Patents by Inventor Yves Laurent
Yves Laurent 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).
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Patent number: 8663855Abstract: A hydrogen-air fuel cell having a mobile element capable of, in closed position, covering the cell cathode in substantially tight fashion.Type: GrantFiled: December 23, 2008Date of Patent: March 4, 2014Assignees: STMicroelectronics (Tours) SAS, Commissariat à l'Energie Atomique et aux Énergies AlternativesInventors: Mathieu Roy, Jean-Yves Laurent
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Publication number: 20130293258Abstract: The invention relates to a method for detecting a defect on the DC power supply bus of a power converter connected to an electrical distribution network (RD). The method comprises steps of: determination of a mean value ( V) of the voltage (Vbus) of the DC power supply bus of the converter, determination of the ripple ({tilde over (V)}ppH1) of the voltage (Vbus) of the DC power supply bus, monitoring of the variation of the said mean value ( V) with respect to the said ripple ({tilde over (V)}ppH1), determination of a defect on the DC power supply bus as a function of the rate of the said variation, the said defect consisting of an anomaly on the inductor (L1) of the DC power supply bus, a power overload of the power converter, or advanced wear of the bus capacitor (Cbus).Type: ApplicationFiled: April 5, 2013Publication date: November 7, 2013Applicant: Schneider Toshiba Inverter Europe SASInventors: David LECHAT, Yves Laurent Allaert
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Publication number: 20130241790Abstract: The antenna comprises a metal excitation loop (B1) to be positioned at a height (h) of at least about 1 above the surface (SM) of a conducting medium (M) and a supply means (A, L1n) to be connected to the conducting medium. The perimeter of the loop is about one half of the operating wavelength, namely ?/2, in length. The loop comprises two approximately parallel portions (I1p-I1n, S1) which are at most about ?/50 apart and are capable of extending approximately parallel to said surface in a plane approximately perpendicular to said surface, currents of opposite direction flowing through said portions. The closest portion to said surface includes an aperture between ends (E1p, E1n) of the loop that are connected to the supply means. The antenna is better protected from space waves and it can be reduced in size by being folded up.Type: ApplicationFiled: October 6, 2011Publication date: September 19, 2013Applicant: TDFInventors: Laurent Prioul, Philippe Piole, Sébastien Palud, Pierre-Yves Jezequel, Jean-Yves Laurent
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Patent number: 8481228Abstract: Disclosed herein is a fuel cell assembly that arranges a plurality of individual fuel cells into an array. The fuel cells are set into openings formed in a frame. The openings are arranged into the array, such as in columns and rows. A rear cover is sealingly attached to the frame, thereby defining a chamber between the frame and a base of the rear cover, where the chamber serves as a manifold. Optional supports extend from the base to the fuel cells. The void forms a fluid manifold for dispersing fuel for the fuel cells from a fuel reservoir to the fuel cells. Alternatively, the rear cover separates the interstitial space between the rear cover and the frame into compartments, which are fluidly interconnected by channels. The array may also include a functional element electrically connected to the fuel cells configured to transfer power an electronic device.Type: GrantFiled: July 10, 2007Date of Patent: July 9, 2013Assignee: Societe BicInventors: Alain Rosenzweig, Kurt Rath, Jean Yves Laurent, Bruno Vallon, Andrew J. Curello
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Publication number: 20130069050Abstract: An optoelectronic device including a first electrode arranged on a substrate, a second electrode that includes a first surface facing the first electrode, and a semiconductor material layer that is in electric contact with the first and second electrodes. The second electrode includes a side wall that is adjacent to the first surface and is covered with the semiconductor material layer by the insertion of a self-assembled monolayer.Type: ApplicationFiled: May 24, 2011Publication date: March 21, 2013Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Jean-Yves Laurent, Jean-Marie Verilhac
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Publication number: 20130059225Abstract: A fuel cell is provided with an individual cell having first and second electrodes and a membrane formed by a polymer electrolyte including an ionically conducting part. The polymer electrolyte includes at least an ionically non-conducting part forming a first inactive area localized on a first uncovered part not covered by the first electrode and/or a second inactive area localized on a second uncovered part not covered by the second electrode. A cover encloses the cell and is provided with an inner wall mechanically fixed onto at least the first or second inactive area by adhesion means.Type: ApplicationFiled: March 21, 2011Publication date: March 7, 2013Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Vincent Faucheux, Antoine Latour, Jean-Yves Laurent, Audrey Martinent
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Publication number: 20120292183Abstract: A water detection device comprising at least one fuel cell comprising a first electrode, a layer of electrolyte, a second electrode and an electrical measurement device characterized in that the first electrode of the cell is in contact with a first face of a porous silicon substrate comprising Si—H bonds, in such a manner as to liberate a flow of hydrogen in the presence of water. Advantageously, the substrate of porous silicon is incorporated into a first housing permeable to water, the fuel cell being incorporated into a second housing said second housing being impermeable to water and permeable to oxygen.Type: ApplicationFiled: January 20, 2011Publication date: November 22, 2012Inventors: Jessica Thery, Philippe Coronel, Vincent Faucheux, Jean-Yves Laurent
