Patents by Inventor Kun S. Lee

Kun S. 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).

  • High strength and wear resistance copper alloys
    Patent number: 4851191
    Abstract: High strength and high wear resistance copper alloys consisting essentially of (I) 54-66% by weight of Cu, 1.0-5.0% by weight of Al, 1.0-5.0% by weight of Mn, 0.1-2.0% by weight of Si, 0.1-3.0% by weight of Sn, 0.01-1.0% by weight of B, and as the remainder, Zn and inevitable impurities, and (II) 54-66% by weight of Cu, 1.0-5.0% by weight of Al, 1.0-5.0% by weight of Mn, 0.1-2.0% by weight of Si, 0.1-3.0% by weight of Sn, 0.01-1.0% by weight of B, 0.1-4.0% by weight of one or more elements selected from Fe, Ni and Cr, and as the remainder, Zn and inevitable impurities.
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: July 25, 1989
    Assignee: Poong San Metal Corporation
    Inventors: Kun S. Lee, Dong K. Park