Patents by Inventor Jonathan Lee Barnes

Jonathan Lee Barnes 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).

  • Image forming apparatus component with triboelectric properties
    Patent number: 8038591
    Abstract: The present disclosure relates to an image forming device component that includes an elastomeric material having a surface and a triboelectric charging material that may be exposed on the elastomeric material surface. The triboelectric material may be exposed by a finishing process that results in removal of a portion of the material leaving voids in the surface. The surface may have a surface roughness in the range of about 0.1 to 5.0 Ra. The component may include a developer roller in an electrophotograhic printer and may provide contact electrification to a given toner during a printing operation.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: October 18, 2011
    Assignee: Lexmark International, Inc.
    Inventors: Jonathan Lee Barnes, Jenny Marie Berens, Bhaskar Gopalanarayanan, Jason Edward Gordon, David Starling MacMillan, Gregory Lawrence Ream, Ronald Lloyd Roe
  • Image Forming Apparatus Component With Triboelectric Properties
    Publication number: 20080240810
    Abstract: The present disclosure relates to an image forming device component that includes an elastomeric material having a surface and a triboelectric charging material that may be exposed on the elastomeric material surface. The triboelectric material may be exposed by a finishing process that results in removal of a portion of the material leaving voids in the surface. The surface may have a surface roughness in the range of about 0.1 to 5.0 Ra. The component may include a developer roller in an electrophotograhic printer and may provide contact electrification to a given toner during a printing operation.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 2, 2008
    Inventors: Jonathan Lee Barnes, Jenny Marie Berens, Bhaskar Gopalanarayanan, Jason Edward Gordon, David Starling MacMillan, Gregory Lawrence Ream, Ronald Lloyd Roe