Patents by Inventor Bonnie R. Hein

Bonnie R. Hein 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).

  • Photosensitive organic semiconductor compositions
    Patent number: 7893428
    Abstract: The present invention relates to a photosensitive organic semiconductor composition comprising an organic p-type semiconductor pigment with a p-type conducting polymer, wherein the ionization potentials of the organic p-type semiconductor pigment and the p-type conducting polymer are nominally equivalent and a photosensitive organic semiconductor composition comprising an organic n-type semiconductor pigment with an n-type conducting polymer, wherein the electron affinities of the organic semiconductor pigment and the conducting polymer are nominally equivalent. The present invention also relates to a p/n heterojunction utilizing the photosensitive organic semiconductor compositions.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: February 22, 2011
    Assignee: Eastman Kodak Company
    Inventors: Jerome R. Lenhard, Wayne T. Ferrar, Katrin I. Parsiegla, Bonnie R. Hein, Shiying Zheng, Michel F. Molaire
  • Photosensitive organic semiconductor compositions
    Patent number: 7268363
    Abstract: The present invention relates to a photosensitive organic semiconductor composition comprising an organic p-type semiconductor pigment with a p-type conducting polymer, wherein the ionization potentials of the organic p-type semiconductor pigment and the p-type conducting polymer are nominally equivalent and a photosensitive organic semiconductor composition comprising an organic n-type semiconductor pigment with an n-type conducting polymer, wherein the electron affinities of the organic semiconductor pigment and the conducting polymer are nominally equivalent. The present invention also relates to a p/n heterojunction utilizing the photosensitive organic semiconductor compositions.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: September 11, 2007
    Assignee: Eastman Kodak Company
    Inventors: Jerome R. Lenhard, Wayne T. Ferrar, Katrin Parsiegla, Bonnie R. Hein, Shiying Zheng, Michel F. Molaire
  • Stabilized photographic element containing infrared sensitizing dye
    Patent number: 5037734
    Abstract: A photographic element is described which comprises a silver halide emulsion layer and a bridged tricarbocyanine infrared sensitizing dye which element is stabilized by a combination of an organic reducing agent and a surface active agent. A stabilized photographic silver halide emulsion melt is also described.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: August 6, 1991
    Assignee: Eastman Kodak Company
    Inventors: Jerome R. Lenhard, Bonnie R. Hein