Patents by Inventor Bernard Raveau

Bernard Raveau 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).

  • Ceramic composition containing a tungsten tetragonal bronze phase with a high dielectric constant
    Patent number: 5037784
    Abstract: The invention relates to a ceramic composition.It comprises at least one phase of a structure derived from that of tungsten tetragonal bronze and at least one phase of a structure derived from Perovskite.Application to the electrical and electronics industry.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: August 6, 1991
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Bernard Raveau, Gilbert Desgardin, Brahim Boufrou
  • Superconducting DC SQUID magnetometer working in liquid nitrogen
    Patent number: 4923850
    Abstract: A superconducting magnetometer, using a superconducting compound at the temperature of liquid nitrogen, is disclosed. It consists in the use, as a sensitive element, of a piece of superconducting material with a central constriction enabling the demarcation of a channel in which the number of useful, intrinsic loops is sufficiently limited for the sensitive element to behave like a DC SQUID with a single loop.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: May 8, 1990
    Assignee: Thomson-CSF
    Inventors: Ronan Stephan, Martine Doisy, Yves Montfort, Didier Robbes, Marc L. C. Sing, Daniel Bloyet, Jackie Provost, Bernard Raveau
  • Superconductive mixed valence copper oxide, and method of making it
    Patent number: 4843059
    Abstract: A superconducting mixed valence copper oxide, having a formula of the type:(La.sub.2-x (Y.sub.x" Bi.sub.1-x").sub.x' Sr.sub.x-x').sub.1-e CuO.sub.4-y,where:0.ltoreq.x<0.30.ltoreq.x'.ltoreq.0.2 with x'<x0.ltoreq.x".ltoreq.10<y.ltoreq.0.10.ltoreq.e.ltoreq.0.005.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: June 27, 1989
    Assignee: Compagnie Generale D'Electricite
    Inventors: Francis Deslandes, Claude Michel, Jackie Provost, Bernard Raveau, Andre Sulpice, Jean-Louis Tholence, Bernard Chevalier