Patents Assigned to Comissariat a l'Energie Atomique
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Patent number: 10752976Abstract: The present invention is in the field of surfactants to extract a platinum group metal or gold, in particular palladium, from organic compositions. In particular, the invention concerns the use of surfactants to back-extract a platinum group metal or gold, in particular palladium, from organic compositions further comprising an extractant of said platinum group metal or gold, in particular palladium from an aqueous solution.Type: GrantFiled: May 19, 2017Date of Patent: August 25, 2020Assignees: Universite de Strasbourg, Centre National de la Recherche Scientifique, Avignon Universite, Comissariat a l'Energie Atomique et aux Energies AlternativesInventors: Frédéric Jean-Jacques Bihel, Damien Bourgeois, Stéphane Desgranges, Daniel Meyer, Christiane Contino-Pepin, Martine Schmitt, Patrick Hervé Denis Wagner
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Patent number: 10563319Abstract: A process for making at least one porous area (ZP) of a microelectronic structure in at least one part of an conducting active layer (6), the active layer (6) forming a front face of a stack, the stack comprising a back face (2) of conducting material and an insulating layer (4) interposed between the active layer (6) and the back face (2), said process comprising the steps of: a) making at least one contact pad (14) between the back face (2) and the active layer (6) through the insulation layer (2), b) placing the stack into an electrochemical bath, c) applying an electrical current between the back face (2) and the active layer (6) through the contact pad (14) causing porosification of an area (ZP) of the active layer (6) in the vicinity of the contact pad (14), d) forming the microelectronic structure.Type: GrantFiled: October 15, 2014Date of Patent: February 18, 2020Assignee: COMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Eric Ollier, Frederic-Xavier Gaillard, Carine Marcoux
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Patent number: 10365236Abstract: There is provided a Nuclear Magnetic Resonance (NMR) measurement cell for use with a solution enabling the introduction of a gas into said solution. The measurement cell includes at least a detection volume designed to be installed in a static magnetic field of an NMR spectrometer, and includes in said detection volume, a gas introduction zone, a measurement chamber for the solution at a distance from the gas introduction zone and a network of conduits for the solution formed to set up fluid communication between the gas introduction zone and the measurement chamber. The gas introduction zone includes at least one gas inlet in the network of conduits, to generate bubbles in the gas introduction zone only. There is also provided a method of manufacturing such a measurement cell and a measurement assembly including such a measurement cell.Type: GrantFiled: December 16, 2015Date of Patent: July 30, 2019Assignee: Comissariat a l'energie atomique et aux energies alternativesInventors: Alexandre Causier, Patrick Berthault, Thomas Berthelot, Guillaume Carret
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Patent number: 9890180Abstract: A method for preparing oxyborane compounds of formula (I): using carbon dioxide, and the use of the oxyborane compounds obtained in this way for preparing methane derivatives, in particular oxygenated, halogenated or amino derivatives of methane. The methane derivatives obtained in this way can then be used in the production of vitamins, pharmaceutical products, glues, acrylic fibers and synthetic leathers, pesticides, and fertilizers, for example. Also provided is a method for producing vitamins, pharmaceutical products, glues, acrylic fibers, synthetic leathers, pesticides, and fertilizers, for example, including a step of preparing methane derivatives, in particular oxygenated, halogenated or amino derivatives of methane, from oxyborane compounds obtained by the method according to the invention. Further provided is a method of preparing labelled oxyborane compounds and the use of same.Type: GrantFiled: April 1, 2014Date of Patent: February 13, 2018Assignee: Comissariat a L'Energie Atomique et aux Energies AlternativesInventors: Thibault Cantat, Christophe Gomes, Enguerrand Blondiaux, Olivier Jacquet
