Patents Assigned to Universite de Rennes 1
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Patent number: 11414516Abstract: 1) Hydrocarbon-based copolymer comprising two end groups preceded by an ester function and chosen from a 2-oxo-1,3-dioxolan-4-yl (or cyclocarbonate), a dithiocyclocarbonate, an exo-vinylene cyclocarbonate and a 2-oxo-1,3-dioxolen-4-yl, the main chain of which comprises units (I) and (II) in which R0 is notably a methyl radical; and the number-average molecular mass Mn of which is between 400 and 100 000 g/mol. 2) Process for preparing said copolymer, comprising: (i) a step of heating a statistical bipolymer A chosen from a poly(butadiene-isoprene), a poly(butadiene-myrcene) and a poly(butadiene-farnesene); and then (ii) a step of heating the product formed, in the presence of a chain-transfer agent. 3) Use as adhesive, as a mixture with an amine compound comprising at least two amine groups.Type: GrantFiled: September 27, 2018Date of Patent: August 16, 2022Assignees: BOSTIK SA, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE RENNES 1Inventors: Guillaume Michaud, Stephane Fouquay, Frederic Simon, Sophie Guillaume, Jean-Francois Carpentier, Cyril Chauveau
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Patent number: 11355087Abstract: A method for displaying graphical content in a playback device (DISP), the graphical content being displayed and erased periodically on the display device according to successive cycles that take place at a predetermined frequency (Fd) and in that the successive display periods each have a duration (T1) comprised in an interval of values ranging from 15 to 30% of the duration (T) of the cycles that have taken place.Type: GrantFiled: August 3, 2018Date of Patent: June 7, 2022Assignees: Université de Rennes 1Inventors: Albert Le Floch, Guy Ropars
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Patent number: 11345184Abstract: A solvent transfer printing method for applying a pattern made of a non-soluble material and non-dispersible on the surface of an object. The method includes the steps of: m1/forming a pattern on a surface of a solvent-soluble substrate, m2/depositing the solvent-soluble substrate on the surface of a solvent bath, on the side of the substrate opposed to the side on which the pattern is applied, in order to dissolve partially the substrate, m3/dipping the object in the bath, so that the surface of the object comes into contact with the pattern, m4/getting the object, on which the pattern is applied, out of the bath, and b 5/drying the object.Type: GrantFiled: January 26, 2018Date of Patent: May 31, 2022Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS, UNIVERSITE DE RENNES 1Inventors: Maxime Harnois, Jacques Emmanuel, Brice Le Borgne
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Publication number: 20220153786Abstract: The present invention relates to the use of a peptide to prevent biofilm formation by microorganisms on a surface, wherein said peptide is (i) a peptide consisting of 6 to 37 consecutive amino acids from a peptide of sequence SEQ ID NO: 1, (ii) a peptide of sequence SEQ ID NO: 4, or (iii) a peptidomimetic of (i) or (ii).Type: ApplicationFiled: February 20, 2020Publication date: May 19, 2022Applicants: UNIVERSITE DE RENNES 1, Centre national de la recherche scientifique, UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL UFRGSInventors: Rafael GOMES VON BOROWSKI, Aline RIGON ZIMMER, Simone Cristina BAGGIO GNOATTO, Alexandre José MACEDO, Muriel PRIMON DE BARROS, Karine RIGON ZIMMER, Reynald GILLET, Grace GOSMANN
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Patent number: 11331494Abstract: A local stimulation method of a predetermined region of brain tissue, the brain tissue including at least GABAergic neuron type. The method includes at least one activation step of a set of bipolar electrodes, according to a predetermined electric intensity and a predetermined biphasic pulse frequency, delivering a predetermined electric field. The predetermined electric field induces an activation of the GABAergic type neurons and a virtual absence of activation of other types of neurons.Type: GrantFiled: March 31, 2017Date of Patent: May 17, 2022Assignees: UNIVERSITE DE RENNES 1, INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALEInventors: Pascal Benquet, Fabrice Wendling, Julien Modolo