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Publication number: 20120230909Abstract: A gas-generating apparatus includes a cartridge including a reservoir having a first reactant and a reaction chamber, and a receiver that can include a flow control device. The receiver is adapted to receive the cartridge and to transport the first reactant to the reaction chamber after connection with the cartridge. The flow control device is adapted to stop the transport of reactant when the pressure in the reaction chamber reaches a predetermined pressure.Type: ApplicationFiled: May 24, 2012Publication date: September 13, 2012Applicants: Commissariat a L'Energie Atomique, Societe BICInventors: Alain Rosenzweig, Jean-yves Laurent, Frédéric Gaillard, Nathalie Giacometti, Paul Adams
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Patent number: 8017283Abstract: An electrode for an alkali fuel cell comprises an active layer formed by a bilayer or by a stack of a plurality of bilayers. Each bilayer is composed of a catalytic layer comprising catalyst particles of nanometric size and of a porous layer comprising two opposite faces one of which is in contact with the catalytic layer. The porous layer is made from a porous composite material comprising a hydroxide ion conducting polymer matrix in which a metallic lattice is formed constituting a plurality of electronically conducting paths connecting the two opposite faces of the porous layer. Advantageously, fabrication of such an electrode is obtained by successively performing vacuum deposition of the catalyst particles and vacuum co-deposition of the hydroxide ion conducting polymer and of the metal on a free surface of a support.Type: GrantFiled: October 18, 2006Date of Patent: September 13, 2011Assignees: Commissariat a l'Energie Atomique, Universite Montpellier II, Centre National de la Recherche ScientifiqueInventors: Audrey Martinent, Jean-Yves Laurent, Max Perrin, Mauricio Schieda, Jean Durand, Stephanie Roualdes
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Patent number: 7993794Abstract: Water produced in a fuel cell is managed and/or regulated by an assembly comprising at least one hydrophobic element and a hydrophilic element. The hydrophilic element is in contact with at least one first area of an outer surface of the cathode. The hydrophobic element covers the whole of a face of the hydrophilic element opposite the outer surface of the cathode and comprises at least one through opening releasing an area of said face of the hydrophilic element.Type: GrantFiled: March 8, 2007Date of Patent: August 9, 2011Assignee: Commissariat à l'Energie AtomiqueInventors: Jean-Yves Laurent, Marc Plissonnier, Denis Locatelli, Vincent Faucheux
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Patent number: 7976895Abstract: To prevent the liquid electrolyte from penetrating into the porous support while at the same time preserving or increasing the power density of the fuel cell, before the liquid electrolyte is deposited, at least a part of the walls delineating the pores of said support is covered by a film formed by a material presenting a contact angle of more than 90° with a drop of said liquid electrolyte. Said film further presents a thickness enabling passage of the reactive fluid in the pores of the support.Type: GrantFiled: July 7, 2008Date of Patent: July 12, 2011Assignee: Commissariat a l 'Energie AtomiqueInventors: Vincent Faucheux, Christelle Laugier, Jean-Yves Laurent, Steve Martin
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Patent number: 7976786Abstract: A device for generating gas by placing a liquid reactant in contact with a solid element, including: a liquid reactant tank, a reaction chamber configured to contain the solid element, an injector configured to inject the liquid reactant onto the solid element, and an outlet port configured to collect the gas generated in the reaction chamber, wherein the tank and the reaction chamber are separated in a sealed manner by a mobile wall, the mobile wall including an outlet port for collecting the gas generated in the reaction chamber, and wherein the injector passes through the mobile wall and configured to move into the solid element.Type: GrantFiled: July 11, 2008Date of Patent: July 12, 2011Assignee: Commissariat a l'Energie AtomiqueInventors: Emmanuel Damery, Jerome Delmas, Jean-Yves Laurent, Bruno Valon
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Publication number: 20110129757Abstract: A fuel cell includes at least one stack the main elements whereof are perpendicular to a support substrate. This stack is provided with an electrolytic membrane situated between a first and second electrode. The first and second electrodes each include a catalytic layer in contact with the electrolytic membrane. Each electrode includes an electrically conductive porous diffusion layer, and each stack is inserted between electrically conductive first and second support partitions perpendicular to the support substrate and constituting current collectors of the stack. The support partitions are electrically insulated from one another.Type: ApplicationFiled: May 7, 2009Publication date: June 2, 2011Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Bernard Diem, Philippe Baclet, Jean Dijon, Jean-Yves Laurent, Pascal Schott