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Patent number: 9277656Abstract: Method for producing a substrate comprising at least one getter material arranged on the walls of at least one blind hole, comprising at least the steps of: etching the blind hole through a first face of the substrate, depositing a continuous layer of getter material on the whole of the first face of the substrate and at least on the side walls of the blind hole, etching part of the layer of getter material located on the first face of the substrate such that said first face of the substrate is no longer covered by the getter material, in which the step of etching part of the layer of getter material comprises the implementation of an etching by ion beam machining, or chemical-mechanical planarization or polishing.Type: GrantFiled: November 24, 2014Date of Patent: March 1, 2016Assignee: Comissariat a l'énergie atomique et aux énergies alternativesInventors: Sophie Giroud, Christine Ferrandon
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Patent number: 9182268Abstract: The invention relates to a device for mass detection of particles in a fluid medium, including an electromechanical oscillator (7), excitation means (9) fitted so as to cause the said oscillator to vibrate, a fluid supply circuit (5), and a fluid system (11) incorporated in the said oscillator, where the said fluid system (11) is in fluid communication with the fluid supply circuit (5), where the said fluid system (11) includes at least one trapping site (21) configured to trap a particle of interest according to the size of the said particle of interest.Type: GrantFiled: September 27, 2012Date of Patent: November 10, 2015Assignee: Comissariat a l'energie atomique et aux energies alternativesInventors: Gerald Blanco-Gomez, Vincent Agache
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Patent number: 9146252Abstract: An in-plane MEMS or NEMS detection device for measuring displacements directed along a direction including a seismic mass suspended with respect to a substrate, the seismic mass being pivotable about an axis perpendicular to the plane of the substrate, at least one piezoresistive strain gauge mechanically connected to the seismic mass and the substrate, wherein the piezoresistive gauge has a thickness lower than that of the seismic mass, and wherein the axis of the piezoresistive strain gauge is orthogonal to the plane containing the pivot axis and the center of gravity of the seismic mass and the plane is orthogonal to the direction of the displacements to be measured.Type: GrantFiled: October 20, 2010Date of Patent: September 29, 2015Assignee: Comissariat a l'energie atomique et aux energies alternativesInventors: Philippe Robert, Sébastien Hentz
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Patent number: 8898918Abstract: The invention relates, in particular, to an instrument for measuring length, comprising an inductive sensor comprising an elongate body and a tip that is movable along a longitudinal axis. The body contains windings and defines a first cavity receiving a magnetic core. The instrument further comprises a casing which extends the body along the longitudinal axis, and which defines, together with the body, a second sealed cavity containing the tip. The capacity of the casing to resiliently deform along the longitudinal axis is greater than the capacity of said casing to resiliently deform along axes that are orthogonal to said longitudinal axis.Type: GrantFiled: August 1, 2012Date of Patent: December 2, 2014Assignee: Comissariat a l'Energie Atomique et Aux Energies AlternativesInventor: Frédéric Rodiac
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Patent number: 8822713Abstract: Coordination complexes of at least one metal element with at least one aromatic monomer are provided. The at least one aromatic monomer may comprise at least one aromatic ring, which ring comprising at least one ethylenic group, at least one hydroxide group —OH, at least one oxime group and salts thereof. The metal element may be in the form of a metal alkoxide.Type: GrantFiled: November 17, 2010Date of Patent: September 2, 2014Assignee: Comissariat a l'Energie Atomique et aux Energies AlternativesInventors: Alexia Balland Longeau, Stéphane Cadra, Jérôme Thibonnet
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Patent number: 8609267Abstract: An electrochemical cell comprises an inlet and an outlet for an electrolyte flow, and two unipolar electrodes. Each electrode comprises a structure with a network of through-passages, surrounded by a solid frame. The electrolyte enters via inlets, circulates via the passages of the electrodes, passes through the space between the electrodes and leaves via an outlet. The structure and the frame are based on carbon.Type: GrantFiled: March 23, 2010Date of Patent: December 17, 2013Assignee: Comissariat a l'Energie Atomique et aux Energies AlternativesInventors: Angel Zhivkov Kirchev, Nina Kircheva