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Patent number: 11279786Abstract: 1) Hydrocarbon-based copolymer comprising two end groups preceded by an ether function and chosen from a 2-oxo-1,3-dioxolan-4-yl (or cyclocarbonate), a dithiocyclocarbonate, and a 2-oxo-1,3-dioxolen-4-yl, the main chain of which comprises units (I) and (II) in which R0 is notably a methyl radical; and the number-average molecular mass Mn of which is between 400 and 100 000 g/mol. 2) Process for preparing said copolymer, comprising: (i) a step of heating a statistical bipolymer A chosen from a poly(butadiene-isoprene), a poly(butadiene-myrcene) and a poly(butadiene-farnesene); and then (ii) a step of heating the product formed, in the presence of a chain-transfer agent. 3) Use as adhesive, as a mixture with an amine compound comprising at least two amine groups.Type: GrantFiled: September 27, 2018Date of Patent: March 22, 2022Assignees: BOSTIK SA, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE RENNES 1Inventors: Guillaume Michaud, Stephane Fouquay, Frederic Simon, Sophie Guillaume, Jean-Francois Carpentier, Cyril Chauveau
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Publication number: 20220085500Abstract: The invention relates to an antenna comprising a radiative antenna element able to emit a signal in at least two disjoint frequency bands and a waveguide covered by the radiative antenna element, comprising two nested resonant cavities, each single-mode or mostly single-mode in a separate frequency band.Type: ApplicationFiled: September 3, 2021Publication date: March 17, 2022Applicants: ARIANEGROUP SAS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE RENNES 1Inventors: Nicolas ATTAJA, Mauro ETTORRE, Ronan SAULEAU, Davy GUIHARD
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Patent number: 11258166Abstract: Disclosed is a radio antenna comprising a substrate of dielectric material; a ground plane of electrically conductive material on a first face of the substrate; a resonator for converting an incident electrical signal into an electromagnetic wave and for resonating at at least two different resonant frequencies. The resonator comprises at least three elements, each in the form of strips of conductive material and arranged on a second face of the substrate opposite the first face. A second element is electrically connected to the ground plane by means of a via passing through the substrate at a first end of the corresponding strip, forms an extension of the first element, and is electrically connected directly to the first element at a second end of said strip which is opposite the first end.Type: GrantFiled: October 4, 2018Date of Patent: February 22, 2022Assignees: BODYCAP, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE RENNES 1Inventors: Denys Nikolayev, Maxim Zhadobov, Ronan Sauleau
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Patent number: 11217896Abstract: A circularly polarized radiating element includes at least one excitation aperture for a wave that is linearly polarized with what is referred to as an excitation first polarization, a frequency selective surface and a metasurface comprising a two-dimensional and periodic array of metasurface cells, the excitation aperture opening onto the metasurface, the metasurface cells all being oriented identically with respect to the excitation polarization and configured to: reflect an incident wave having the excitation polarization in order to form a reflected wave polarized with the excitation polarization, and depolarize and reflect the incident wave in order to form a reflected wave polarized with the orthogonal polarization, having a phase difference substantially equal to ±90° with respect to the reflected wave polarized with the excitation polarization, and having an amplitude substantially equal to the amplitude of a wave radiated by the frequency selective surface, generated from the reflected wave polarizedType: GrantFiled: March 27, 2019Date of Patent: January 4, 2022Assignees: THALES, INSTITUT NATIONAL DES SCIENCES APPLIQUES, UNIVERSITE DE RENNES 1, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Hervé Legay, Antoine Calleau, Maria Garcia Vigueras, Mauro Ettorre
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Patent number: 11171250Abstract: A shielding element comprises a rigid substrate and at least one electrically conductive two-dimensional structure which is placed on one of the faces of the substrate. The substrate and the electrically conductive two-dimensional structure are such that the shielding element has optical-transmission and shielding-efficiency values at least one of which varies between two zones of the shielding element. Such a shielding element enables easier assembly of a detection system comprising multiple optical sensors.Type: GrantFiled: May 22, 2017Date of Patent: November 9, 2021Assignees: Safran Electronics & Defense, Centre National de la Recherche Scientifique-CNRS, Universite de Rennes 1Inventors: Cyril Dupeyrat, Patrice Foutrel, Philippe Besnier, Xavier Castel, Yonathan Corredores
