Patents Assigned to Commissariat a l'Energie Atomique et Aux Energies Alternatives
  • Patent number: 10717834
    Abstract: Nanofibres are provided that are insoluble and swellable in an essentially aqueous effluent, a method for the preparation of these nanofibres and the use of these nanofibres for the extraction from an effluent of metals, in particular metal salts originating from heavy metals, of rare earths, alkali metals, alkaline earth metals or actinides, in the stable or unstable isotopic forms thereof.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: July 21, 2020
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, AJELIS
    Inventors: Pascal Viel, Marvin Benzaqui, Ekaterine Shilova
  • Publication number: 20200227098
    Abstract: A Memory device comprising a matrix of memory cells, the matrix being provided with at least one first column, the device also being provided with a test circuit configured to perform a test phase during a read operation to indicate whether or not the proportion of cells in said column storing the same logical data, particularly a logical ‘1’, is greater than a predetermined threshold.
    Type: Application
    Filed: January 9, 2020
    Publication date: July 16, 2020
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Jean-Philippe NOEL, Reda Boumchedda, Bastien Giraud
  • Publication number: 20200227271
    Abstract: A method is provided for etching a dielectric layer disposed on at least one layer based on gallium nitride (GaN), the dielectric layer being formed by a material based on one from SixNy and SixOy, the method including: first etching of the dielectric layer on only part of a thickness to define therein a partial opening and a residual portion situated in line with the opening and having another thickness; implanting ions in line with the opening over a thickness greater than the another thickness to modify a material of the dielectric layer over an entire thickness of the residual portion, and modify a material of the base layer of GaN; removing the residual portion by a second etching, selective of the modified dielectric layer with respect to the nonmodified material and with respect to the modified layer based on GaN; and annealing of the layer based on GaN.
    Type: Application
    Filed: December 20, 2019
    Publication date: July 16, 2020
    Applicant: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Nicolas POSSEME, Frederic LE ROUX
  • Publication number: 20200227212
    Abstract: The present invention relates to a method for preparing an electrode comprising a metal substrate, vertically aligned carbon nanotubes and a metal oxide deposited over the entire length of said vertically aligned carbon nanotubes, said method comprising the following consecutive steps: (a) synthesizing, on a metal substrate, a mat of vertically aligned carbon nanotubes; and (b) depositing a metal oxide matrix over the entire height of said vertically aligned carbon nanotube mat via spontaneous reduction at a temperature not exceeding 40° C. The present invention also relates to said electrode and to the uses thereof.
    Type: Application
    Filed: July 6, 2018
    Publication date: July 16, 2020
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Mathieu PINAULT, Fouad GHAMOUSS, Francois TRAN VAN, Emeline CHARON, Baptiste PIBALEAU
  • Publication number: 20200228026
    Abstract: Improved electronic interface device (120) between an electromagnetic energy harvesting stage (110) provided with an inductance and a load stage (130-140), the electronic interface device being provided to allow tending the charge seen by the harvesting stage towards an optimal charge and thus being able to extract a maximum of energy from this energy harvesting stage (110).
    Type: Application
    Filed: January 15, 2020
    Publication date: July 16, 2020
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Antony QUELEN
  • Publication number: 20200227894
    Abstract: A light source comprises a GeSn active zone inserted between two contact zones. The active zone is formed directly on a silicon oxide layer by a first lateral epitaxial growth of a Ge germination layer followed by a second lateral epitaxial growth of a GeSn base layer. A cavity is formed between the contact zones by encapsulation and etching, so as to guide these lateral growths. A vertical growth of GeSn is then achieved from the base layer to form a structural layer. The active zone is formed in the stack of base and structural layers.
    Type: Application
    Filed: November 21, 2019
    Publication date: July 16, 2020
    Applicant: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Vincent REBOUD, Georgio EL ZAMMAR, Rami KHAZAKA, Sylvie MENEZO
  • Publication number: 20200226486
    Abstract: A method is described for controlling a spin qubit quantum device that includes a semiconducting portion, a dielectric layer covered by the semiconducting portion, a front gate partially covering an upper edge of the semiconducting portion, and a back gate. The method includes, during a manipulation of a spin state, the exposure of the device to a magnetic field B of value such that g·?B·B>min(?(Vbg)). The method also includes the application, on the rear gate, of an electrical potential Vbg of value such that ?(Vbg)<g·?B·B+2|MSO|, and the application, on the front gate, of a confinement potential and an RF electrical signal triggering a change of spin state, with g corresponding to the Landé factor, ?B corresponding to a Bohr magneton, ? corresponding to an intervalley energy difference in the semiconducting portion, and MSO corresponding to the intervalley spin-orbit coupling.
