Patents by Inventor John F. Corman

John F. Corman 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).

  • Thermal printing ribbon
    Patent number: 7226890
    Abstract: A thermal printing ribbon that has reduced or no wrinkling during printing includes inorganic particles in a polymeric host material in at least one layer of the ribbon. The ribbon has improved mechanical and thermal properties as compared to ribbons not incorporating the inorganic particles. The ribbon can be used to form images on a dye-receiver element wherein the images have few or no artifacts caused by wrinkling of the thermal printing ribbon. The ribbon can be used in high speed printing.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: June 5, 2007
    Assignee: Eastman Kodak Company
    Inventors: Zhanjun Gao, Yuanqiao Rao, William H. Simpson, Debasis Majumdar, John F. Corman
  • Preventing crease formation in donor web in dye transfer printer that can cause line artifact on print
    Patent number: 6859221
    Abstract: A thermal printer capable of preventing crease formation in a dye transfer area of a dye donor web that can cause a line artifact to be printed on a dye receiver during a dye transfer from the dye transfer area to the dye receiver, includes a print head having a bead of selectively heated resistive elements that make contact across the dye transfer area of the dye donor web and opposite edge areas of the dye donor web that are alongside the dye transfer area as the dye transfer area and the edge areas are progressively advanced under a longitudinal tension over the bead of resistive elements.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: February 22, 2005
    Assignee: Eastman Kodak Company
    Inventors: Zhanjun J. Gao, Robert F. Mindler, John F. Corman
  • Preventing crease formation in donor web in dye transfer printer that can cause line artifact on print
    Publication number: 20040183888
    Abstract: A thermal printer capable of preventing crease formation in a dye transfer area of a dye donor web that can cause a line artifact to be printed on a dye receiver during a dye transfer from the dye transfer area to the dye receiver, includes a print head having a bead of selectively heated resistive elements that make contact across the dye transfer area of the dye donor web and opposite edge areas of the dye donor web that are alongside the dye transfer area as the dye transfer area and the edge areas are progressively advanced under a longitudinal tension over the bead of resistive elements.
    Type: Application
    Filed: March 18, 2003
    Publication date: September 23, 2004
    Applicant: Eastman Kodak Company
    Inventors: Zhanjun J. Gao, Robert F. Mindler, John F. Corman
  • Preventing crease formation in donor web in dye transfer printer that can cause line artifact on print
    Patent number: 6762783
    Abstract: A thermal printer is adapted to prevent crease formation in a dye transfer area of a dye donor web that can cause line artifacts to be printed on a dye receiver during a dye transfer from the dye transfer area to the dye receiver in a dye transfer printer.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: July 13, 2004
    Assignee: Eastman Kodak Company
    Inventors: Zhanjun J. Gao, John F. Corman, Robert F. Mindler
  • Preventing crease formation in donor web in dye transfer printer that can cause line artifact on print
    Patent number: 6757003
    Abstract: A thermal printer is adapted to prevent crease formation in a dye transfer area of a dye donor web that can cause line artifacts to be printed on a dye receiver during a dye transfer from the dye transfer area to the dye receiver in a dye transfer printer.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: June 29, 2004
    Assignee: Eastman Kodak Company
    Inventors: Zhanjun J. Gao, John F. Corman, Robert F. Mindler, Po-Jen Shih, Theodore J. Skomsky