Patents by Inventor Richard Zagroba

Richard Zagroba 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).

  • Process for obtaining a color image with improved resolution
    Patent number: 6143461
    Abstract: The present invention relates to a method for negative a positive image, using a negative acting color proofing element comprising, sequentially, a strippable cover sheet; a crosslinked layer containing a polymer having phenolic groups; a color layer, containing a colorant, a polymeric binder, a polymerizable monomer and, optionally, a photoinitiator; a photoadhering layer containing polymerizable groups, and, optionally, a free radical photoinitiator; and a optional thermoplastic adhesive layer. At least one of the color layer and the photoadhering layer containing the photoinitiator. The element is first exposed to actinic radiation and then laminated to a receiver sheet. The composite peeled apart to thereby form a colored negative image on the receiver sheet.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: November 7, 2000
    Assignee: Agfa Corporation
    Inventors: Shane Hsieh, Rusty Koenigkramer, David Siegfried, Richard Shadrach, Wojciech Wilczak, Richard Zagroba