    Type: Application
    Filed: June 27, 2018
    Publication date: July 16, 2020
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Leo BOURDET, Louis HUTIN, Yann-Michel NIQUET, Maud VINET
  • Patent number: 10709904
    Abstract: An apparatus for performing nanoparticle-assisted external beam radiotherapy includes an X-ray spectrometer having an optical axis, an X-ray filter, and a mobile holding structure for holding the X-ray filter and X-ray spectrometer in a first and second relative position, and for switching from the first to second relative position while simultaneously positioning a patient body part in a target region including a target point. An X-ray beam emitted from the X-ray source crosses the X-ray filter before reaching the target point. The propagation of the X-ray beam forms an angle different from 0° and 180° with the optical axis of the X-ray spectrometer. The second relative position is obtained by inverting the relative positions of the X-ray filter and X-ray spectrometer relative to the patient body part. A method of determining an X-ray dose delivered at a region of a patient body using the apparatus is provided.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: July 14, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Olivier Limousin, Daniel Maier, Diana Renaud, Romain Grall, Sylvie Chevillard
  • Patent number: 10711201
    Abstract: The invention relates to methods for converting algal biomass into a gas or into biocrude comprising (a) gasification or hydrothermal liquefaction of an algal biomass in at least one first reactor, (b) separation of the gas or biocrude produced thereby from the aqueous effluents and the CO2 produced, at the outlet of the first reactor, (c) recovery of the aqueous effluents, and (d) oxidation of the aqueous effluents in at least one second reactor. Continuous processes for culture of algal biomass and conversion of the algal biomass cultivated into a gas or into a biocrude are also disclosed.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: July 14, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Jonathan Texier, Pierre Castelli, Anne Roubaud
  • Patent number: 10712313
    Abstract: A feedback device for a gas ionisation particle detector that includes a high voltage generator capable of creating a potential difference between electrodes placed in a gas chamber. The feedback device includes a voltage regulator configured to calculate an indicator characteristic of a measurement signal output by an electronic read unit capable of collecting an electrical signal induced by a particle passing through the chamber and to modify a set voltage output to the high voltage generator as a function of the indicator characteristic of the measurement signal. The characteristic indicator may be an average amplitude. The feedback device can use an error signal corresponding to the difference between the calculated characteristic indicator and a predetermined value.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: July 14, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Simon Bouteille, Sebastien Procureur
  • Patent number: 10711999
    Abstract: An injection and cooling system configured to equip a plasma torch, a plasma torch equipped with the system, an installation for treatment of a liquid solution including such a plasma torch, and a method for treatment of a liquid solution by injection into a plasma generated by such a plasma torch submerged in a different liquid solution.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: July 14, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Jean-Marie Baronnet, Florent Lemont, Majdi Mabrouk, Mickael Marchand
  • Patent number: 10715079
    Abstract: The process for manufacturing a photovoltaic concentrator comprising a photovoltaic substrate (2) equipped with a plurality of photovoltaic cells (5), and an optical structure (1) comprising a first optical-lens stage (4) and a second optical-lens stage (3) that are intended to optically interact with each other, includes (i) providing a mould (6); and (ii) simultaneously forming the first optical-lens stage (4) and the second optical-lens stage (3) using said provided mould (6), and implementing a step of filling said mould (6) with a material (100), especially by injecting or pouring said material (100).
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: July 14, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Cesar Dominguez
  • Patent number: 10714601
    Abstract: A vertical channel transistor comprising: a structure made of a given bismuth-based material which passes through a gate block where the structure comprises a channel region which extends through the gate block and source and drain regions on either side of the channel region and of the gate block, where the source and drain regions have a cross-section which is greater than the cross-section of the channel region (FIG. 1K).
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: July 14, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Jean-Pierre Colinge
  • Publication number: 20200220751
    Abstract: The present invention relates to a wavelet bandpass sampling method, with low aliasing and a corresponding device. The analogue signal to sample is correlated with a sequence of wavelets succeeding each other with a rate fp of which the positions in the sequence are temporally modulated from arguments of a CAZAC sequence, notably a Zadoff-Chu sequence. The correlation results are next sampled at a frequency fs?fp and digitally converted to provide a compressed representation of the signal. The temporal modulation of the positions of the wavelets makes it possible to obtain incoherent aliasing of the correlation signal in the sampling band and thereby to reduce aliasing.
