Patents by Inventor Alain Rouault

Alain Rouault 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).

  • Non-plasma CVD method and apparatus of forming Ti1-xA1xN coatings
    Patent number: 6238739
    Abstract: A method for forming a Ti1-xAlxN coating on a part without plasma enhancement, wherein a chemical vapor deposition chamber is heated to 250-500° C.; the part to be coated is heated to 550-650° C. and placed in said chamber; and a mixture of titanium and aluminium chlorides, NH3 and H2 is injected into the chamber. The molar amount of NH3 is greater than the molar amount of chlorides, and the molar amount of hydrogen is over five times greater than the molar amount of chlorides.
    Type: Grant
    Filed: February 2, 1999
    Date of Patent: May 29, 2001
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Roland Madar, Alain Rouault, Elisabeth Blanquet, Claude Bernard, Anne-Marie Dutron
  • Magnetic rare earth/iron/boron and rare earth/cobalt/boron hydrides, the process for their manufacture of the corresponding pulverulent dehydrogenated products
    Patent number: 4663066
    Abstract: New magnetic hydride Nd.sub.2 Fe.sub.14 BH.sub.x (0<x<5) and family corresponding to other rare earths and yttrium. Possible substitution of Fe by Co. Preparation from Nd.sub.2 Fe.sub.14 B by hydrogenation (ambient temperature; pH.sub.2 >20 bar), which can be reversed to give powdered Nd.sub.2 Fe.sub.14 B. Remarkable magnetic properties.
    Type: Grant
    Filed: June 19, 1985
    Date of Patent: May 5, 1987
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Robert Fruchart, Roland Madar, Alain Rouault, Philippe L'Heritier, Pierre Taunier, Daniel Boursier, Daniel Fruchart, Patrick Chaudouet