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Patent number: 7939195Abstract: In order to increase the capacity of an “all-solid” type micro-battery, the layer of electrolyte is structured: transversing cavities are created in the flat layer, advantageously at the level of patches of collector material, then filled by anode or cathode material.Type: GrantFiled: December 14, 2005Date of Patent: May 10, 2011Assignee: Commissariat a l'Energie AtomiqueInventors: Raphaël Salot, Frédéric Gaillard, Jean-Sébastien Danel, Jean-Yves Laurent
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Patent number: 7858262Abstract: Adjacent individual cells of a fuel cell are connected in series by intermediate connecting parts. Each connecting part is formed by a branch made from an electrically conducting material and extending the first current collector of a cell perpendicularly and connected to the second current collector of the adjacent cell. Each first current collector is moreover formed by an electrically insulating porous matrix incorporating said electrically conducting material, and the first current collectors of two adjacent cells are separated by an area of electrically insulating porous material, said electrically insulating porous material being identical to that forming the porous matrix of said first current collectors. Series connection between the individual cells of such a fuel cell is thereby easy and quick to implement.Type: GrantFiled: October 31, 2008Date of Patent: December 28, 2010Assignee: Commissariat à l'Energie AtomiqueInventors: Vincent Faucheux, Frédéric Gaillard, Karine Lambert, Jean-Yves Laurent
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Publication number: 20100317411Abstract: A hydrogen-air fuel cell having a mobile element capable of, in closed position, covering the cell cathode in substantially tight fashion.Type: ApplicationFiled: December 23, 2008Publication date: December 16, 2010Applicants: STMicroelectronics (Tours) SAS, Commissariat A L'energie AtomiqueInventors: Mathieu Roy, Jean-Yves Laurent
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Patent number: 7811702Abstract: A microbattery has a support having a front face, a rear face, first and second current collectors arranged on the front face. A stack including a cathode and an anode separated by an electrolyte is arranged on the current collectors. The anode and cathode respectively contact the first and second current collectors. A protective layer covers the stack. The microbattery has connections in contact with the first and second current collectors, passing through the support from the front face to the rear face. The stack substantially covers of the front face of the support. A method for producing the mircobattery includes etching cavities, in the front face of the support, having a depth that is smaller than the thickness of the support, filing of the cavities with a conducting material and removing a layer of the rear face of the support to uncover the conducting material in the cavities.Type: GrantFiled: July 8, 2005Date of Patent: October 12, 2010Assignee: Commissariat à l'Energie AtomiqueInventors: Jean-Yves Laurent, Raphael Salot, Didier Marsacq, Marc Zussy
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Patent number: 7807279Abstract: A microcomponent including: an electrochemical storage source; a first substrate including a first contact face; a second substrate including a second contact face; “at least one internal cavity formed from a first cavity recessed into the first contact face of the first substrate, or from a second cavity recessed into the second contact face of the second substrate, or from the first cavity recessed into the first contact face of the first substrate and the second cavity recessed into the second contact face of the second substrate, wherein the two substrates are integrated together via their respective contact faces and a sealing member, and said internal cavity contains the electrochemical storage source; and electrical connections between the electrochemical storage source and an external environment.Type: GrantFiled: May 17, 2007Date of Patent: October 5, 2010Assignee: Commissariat a l'Energie AtomiqueInventors: Raphael Salot, Frederic Gaillard, Jean-Yves Laurent, Marc Plissonnier
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Publication number: 20100223840Abstract: A gas-generating apparatus includes a cartridge including a reservoir having a first reactant and a reaction chamber, and a receiver that can include a flow control device. The receiver is adapted to receive the cartridge and to transport the first reactant to the reaction chamber after connection with the cartridge. The flow control device is adapted to stop the transport of reactant when the pressure in the reaction chamber reaches a predetermined pressure.Type: ApplicationFiled: May 19, 2010Publication date: September 9, 2010Applicants: Societe BIC, Commissariat a L'Energie AtomiqueInventors: Alain Rosenzweig, Jean-yves Laurent, Frédéric Gaillard, Nathalie Giacometti, Paul Adams
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Patent number: 7763233Abstract: A device for generating hydrogen by hydrolysis of a hydride comprising a reactor containing the hydride in solid form, in the divided state or not, and comprising at least one orifice for removing the hydrogen produced; means for releasing the water required for the hydrolysis reaction; and at least one envelope suitable for isolating the hydride from the water required for the hydrolysis reaction, the envelope being made from a consumable material. According to the present invention, the envelope is suitable for contacting the water with the hydride in a site capable of serving as the seat of the hydrolysis reaction and of moving in the reactor as the material constituting the envelope is consumed by the hydrolysis reaction products.Type: GrantFiled: April 25, 2008Date of Patent: July 27, 2010Assignee: Commissariat a l'Energie AtomiqueInventors: Jean-Yves Laurent, Frédéric Gaillard, Philippe Capron, Denis Locatelli