Patents by Inventor Yannick Begel

Yannick Begel 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).

  • Reversal photographic film for displays
    Patent number: 6127104
    Abstract: The present invention concerns a novel film for light boxes, in particular a reversal film for light box displays comprising a transparent support covered, in order, with a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a blue-sensitive silver halide emulsion layer, the support being covered on at least one of its faces with a layer comprising an opacifying compound in a quantity such that the minimum density of the film is between 0.2 and 0.6. This film also has compatibility with existing processing methods intended for reversal photographic products.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: October 3, 2000
    Assignee: Eastman Kodak Company
    Inventors: Gerard M. Droin, Yannick Begel, Didier M. Chigot
  • Protective top layer and photographic products containing this top layer
    Patent number: 5948606
    Abstract: The present invention concerns a photographic material comprising, in addition to the conventional light-sensitive silver halide layers, a protective top layer.According to the invention, the protective layer comprises, in combination, a surface-active fluorinated polyether and a vinyl polymer.This protective top layer enables the appearance of marks during photographic processing to be prevented without modifying the sensitometric results.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: September 7, 1999
    Assignee: Eastman Kodak Company
    Inventors: Yannick Begel, Francois Jean-Marie Bredoux, Gerard Maurice Droin
  • Product for industrial radiography having improved contrast
    Patent number: 5900357
    Abstract: The present invention concerns a silver halide radiographic product intended for industrial radiography as well as a novel radiographic system and a method for forming the radiographic image.The present invention concerns a photographic product designed to be exposed to X or .gamma. radiation, which comprises a support covered on at least one face with a layer of silver halide emulsion which contains an efficient amount of at least one free spectral sensitizing dye.This product, intended for industrial radiography, exhibits improved contrast.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: May 4, 1999
    Assignee: Eastman Kodak Company
    Inventors: Christiane M. Feumi-Jantou, Gerard M. Droin, Yannick Begel
  • Reversible color photographic product comprising a mixture of emulsions
    Patent number: 5876914
    Abstract: The present invention concerns a color reversible photographic product. In particular, it concerns a silver halide photographic product which comprises a mixture of emulsions containing a tabular grain emulsion. This photographic product improves the rendering of the details of the dye image.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: March 2, 1999
    Assignee: Eastman Kodak Company
    Inventors: Gerard M. Droin, Yannick Begel
  • Color reversible photographic product
    Patent number: 5866311
    Abstract: The present invention concerns a color reversible photographic product In particular, the present invention concerns a new photographic product which has a increase in the exposure latitude of one of the silver halide emulsion layers with which a dye-forming coupler is associated without changing the chromatic balance. This increase in the exposure latitude makes it possible to improve the details of the dye image.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: February 2, 1999
    Assignee: Eastman Kodak Company
    Inventors: Gerard M. Droin, Yannick Begel
  • Method for processing photographic products comprising a fine-grain top layer
    Patent number: 5550010
    Abstract: The present invention relates to a color photographic processing method, and a product for color photography comprising, in addition to the conventional layers of light-sensitive silver halides, a non light-sensitive top layer.The method and photographic product enable sensitivity to be controlled during photographic processing.The invention also makes it possible to prevent deterioration of the processing baths.
    Type: Grant
    Filed: August 31, 1994
    Date of Patent: August 27, 1996
    Assignee: Eastman Kodak Company
    Inventors: Fran.cedilla.ois J. Bredoux, Yannick Begel, Henri Freisz