Patents by Inventor Roger J. Owers

Roger J. Owers 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).

  • Patent number: 6709808
    Abstract: Image-forming materials including photographic, thermographic, and thermally-developable imaging materials include one or more transparent electrically conductive, non-charging layers to provide antistatic control on one or both sides of subbed or unsubbed supports. The electrically conductive, non-charging layers comprise colloidal, electrically conductive polymer particles that can be dispersed in a film-forming binder in an amount to provide from about 10 to about 90 volume % of polymer particles. Particularly useful polymer particles include pyrrole-containing, thiophene-containing, and aniline-containing polymers. The particles generally exhibit a packed powder specific resistivity of 105 ohm-cm or less and generally have a mean diameter of 0.5 &mgr;m or less. The electrically conductive, non-charging layers generally exhibit a surface electrical resistivity of less than 1×1012 ohm per square.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: March 23, 2004
    Assignee: Eastman Kodak Company
    Inventors: Mark Lelental, Gary M. Mosehauer, Roger J. Owers, James L. Wakley
  • Publication number: 20030008247
    Abstract: Image-forming materials including photographic, thermographic, and thermally-developable imaging materials include one or more transparent electrically conductive, non-charging layers to provide antistatic control on one or both sides of subbed or unsubbed supports. The electrically conductive, non-charging layers comprise colloidal, electrically conductive polymer particles that can be dispersed in a film-forming binder in an amount to provide from about 10 to about 90 volume % of polymer particles. Particularly useful polymer particles include pyrrole-containing, thiophene-containing, and aniline-containing polymers. The particles generally exhibit a packed powder specific resistivity of 105 ohm-cm or less and generally have a mean diameter of 0.5 &mgr;m or less. The electrically conductive, non-charging layers generally exhibit a surface electrical resistivity of less than 1×1012 ohm per square.
    Type: Application
    Filed: May 6, 2002
    Publication date: January 9, 2003
    Inventors: Mark Lelental, Gary M. Mosehauer, Roger J. Owers, James L. Wakley
  • Patent number: 5888712
    Abstract: The present invention is a multilayer imaging element which includes a support, one or more image-forming layers super posed on the support; and an outermost transparent electrically-conductive, non-charging, overcoat layer superposed on the support. The outermost transparent electrically-conductive, non-charging overcoat layer includes colloidal, electrically-conductive metal-containing granular particles, dispersed in a film-forming binder at a volume percentage of conductive metal-containing particles of from 20 to 80 and a first charge control agent which imparts positive charging properties and a second charge control agent which imparts negative charging properties.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: March 30, 1999
    Assignee: Eastman Kodak Company
    Inventors: Mark Lelental, Michael W. Orem, Paul A. Christian, Roger J. Owers
  • Patent number: 5322759
    Abstract: A photographic donor material useful in forming continuous tone images in a silver salt diffusion transfer process is comprised of a support; a photosensitive silver halide emulsion layer in which the silver halide is at least 80% silver chloride and is substantially free of iodide; and, located between the photosensitive silver halide emulsion layer and the support, a silver halide emulsion layer which is non-photosensitive under the conditions in which the donor material is used.
    Type: Grant
    Filed: November 9, 1992
    Date of Patent: June 21, 1994
    Assignee: Eastman Kodak Company
    Inventors: Anthony M. Barnett, David A. Hallbery, Roger J. Owers