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Patent number: 8324073Abstract: A method for producing an electro-mechanical microsystem including movable mechanical parts, said method including a phase of releasing at least one movable mechanical part, wherein the releasing phase includes the following steps: formation of at least one porous zone in a first wafer of a semiconductor material; formation of at least a pattern of a material that makes at least one movable mechanical part on a front face of the first wafer and at least a partial encapsulation of the pattern in a sacrificial layer; release of the movable mechanical part through a rear face of the first wafer throughout the porous zone, using a solvent of the sacrificial layer.Type: GrantFiled: March 10, 2011Date of Patent: December 4, 2012Assignee: Comissariat a l'Energie Atomique et aux Energies AlternativesInventors: Frederic-Xavier Gaillard, Fabrice Nemouchi
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Patent number: 8314846Abstract: The invention relates to matrix image sensors, and it relates more particularly to a method for correcting the spatial noise generated by the dispersion of the physical properties of the different individual sensitive dots, or pixels, of the matrix. For each pixel, in an individual electronic circuit associated with the pixel, a recursively digital method is used to determine an approximate value (Mij,n) of an average of the signal Sij,n obtained from the pixel during this large number of images; the signal obtained from each pixel is corrected according to the determined approximate average value and according to a reference average value (M0), and a corrected signal S*ij,n is transmitted from the circuit associated with the pixel.Type: GrantFiled: March 26, 2008Date of Patent: November 20, 2012Assignee: Comissariat A l'Energie AtomiqueInventor: Gilles Chamming's
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Publication number: 20120224981Abstract: A method for producing at least one deformable membrane micropump including a first substrate and a second substrate assembled together, the first substrate including at least one cavity and the second substrate including at least one deformable membrane arranged facing the cavity. In the method: the cavity is produced in the first substrate; then the first and second substrates are assembled together; then the deformable membrane is produced in the second substrate.Type: ApplicationFiled: November 12, 2010Publication date: September 6, 2012Applicant: Comissariat a l'energie atomique et aux energies alternativesInventors: Yves Fouillet, Francois Baleras, Martine Cochet, Sandrine Maubert
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Publication number: 20120142086Abstract: The invention relates to an imaging system and an associated device for detecting a sample (4). The imaging system comprises a matrix (24) of photosensors (26), a first lamina (28) disposed opposite the matrix (24) of photosensors defining a face (28A) for supporting the sample, and a set (30) of optical elements, disposed between the matrix (24) of photosensors and the first lamina (28). Each microlens (34) is disposed above a photosensor (26) of the matrix (24) of photosensors. The set (30) of optical elements comprises a matrix (32) of microlenses (34). The set (30) of optical elements comprises an optical medium (36) disposed between the matrix (32) of microlenses and the first lamina (28), the refractive index of the optical medium (36) being substantially between 1 and the refractive index of the microlenses (34).Type: ApplicationFiled: June 2, 2010Publication date: June 7, 2012Applicant: COMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Vincent Haguet, Marion Gabriel, François Chatelain, Nathalie Picolletd'Hahan
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Publication number: 20110006263Abstract: A method for preparing an exfoliated vermiculite, comprising the following steps: (a) a step of heating a non-exfoliated hydrated vermiculite at a temperature extending from 400 to 600° C. for a period extending from 3 hours to 7 hours, in this way generating a dehydrated vermiculite; and (b) a step of contacting the dehydrated vermiculite with a solution containing an intercalating agent capable of decomposing while generating gases.Type: ApplicationFiled: May 22, 2008Publication date: January 13, 2011Applicant: COMISSARIAT A L'ENERGIE ATOMIQUEInventors: Philippe Caplain, Herve Fuzllier, Damien Hudry, Laurence Reinert, Jean-Francois Juliaa, Michel Lefrancois
