Patents by Inventor Riccardo Gallesio

Riccardo Gallesio 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).

  • Light-sensitive silver halide photographic elements
    Patent number: 5246824
    Abstract: Light-sensitive silver halide photographic elements are disclosed comprising a support and silver halide emulsion layer or layers, wherein at least one of said silver halide emulsion layers contains tabular silver halide grains having an average diameter:thickness ratio of at least 3:1 and highly deionized gelatin hardened with a compound of formula (CH.sub.2 .dbd.CH--SO.sub.2 --).sub.n --A, wherein A is an n-valent organic group containing at least one hydroxy group and n is 2,3 or 4.The light-sensitive materials can be advantageously used in high temperature processing in automatic processors which include transporting rollers and have good characteristics of resistance to pressure marking.
    Type: Grant
    Filed: January 22, 1992
    Date of Patent: September 21, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Gerolamno Delfino, Riccardo Gallesio