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Publication number: 20210340331Abstract: A process for preparing a polyaminoborane comprising reacting at least one monomer with an aminoborane, wherein the at least one monomer is selected from the group consisting of ammonia, a primary amine and a substituted or unsubstituted hydrazine; and wherein the aminoborane comprises a borane substituted by a secondary amino group; polyaminoboranes obtainable by said process; use of said polyaminoboranes for the preparation of a ceramic precursor or a ceramic, the production of boron nitride, or the storage and/or production of dihydrogen; ceramic precursors, ceramics, hydrogen cells or energy materials comprising said polyaminoboranes.Type: ApplicationFiled: July 13, 2021Publication date: November 4, 2021Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS, Université de Rennes 1Inventors: Gilles Alcaraz, Carlos Antonio De Albuquerque, Claire Roiland
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Patent number: 11134550Abstract: The invention relates to a device (LIGHT) for lighting a graphic and/or textual content present on any medium and in particular on a paper medium. The lighting device (LIGHT) is configured to periodically activate and deactivate said lighting beam in successive cycles carried out at a preset frequency Fd. Each cycle has a duration T and comprises a period of activation of the light beam of duration T1 followed by a period of deactivation of the light beam of duration T2 or vice versa. The frequency Fd is comprised in an interval of values ranging from 60 to 90 Hz and the duration T1 of the periods of activation of the light beam is comprised in an interval of values ranging from 15 to 30% of the duration T of the cycles.Type: GrantFiled: August 3, 2018Date of Patent: September 28, 2021Assignees: Université de Rennes 1Inventors: Albert Le Floch, Guy Ropars
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Patent number: 11124617Abstract: This invention relates to the direct grafting of a calixarene mostly onto the surface of a material, as well as to a grafting process, and certain calixarene intermediates useful for carrying the grafting process.Type: GrantFiled: April 4, 2019Date of Patent: September 21, 2021Assignees: UNIVERSITE LIBRE DE BRUXELLES (ULB), CENTER NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), UNIVERSITE DE RENNES 1, UNIVERSITE DE PARISInventors: Ivan Jabin, Alice Mattiuzzi, Corinne Lagrost, Philippe Hapiot, Olivia Reinaud
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Patent number: 11123561Abstract: A treatment system for stimulating the vagus nerves is described, comprising the following elements: —a detection and control unit (20); —at least one detection probe (10d, 10g) connected to the detection and control unit and intended to be applied to at least one of the two vagus nerves of a patient; —means (24) provided in the detection and control unit for detecting a phenomenon of mass discharge of action potentials in at least one vagus nerve using the detection probe or detection probes; —stimulation probes (10d, 10g) for stimulating vagus nerves, and—means (24) provided in the detection and control unit that are capable, in response to the detection of a mass discharge, of applying predefined asymmetric stimulation signals to said stimulation probes capable of causing a depolarization and/or hyperpolarization of the vagus nerves and of blocking the conduction of the action potentials at least in the efferent direction.Type: GrantFiled: February 13, 2017Date of Patent: September 21, 2021Assignees: UNIVERSITE DE RENNES 1, INSERM (INSTITUT NATIONAL DE LA SANTE ET DE LA REC, CNRS (CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, CHU DE RENNES (CENTRE HOSPITALIER UNIVERSITAIRE DEInventors: Alfredo Hernandez, Benoit Martin, Arnaud Biraben