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Patent number: 7821818Abstract: The magnetic device comprises a magnetic device comprising a magnetoresistive tunnel junction (100), itself comprising: a reference magnetic layer (120) having magnetization in a direction that is fixed; a storage magnetic layer (110) having magnetization in a direction that is variable; and an intermediate layer (130) acting as a tunnel barrier that is essentially semiconductor or electrically insulating and that separates the reference magnetic layer (120) from the storage magnetic layer (110). The potential profile of the intermediate layer (130) is asymmetrical across the thickness of said layer (130) so as to produce a current response that is asymmetrical as a function of the applied voltage. The device is applicable to magnetic random access memories.Type: GrantFiled: October 13, 2006Date of Patent: October 26, 2010Assignees: Comissariat a l'Energie Atomique et aux Energies Alternatives, Centre National de la Recherche Scientifique (CNRS)Inventors: Bernard Dieny, Anatoly Vedyaev, Jérôme Faure-Vincent, Patrick Warin, Matthieu Jamet, Yves Samson
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Publication number: 20100141612Abstract: An electrode of a light-emitting device of the OLED type adapted for forming with a second electrode, an optical cavity, including at least one layer based on a material of refraction index n1 including a structured face comprising a plurality of recesses filled with a material of refractive index n2 different from n1.Type: ApplicationFiled: November 20, 2007Publication date: June 10, 2010Applicant: COMISSARIAT A L'ENERGIE ATOMIQUEInventors: Yohan Desieres, Pierre Gidon, Ludovic Poupinet, Bruno Mourey
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Publication number: 20100123222Abstract: A process for fabricating a charge storage layer comprising metal particles of a memory cell, said layer consisting of an organic layer comprising, on the surface, said metal particles, said process comprising the following steps: (a) a step of grafting, onto a metallic, semiconductor or electrically insulating substrate, an organic layer comprising, on the surface, groups capable of complexing at least one metallic element in cationic form; (b) a step of bringing said layer into contact with a solution comprising said metallic element in cationic form, by means of which said metallic element is complexed by said abovementioned groups; and (c) a step of reducing said complexed metallic element to the metallic element in oxidation state 0, by means of which metal particles are obtained.Type: ApplicationFiled: November 13, 2009Publication date: May 20, 2010Applicant: COMISSARIAT A L'ENERGIE ATOMIQUEInventors: Valentina Ivanova-Hristova, Barbara De Salvo
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Publication number: 20090311834Abstract: Method for making a transistor with self-aligned gate and ground plane, comprising the steps of: a) forming a stack, on one face of a semi-conductor substrate, comprising an organometallic layer and a dielectric layer, b) exposing a part of the organometallic layer, a portion of the organometallic layer different to the exposed part being protected from the electron beams by a mask, the shape and the dimensions of a section, in a plane parallel to the face of the substrate, of the gate of the transistor being substantially equal to the shape and to the dimensions of a section of said organometallic portion in said plane, c) removing the exposed part, d) forming dielectric portions in empty spaces formed by the removal of said exposed part of the organometallic layer, around said organometallic portion.Type: ApplicationFiled: June 11, 2009Publication date: December 17, 2009Applicant: COMISSARIAT A L'ENERGIE ATOMIQUEInventors: Claire FENOUILLET-BERANGER, Philippe CORONEL
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Publication number: 20090127460Abstract: A high time-resolution ultrasensitive optical detector, using a planar waveguide leakage mode, and methods for making the detector. The detector includes a stacking with a dielectric substrate, a detection element, first and second dielectric layers, and a dielectric superstrate configured to send photon(s) into the light guide formed by the first layer. The thicknesses of the layers is chosen to enable a resonant coupling between the photon(s) and a leakage mode of the guide, the stacking having an absorption resonance linked to the leakage mode for a given polarization of the photon(s).Type: ApplicationFiled: September 25, 2006Publication date: May 21, 2009Applicant: Comissariat A L'energie AtomiqueInventor: Laurent FREY