includes first fibers composed of PET having a melting temperature of 240° C. or more and second fibers composed of PET having a melting temperature of 180˜220° C., respective fibers having two types of fibers having different diameters, and has a fine pore size and uniform pore distribution and exhibits superior surface properties, low surface defects, high mechanical strength and excellent mass production. Even when the temperature of a battery is increased to 200° C. or more, the PET nonwoven fabric has heat resistance which prevents thermal runaway and does not generate melting and shrinking.
    Type: Application
    Filed: November 9, 2012
    Publication date: August 6, 2015
    Inventors: Hyang Doo Lee, Suk Hwa You, Chun Gi Kang, Seung Yong Jee, Do Hyeuk Hwang, Chang Gyu Ahn, Byoung Min Kwon, Hyun Sook Kim