Patents by Inventor Richard E. Gilson

Richard E. Gilson 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).

  • Treated anodized aluminum support and lithographic printing plate containing same
    Patent number: 4983497
    Abstract: A lithographic printing plate support material comprising an anodized aluminum plate having an anodic layer, a silicate layer in contact with the anodic layer, and a metal salt layer, in contact with the silicate layer, which comprises a metal salt having the formula MX wherein M is a metal selected from the group consisting of zinc, magnesium, nickel, and chromium, and X is an anion selected from the group consisting of acetate, chloride, and borate. A method for preparing the support material comprises the steps of contacting an anodized aluminum plate with a silicating agent and contacting the silicated plate with the above-described metal salt. Lithographic printing plates comprising the above-described support material and a radiation-sensitive layer exhibit improved press sensitivity and extended shelf-life.
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: January 8, 1991
    Assignee: Eastman Kodak Company
    Inventors: Richard E. Gilson, Gary R. Miller
  • Anodized aluminum support, method for the preparation thereof and lithographic printing plate containing same
    Patent number: 4647346
    Abstract: In an anodized aluminum support for use in a lithographic printing plate comprising an anodic surface stratum consisting essentially of oxides and phosphates of aluminum; the improvement wherein said surface stratum has an average thickness greater than 0.50 micrometers, is present in a coverage of greater than 600 milligrams per square meter of support, and has a web-like surface structure characterized by the presence of a multiplicity of interlacing filaments having average widths within the range of from about 0.03 to about 0.15 micrometers. The support is prepared by a process of anodically oxidizing at least one surface of an aluminum plate in an aqueous electrolyte, wherein the electrolyte comprises from about 15 to 30% phosphoric acid by weight, and the anodic oxidation is carried out at an anodizing voltage of at least about 50 volts at an electrolyte temperature of from about 25.degree. C. to about 50.degree. C. and at an anodizing condition of at least 2.5 amp.multidot.min/dm.sup.2.
    Type: Grant
    Filed: October 10, 1985
    Date of Patent: March 3, 1987
    Assignee: Eastman Kodak Company
    Inventors: Gary R. Miller, Richard E. Gilson
  • Subbed lithographic printing plate
    Patent number: 4640886
    Abstract: A lithographic printing plate comprises an anodized aluminum support material, a radiation-sensitive layer and a hydrophilic subbing layer containing benzoic acid in an amount sufficient to improve the incubation stability of the plate.
    Type: Grant
    Filed: October 10, 1985
    Date of Patent: February 3, 1987
    Assignee: Eastman Kodak Company
    Inventors: Gary R. Miller, Richard E. Gilson