Patents by Inventor Mark Gelin

Mark Gelin 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).

  • Donor rolls and methods of making donor rolls
    Patent number: 6327452
    Abstract: A roller includes a core and a ceramic coating formed over the core. The roller has a composite runout of less than 20 &mgr;m and a total indicator reading runout of less than 7 &mgr;m. The ceramic coating has a smooth finish and has controlled electric properties. This roller can be used as a donor roller for transporting toner to a photoconductive member so as to achieve high-quality image development.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: December 4, 2001
    Assignee: Xerox Corporation
    Inventors: Timothy R. Jaskowiak, Ann M. Kazakos, Joy L. Longhenry, Michelle L. Schlafer, Grethel K. Mulroy, Thomas L. DiGravio, Kevin H. Taft, Frederick B. White, Mark Gelin