Patents by Inventor David Rats

David Rats 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).

  • METHOD FOR MANUFACTURING AN ANNULAR THIN FILM OF SYNTHETIC MATERIAL AND DEVICE FOR CARRYING OUT SAID METHOD
    Publication number: 20190267215
    Abstract: Methods and reactors are disclosed for producing synthetic material on a substrate by microwave plasma activated chemical vapor deposition. The method comprises the step of providing a microwave plasma reactor configured to provide a plasma having a toroidal shape. The reactor comprises a resonant cavity and a substrate holder arranged to hold, preferably, an annular shaped substrate or a plurality of substrates arranged in an annular configuration.
    Type: Application
    Filed: July 18, 2017
    Publication date: August 29, 2019
    Applicant: NEOCOAT SA
    Inventors: David Rats, Medhi Naamoun, Christophe Provent
  • METHOD FOR A DIAMOND VAPOR DEPOSITION
    Publication number: 20160032450
    Abstract: The present invention relates to a method for depositing nanocrystalline diamond using a diamond vapor deposition facility which includes: a vacuum reactor including a reaction chamber connected to a vacuum source; a plurality of plasma sources arranged along a matrix that is at least two-dimensional in the reaction chamber; and a substrate holder arranged in the reactor, said method being characterized in that the deposition is carried out at a temperature of 100 to 500° C.
    Type: Application
    Filed: February 25, 2014
    Publication date: February 4, 2016
    Applicant: NEOCOAT SA
    Inventors: David Rats, Christophe Provent
  • Method of depositing a diamond layer on a titanium substrate
    Patent number: 5925422
    Abstract: A method of manufacturing a metal part coated with a layer of polycrystalline diamond includes fabricating a metal substrate having a surface to be coated, the metal substrate containing titanium, vanadium or alloys thereof; depositing a layer of at least 10% graphitic plus amorphous carbon and designed to diffuse fully through the titanium; and depositing a diamond coating on the carbon layer.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: July 20, 1999
    Assignee: Delegation Generale pour l'Armement
    Inventors: Lionel Vandenbulcke, David Rats, Guy Farges
  • Surface treatment of carbonaceous material for making a subsequent deposit of diamond adherent and diamond-covered pieces obtained
    Patent number: 5705262
    Abstract: The surface treatment of carbonaceous material (1) is characterised in that a layer of SiC (2) is formed on the carbonaceous material (1) by thermochemical conversion of the carbonaceous material (1) by a precursor of Si (4) at a temperature which is higher than the temperature for the formation, from said precursor, of a gaseous reactive intermediate (generally SiO), so as to obtain a surface layer (3) permitting an adherent diamond deposit (3).Pieces which are at least locally coated with `SiC/diamond`.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: January 6, 1998
    Assignee: Le Carbone Lorraine
    Inventors: Pierre Bou, Renee Herbin, David Rats, Lionel Vandenbulcke