Patents by Inventor Laurent Dubost

Laurent Dubost 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).

  • Patent number: 11594735
    Abstract: A metal foil including on at least one of its sides a layer of a material including: a metal or a metal alloy, carbon, hydrogen, and optionally oxygen, the atomic percentage of the metal or of the metals of the alloy in the material ranging from 10 to 60%, the atomic percentage of carbon in the material ranging from 35 to 70%, the atomic percentage of hydrogen in the material ranging from 2 to 20%, and the atomic percentage of oxygen if present in the material being less than or equal to 10%. The metal foil can be used in the manufacture of a cathode of a lithium-ion electrochemical cell. The deposition of this layer reduces the internal resistance of the cell.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: February 28, 2023
    Assignee: H.E.F.
    Inventors: Celine Lavaud, Cecile Tessier, Laurent Dubost, Michel Joseph Pierre Marie Martin
  • Publication number: 20220373718
    Abstract: The present invention relates to an optical device (1) suitable for transmitting/reflecting electromagnetic radiation in a wavelength range of the electromagnetic spectrum, said device (1) comprising at least: a first coating layer (10) made of a first material, a substrate (50) made of a material that is different from the first material, and surface texturing (60) forming cavities (61) in the device (1); wherein a lower layer (50) disposed directly below the first coating layer (10) is either a second coating layer (20) made of a material that is different from the first material, or the substrate (50); wherein the lower layer (50) has a determined thickness (E50); characterised in that the cavities (61) extend through the coating layer (20) and are sunk into the lower layer (50) through at least part of the thickness (E50).
    Type: Application
    Filed: October 26, 2020
    Publication date: November 24, 2022
    Applicants: Hydromecanique et Frottement, Manutech-USD, Université Jean Monnet Saint-Etienne, Centre National de la Recherche Scientifique
    Inventors: Thomas KÄMPFE, Laurent DUBOST, Xxx SEDAO
  • Publication number: 20220365249
    Abstract: The present invention relates to an optical device (1), suitable for transmitting/reflecting electromagnetic radiation in a wavelength range of the electromagnetic spectrum, said device (1) comprising at least: a substrate (10) made of a first material, a coating layer (20) made of a second material that is different from the first material, and surface texturing (30) forming cavities (31) in the device (1), characterized in that the cavities (31) extend through the coating layer (20) and are partially sunk into the substrate (10).
    Type: Application
    Filed: October 26, 2020
    Publication date: November 17, 2022
    Applicants: Hydromecanique et Frottement, Manutech-USD, Université Jean Monnet Saint-Etienne, Centre National de la Recherche Scientifique
    Inventors: Thomas KÄMPFE, Laurent DUBOST, Xxx SEDAO
  • Patent number: 10969678
    Abstract: The invention relates to a system (2) for producing an optical mask (35) for surface treatment, in particular surface microtexturing, said system (2) comprising: a layer of material (20) which has an outer surface (21) that is exposed to the outside environment; and a generating and depositing device for generating and depositing droplets (30) on the outer surface (21) of the layer of material (20) in which a specific arrangement (31), forming the optical mask (35) on the outer surface (21) of the layer of material (20). The invention also relates to a treatment plant comprising a system (2) of said type. The invention further relates to a method for producing a mask as well as to a method for surface treatment.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: April 6, 2021
    Assignees: H.E.F., Universite Jean Monnet Saint Etienne, Centre National De La Recherche Scientifique (CNRS)
    Inventors: Maxime Bichotte, Yves Jourlin, Laurent Dubost
  • Patent number: 10969679
    Abstract: The invention relates to a system (2) for producing an optical mask (35) for surface microtexturing, said system (2) comprising: a substrate (10) having a surface (11) that is to be textured; a layer of material (20) which covers the surface (11) of the substrate (10) and has an outer surface (21) that is exposed to the outside environment; and a generating and depositing device for generating and depositing droplets (30) on the outer surface (21) of the layer of material (20), in a specific arrangement (31) under condensation, forming the optical mask (35) on the outer surface (21) of the layer of material (20). The invention also relates to a treatment plant comprising a system (2) of said type. The invention further relates to a method for producing a mask as well as to a surface microtexturing method.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: April 6, 2021
    Assignees: H.E.F., Universite Jean Monnet Saint Etienne, Centre National De La Recherche Scientifique (CNRS)
    Inventors: Maxime Bichotte, Yves Jourlin, Laurent Dubost
  • Publication number: 20200274168
    Abstract: A metal foil including on at least one of its sides a layer of a material including: a metal or a metal alloy, carbon, hydrogen, and optionally oxygen, the atomic percentage of the metal or of the metals of the alloy in the material ranging from 10 to 60%, the atomic percentage of carbon in the material ranging from 35 to 70%, the atomic percentage of hydrogen in the material ranging from 2 to 20%, and the atomic percentage of oxygen if present in the material being less than or equal to 10%. The metal foil can be used in the manufacture of a cathode of a lithium-ion electrochemical cell. The deposition of this layer reduces the internal resistance of the cell.
