Patents by Inventor Christophe Sinet

Christophe Sinet 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).

  • SINTERED AND DOPED YTTRIUM OXIDE PRODUCT
    Publication number: 20100227754
    Abstract: A sintered yttrium oxide product comprises: • more than 99.5% of yttrium oxide, as a percentage by weight; and • more than 50 ppma and less than 1000 ppma of a dopant selected from Zr&Ogr;2 and/or HfO2; the mean grain size of the doped yttrium oxide product being more than 0.03 ?m and less than 5 ?m.
    Type: Application
    Filed: March 19, 2007
    Publication date: September 9, 2010
    Applicant: Saint-Gobain Centre De Recherches et D'Etudes Europeen
    Inventors: Guillaume Bernard-Granger, Christophe Sinet
  • SINTERED ALUMINA PRODUCT THAT IS TRANSPARENT TO INFRARED RADIATION
    Publication number: 20090220787
    Abstract: A sintered alumina product includes, as a percentage by weight, more than 99.95% of alumina (Al2O3), the grain size of the alumina being in the range 0.2 ?m to 1.5 ?m, and has a density greater than 99.95% of the theoretical density of the alumina.
    Type: Application
    Filed: May 19, 2006
    Publication date: September 3, 2009
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHE ET D'ETUDES EUROPEAN
    Inventors: Guillaume Bernard-Granger, Christophe Sinet
  • SINTERED ALUMINA PRODUCT TRANSPARENT TO INFRARED RADIATION AND IN THE VISIBLE REGION
    Publication number: 20090137380
    Abstract: The invention relates to a sintered alumina product with a density greater than 99.95% of the theoretical density and made for more than 99.95% of its mass from alpha alumina (Al2O3) and a dopant selected from Sm2O3, CaO and mixtures thereof, the amount of dopant being less than 1000 ppma and the mean particle size of the alumina grains being greater than 0.2 and less than 1.5 ?m. Of application to heat targeting windows or missile heads.
    Type: Application
    Filed: December 21, 2006
    Publication date: May 28, 2009
    Applicant: Saint-Gobain Centre De Recherche ET D'Etudes Europeen Les Miroirs
    Inventors: Guillaume Bernard-Granger, Christophe Sinet
  • Optical fiber for a flat-gain optical amplifier
    Patent number: 6175445
    Abstract: The invention relates to an optical fiber having a core based on silica with at least one fluorescent dopant distributed over the entire section of the core, a central zone co-doped with a co-dopant chosen from Al and P, and a peripheral zone co-doped with the other co-dopant chosen from Al and P. The invention can be used in an optical fiber amplifier, and it guarantees good amplifier gain flatness over a wavelength band suitable for WDM transmission.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: January 16, 2001
    Assignee: Alcatel
    Inventors: Bertrand Desthieux, Laurent Gasca, Christian Le Sergent, Christophe Sinet