Patents by Inventor Gerard A. Friour

Gerard A. Friour 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).

  • Publication number: 20060165921
    Abstract: The present invention relates to an inkjet recording element having very good dye keeping properties in time. Said inkjet recording element comprises a support and at least one ink-receiving layer, said ink-receiving layer comprising at least one hydrosoluble binder and at least one aluminosilicate polymer obtainable by a preparation method consisting in treating an aluminum halide with a mixture of at least one silicon alkoxide only having hydrolyzable substituents and at least one silicon alkoxide having a non-hydrolyzable substituent, with an aqueous alkali in the presence of silanol groups, the aluminum concentration being maintained less than 0.3 mol/l, the Al/Si molar ratio being maintained between 1 and 3.6 and the alkali/Al molar ratio being maintained between 2.3 and 3; and then stirring the resulting mixture at ambient temperature in the presence of silanol groups for long enough to form the hybrid aluminosilicate polymer. The ink-receiving layer also comprises inorganic particles.
    Type: Application
    Filed: July 2, 2004
    Publication date: July 27, 2006
    Inventors: Gerard Friour, Oliver Poncelet
  • Publication number: 20050159506
    Abstract: The present invention relates to ink for inkjet printing providing a printed image having improved stability, demonstrated by improved color fastness in time. Said ink comprises at least particles of a synthetic, substantially amorphous aluminosilicate polymer, the synthetic, substantially amorphous aluminosilicate polymer having an average diameter of 1 to 10 nm, wherein the aluminosilicate polymer exhibits an X-ray diffraction pattern that comprises weak peaks at about 2.2 and 3.3 ?.
    Type: Application
    Filed: January 12, 2005
    Publication date: July 21, 2005
    Inventors: Gerard Friour, Olivier Poncelet
  • Patent number: 5972590
    Abstract: The present invention concerns a radiographic product which makes it possible to obtain an image with no residual yellow coloring. The radiographic product comprises at least one photosensitive silver halide tabular grain emulsion spectrally sensitized with a spectral sensitizing dye in the blue region having an emission peak between 400 and 500 nm, and an optical brightener derived from 4,4'-diaminostilbene disulfonic acid having at least three anionic sulfo groups, put in the photosensitive layer of the radiographic products or in at least one layer situated between the photo-sensitive layer and the support. The radiographic product is applicable to radiographic systems including one or two intensifying screens.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: October 26, 1999
    Assignee: Eastman Kodak Company
    Inventors: Gerard A. Friour, Francoise M. Thomas
  • Patent number: 5424181
    Abstract: The invention concerns a process for obtaining emulsions of the core/shell type having a low fog level.The process consists of precipitating, by the double jet method, a photographic emulsion comprising core-shell silver halide grains, the concentrations of halides varying progressively during at least the formation of the core.Application to reversal or negative photographic products is disclosed.
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: June 13, 1995
    Assignee: Eastman Kodak Company
    Inventors: Philippe Strauel, Gerard A. Friour
  • Patent number: 4865965
    Abstract: This invention is directed to a light sensitive silver halide emulsion comprising a cyclic ether compound having an acid function and to an element containing such emulsion and to a process for using same. The compound comprises, in the cyclic ring, at least two atoms from the group consisting of sulfur and selenium, each of which atoms being separated from one another by a chain of at least two carbon atoms. Such compound acts as a solvent and as a growth modifying agent for silver halide grains. Also described is a process for modifying the growth of silver halide grains.
    Type: Grant
    Filed: May 12, 1988
    Date of Patent: September 12, 1989
    Assignee: Eastman Kodak Company
    Inventors: Gerard Friour, Arthur H. Herz, Christian Paris, Marcel Riveccie
  • Patent number: 4752560
    Abstract: This invention is directed to a photographic element containing a radiation-sensitive silver halide emulsion layer and a cyclic thioether compound comprised of at least one oxygen atom and at least three sulfur atoms, each of said atoms being separated from one another by a divalent alkylene group.
    Type: Grant
    Filed: September 8, 1986
    Date of Patent: June 21, 1988
    Assignee: Eastman Kodak Company
    Inventors: Rejane R. Benard, Gerard Friour, Marcel L. Riveccie