Patents by Inventor Roy O. Hopkins

Roy O. Hopkins 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).

  • Coating apparatus and method
    Patent number: 5484629
    Abstract: A coating apparatus (10) for coating a radiation-sensitive emulsion (30) on a photographic support (24) is fabricated from hopper bars (12) having a ceramic coating surface (20). An initial surface finish treatment is first applied to the ceramic coating surface, after which the coating surface is polished, to decrease the roughness of the coating surface sufficiently to prevent the formation of streaks in the emulsion coating layer or layers on the support.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: January 16, 1996
    Assignee: Eastman Kodak Company
    Inventors: Syamal K. Ghosh, Roy O. Hopkins, Kenneth G. Budinski, Mark S. Kohler