    Type: Application
    Filed: November 29, 2019
    Publication date: July 9, 2020
    Applicant: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Michael Pelissier, Marguerite Marnat
  • Publication number: 20200215514
    Abstract: The invention relates to a method for preparing a monolithic stationary phase in the interior volume of a chromatography column made of thermoplastic polymer. This method comprises the following steps: (i) modifying the inner wall of the chromatography column by implementing the following steps: (a) preparing a polymerizable anchoring composition comprising at least one particular methacrylate monomer, one or more solvents and 2,2-dimethoxy-2-phenylacetophenone, (b) depositing, on the inner wall of the column, the polymerizable anchoring composition prepared in step (a), and (c) polymerizing the polymerizable anchoring composition by irradiation with ultraviolet radiation; (ii) introducing, into the interior volume of the column, a polymerizable monolith synthesis composition comprising first and second particular (meth)acrylate monomers, one or more pore-forming agents and a free-radical polymerization initiator; and (iii) polymerizing the polymerizable monolith synthesis composition.
    Type: Application
    Filed: July 5, 2018
    Publication date: July 9, 2020
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Marion LOSNO, Clarisse MARIET
  • Patent number: 10703012
    Abstract: A tool to differentially compress a powder material comprises a differential compression piston and a support. The piston comprises a first part configured to apply a pressure on a first region of an external surface of the powder material. The piston comprises a second part with a recess which is located at a lateral distance from the first part and which is configured to face a second region of the external surface of the powder material. The tool further comprises a membrane that can be deformed by the piston. The deformable membrane is configured to at least partially retain the powder material in the tool.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: July 7, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Mathieu Boidot
  • Patent number: 10705115
    Abstract: A method is provided for positioning a micro- or nano-object on a planar support by displacement performed under visual control, wherein the micro- or nano-object is immersed in a transparent medium, called ambient medium, having a refractive index n3; the planar support comprises a transparent substrate of refractive index n0>n3 on which is deposited at least one optically absorbent layer, adapted to behave as antireflection coating when it is lit at normal incidence with a lighting wavelength ? through the substrate; and the visual control comprises the lighting of the micro- or nano-object at least with the wavelength ? through the substrate, and the observation thereof also through the substrate. A method to scanning probe microscopy and to the assembly of nanostructures is provided.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: July 7, 2020
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), UNIVERSITE DU MANS
    Inventors: Stéphane Campidelli, Renaud Cornut, Vincent Derycke, Dominique Ausserre, Manuel Ausserre
  • Patent number: 10705354
    Abstract: A method of fabricating a modulator of propagation losses and of index of propagation of an optical signal, including: following bonding of a substrate onto an encapsulated semiconductor layer including a first electrode of the modulator and prior to forming a second electrode of the modulator, the method includes: removing a base substrate onto which the encapsulated semiconductor layer is deposited to expose a face of a buried layer of dielectric material, situated under the buried semiconductor layer, without modifying thickness of the buried layer by more than 5 nm; and forming the second electrode is implemented directly on this exposed face of the buried layer such that, once the second electrode has been formed, it is the buried layer which directly forms a dielectric layer interposed between proximal ends of the electrodes of the modulator.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: July 7, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Sylvie Menezo, Olivier Girard
  • Patent number: 10702697
    Abstract: A deep brain stimulation device includes a probe having a transparent distal portion, crossed by a channel open at a proximal end of the probe, and also includes electrodes affixed to the distal portion of the probe and electrode terminals affixed to a proximal portion of the probe. Further, the device includes an electrical housing including a channel open at its two ends and housing electrical terminals in contact with the terminals of the probe, and an electrical extension lead affixed to the housing and connected to the terminals of the housing. The channel of the housing is open at the other one of its ends and the device further includes a waveguide at least partly housed in the central channel of the probe, all the way to the distal portion of the probe, and a transmitter housing capable of being connected to the waveguide for the injection of a predetermined wavelength.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: July 7, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Claude Chabrol, Alim-Louis Benabid
  • Patent number: 10703626
    Abstract: The invention relates to a damping system for a mobile mass (2) of a MEMS device (1), the system being capable of preventing direct contact between the mass (2) and a surface element (3) of the MEMS device (1), the damping system comprising: a mechanical bumper (4) positioned between the mass (2) and the surface element (3); a system (5) for locking/unlocking the bumper (4), which comprises one branch (51) oriented towards the bumper (4) having a blocking end (53) and a pin joint (54) capable of pivoting the branch (51), the locking/unlocking system (5) defining two subsequent positions of the mass (2).
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: July 7, 2020
    Assignees: SAFRAN, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Guillaume Jerome Francois Lehee