Patents by Inventor Jacob J. Hastreiter

Jacob J. Hastreiter 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: 5283226
    Abstract: This invention relates to a process of preparing a dye-donor element used in thermal dye-transfer processing comprising:a) coating a support with a dye layer comprising an image dye dispersed in a binder, the binder comprising a hydrophilic polymer coated from an aqueous solution containing a surfactant;b) washing the dye-donor element with water to remove residual surfactant in the dye layer; andc) drying the dye-donor element.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: February 1, 1994
    Assignee: Eastman Kodak Company
    Inventors: William H. Simpson, Jacob J. Hastreiter, Jr.
  • Patent number: 5219717
    Abstract: The invention is accomplished by providing an iodide ion absorbing method and article. The article is a composite article comprising a surfactant, an iodide absorbing medium, and a polymer that is permeable to iodide ion overlaying the iodide absorbing medium. In a preferred embodiment of the invention the polymer is an ionic polymer and the surfactant is an ionic surfactant with a charge opposite to that of the polymer. The surfactant can be incorporated in the absorbing medium, in the polymer, or it can overlay the polymer. In a preferred form of the invention, a substrate is coated with the iodide absorbing medium, a layer of an ionic polymer is overlaid on the absorbing medium, and a layer incorporating an ionic surfactant is overlaid onto the polymer. The ionic surfactant also may be placed in a layer between the polymer and the absorbing medium. A preferred absorbing medium is silver bromide.
    Type: Grant
    Filed: January 2, 1992
    Date of Patent: June 15, 1993
    Assignee: Eastman Kodak Company
    Inventors: Eric R. Schmittou, Glenn T. Pearce, Michael R. Roberts, Jacob J. Hastreiter, Jr.
  • Patent number: 4737450
    Abstract: A method for the processing of photographic elements includes a bleach-fixing step utilizing a bleach-fixing composition comprising an aqueous alkaline solution of a peroxy compound and an ammonium or amine salt of a weak acid.
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: April 12, 1988
    Assignee: Eastman Kodak Company
    Inventors: Jeffrey L. Hall, Jacob J. Hastreiter, Jr.
  • Patent number: 4717649
    Abstract: Fast acting and ecologically advantageous compositions for the bleach-fixing of photographic elements are comprised of an aqueous alkaline solution of a peroxy compound and an ammonium or amine salt of a weak acid.
    Type: Grant
    Filed: April 18, 1986
    Date of Patent: January 5, 1988
    Assignee: Eastman Kodak Company
    Inventors: Jeffrey L. Hall, Jacob J. Hastreiter, Jr.