Patents by Inventor Je-Wung Lee

Je-Wung Lee 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).

  • Biaxially oriented polyester film containing an aluminum hydrate
    Patent number: 5580652
    Abstract: The present invention relates to a biaxially oriented polyester film comprising the inorganic particulate slip agent of aluminum hydroxide or .THETA.-alumina having an average diameter ranging from 0.1005 to 3 .mu.m and Mohs hardness of 6 or more, in an amount ranging from 0.01 to 4 wt % based on the weight of the polyester, which has improved surface properties, abrasion resistance and scratch resistance.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: December 3, 1996
    Assignee: SKC Limited
    Inventors: Young-Jin Lee, Kwang-Hyung Lee, Seung-Soo Woo, Je-Wung Lee, Joon-Hee Han, Nam-Il Kim