Patents by Inventor Marcello Amicucci

Marcello Amicucci 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).

  • Photographic elements comprising light-sensitive silver bromo-iodide emulsions
    Patent number: 4952489
    Abstract: A light-sensitive emulsion layer comprising a dispersing medium and silver halide grains, wherein at least 10% of the total projected area of the silver halide grains is formed by silver bromo-iodide grains bounded by at least one substantially concave-shaped major crystal face, having a diameter of at least 0.6 .mu.m and the half of their thickness, in the deepest point of said concavity, of less than 80% of the half of their border thickness. Photographic elements comprising a support base and at least one such emulsion layer are shown.
    Type: Grant
    Filed: July 8, 1988
    Date of Patent: August 28, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Marcello Amicucci