    Type: Application
    Filed: February 20, 2020
    Publication date: August 27, 2020
    Applicants: SAFT, H.E.F.
    Inventors: Celine LAVAUD, Cecile TESSIER, Laurent DUBOST, Michel Joseph Pierre Marie MARTIN
  • Publication number: 20190187567
    Abstract: The invention relates to a system (2) for producing an optical mask (35) for surface microtexturing, said system (2) comprising: a substrate (10) having a surface (11) that is to be textured; a layer of material (20) which covers the surface (11) of the substrate (10) and has an outer surface (21) that is exposed to the outside environment; and a generating and depositing device for generating and depositing droplets (30) on the outer surface (21) of the layer of material (20), in a specific arrangement (31) under condensation, forming the optical mask (35) on the outer surface (21) of the layer of material (20). The invention also relates to a treatment plant comprising a system (2) of said type. The invention further relates to a method for producing a mask as well as to a surface microtexturing method.
    Type: Application
    Filed: June 21, 2017
    Publication date: June 20, 2019
    Applicants: H.E.F., UNIVERSITE JEAN MONNET SAINT ETIENNE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
    Inventors: Maxime BICHOTTE, Yves JOURLIN, Laurent DUBOST
  • Publication number: 20190187554
    Abstract: The invention relates to a system (2) for producing an optical mask (35) for surface treatment, in particular surface microtexturing, said system (2) comprising: a layer of material (20) which has an outer surface (21) that is exposed to the outside environment; and a generating and depositing device for generating and depositing droplets (30) on the outer surface (21) of the layer of material (20) in which a specific arrangement (31), forming the optical mask (35) on the outer surface (21) of the layer of material (20). The invention also relates to a treatment plant comprising a system (2) of said type. The invention further relates to a method for producing a mask as well as to a method for surface treatment.
    Type: Application
    Filed: June 21, 2017
    Publication date: June 20, 2019
    Applicants: H.E.F., UNIVERSITE JEAN MONNET SAINT ETIENNE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
    Inventors: Maxime BICHOTTE, Yves JOURLIN, Laurent DUBOST
  • Publication number: 20060016398
    Abstract: A pin assembly for lifting and supporting substrates according to the invention comprises a roller glide for a lift pin with rollers reducing the friction of the vertical pin movement, a ball bearing sole plate with elastic suspension for re-centering the sole plate after one coating cycle and a ball-bearing pin head that lowers the friction between the pin and the substrate and minimizes lateral forces that the substrate can apply on the pin.
    Type: Application
    Filed: May 25, 2005
    Publication date: January 26, 2006
    Inventors: Laurent Dubost, Sylvain Hernandez, Hans Jaeger, Karine Landry, Bertrand Vinel, Eugene Zapodeanu, Jacques Schmitt, Redouane EL Bouchikhy
  • Patent number: 5511004
    Abstract: The method of the invention establishes a reference state and a current state for an industrial evolutionary process from physical parameters measured on all the equipment items employing the evaluating process. These two states are compared, parameter by parameter, by resorting to fuzzy logic for classifying the quantities, and a diagnosis is established using expert rules.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: April 23, 1996
    Assignee: Thomson-CSF
    Inventors: Laurent Dubost, Jean-Noel Heude