Patents by Inventor Ivano Delpato

Ivano Delpato 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).

  • Silver halide color photographic light-sensitive material
    Patent number: 4908302
    Abstract: Light-sensitive silver halide color photographic material comprising a support base having coated thereon at least one silver halide emulsion layer containing a diketomethylene yellow dye forming coupler having in the active coupling position thereof a group providing a compound with development inhibiting properties when the group is released from the active coupling position upon color development reaction, wherein said group corresponds to a 1-(fluoroalkylsubstituted-phenyl)- tetrazolyl-5-thio group.
    Type: Grant
    Filed: October 27, 1988
    Date of Patent: March 13, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Ivano Delpato