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Patent number: 11114761Abstract: The invention concerns an antenna, comprising at least two non-ferrous metal plates, at least one first plate forming a radiating portion and a second plate forming a mass plane, at least one substrate, arranged between the mass plane and the radiating portion, and an excitor of length at least equal to the thickness of the substrate, extending between the mass plane and the radiating portion and connected to the radiating portion, and adapted to supply the antenna, characterised in that the substrate is a dispersive ferromagnetic substrate, called dispersive ferrite presenting, as magnetic features, a high relative magnetic permeability comprised between 10 and 10,000 and a high magnetic loss tangent greater than 0.1, said antenna comprising means for gradually and locally reducing magnetic features of the dispersive ferrite.Type: GrantFiled: October 4, 2018Date of Patent: September 7, 2021Assignees: TDF, UNIVERSITE DE RENNES 1Inventors: Evgueni Kaverine, Sébastien Palud, Franck Colombel, Mohamed Himdi
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Patent number: 11091593Abstract: A process for preparing a polyaminoborane comprising reacting at least one monomer with an aminoborane, wherein the at least one monomer is selected from the group consisting of ammonia, a primary amine and a substituted or unsubstituted hydrazine; and wherein the aminoborane comprises a borane substituted by a secondary amino group; polyaminoboranes obtainable by said process; use of said polyaminoboranes for the preparation of a ceramic precursor or a ceramic, the production of boron nitride, or the storage and/or production of dihydrogen; ceramic precursors, ceramics, hydrogen cells or energy materials comprising said polyaminoboranes.Type: GrantFiled: January 30, 2018Date of Patent: August 17, 2021Assignees: Centre National de la Recherche Scientifique, Université de Rennes 1Inventors: Gilles Alcaraz, Carlos Antonio De Albuquerque Pinheiro, Claire Roiland
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Patent number: 11081802Abstract: One subject of the present invention is an electromagnetic-wave-absorbing composite material comprising a carrier matrix (11) and an electromagnetic-wave-absorbing filler (12). According to the invention, the carrier matrix (11) is a cork matrix, which is formed of particles the equivalent diameter Del of which is comprised between 10 ?m and 5 mm, and the composite material (1) has a real permittivity higher than 1.2 and a dielectric loss tangent tan ? higher than 0.1. Another subject of the present invention is a method for producing such a material, and the use of this material as an absorber, in particular in an anechoic chamber, or as a radar absorber in stealth devices, or even to improve the electromagnetic compatibility of electronic devices.Type: GrantFiled: March 20, 2017Date of Patent: August 3, 2021Assignee: UNIVERSITE DE RENNES 1Inventors: Chloé Mejean, Ratiba Benzerga, Ala Sharaiha
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Patent number: 11060920Abstract: An optically transparent electromagnetic shield assembly comprising an electrical connection device with variable electrical resistance. The electrical connection device electrically connects a conductive two-dimensional structure, which covers a transparent substrate, to a shell portion which is electrically conductive. The resistance of the connection device can be adjusted, either initially for a detection system for which the shield assembly is intended or in real time while the shield assembly is in use, according to an RF radiation intensity.Type: GrantFiled: May 15, 2018Date of Patent: July 13, 2021Assignees: SAFRAN ELECTRONICS & DEFENSE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS, UNIVERSITE DE RENNES 1Inventors: Cyril Dupeyrat, Patrice Foutrel, Philippe Besnier, Xavier Castel, Yonathan Corredores
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Publication number: 20210189346Abstract: A method of culturing animal cells, preferably primary hepatocytes, including a first step of culturing the animal cells in non-adherent culture vessel, preferably a low or ultra-low attachment culture vessel, a second step of embedding the animal cells in a collagen matrix or in a gelatin matrix, and a third step of culturing the animal cells embedded in the collagen matrix or in the gelatin matrix, thereby obtaining 3D animal cell structures including proliferative animal cells, preferably spheroids including proliferative primary hepatocytes. Also, a spheroid including proliferative primary hepatocytes and the uses thereof for engineering an artificial liver model or an artificial liver organ, and for assessing in vitro the liver toxicity, genotoxicity and/or the effects of a drug or a compound.Type: ApplicationFiled: May 16, 2019Publication date: June 24, 2021Applicants: INSERM (INSTITUT NATIONAL DE LA SANTÉ ET DE LA RECHERCHE MÉDICALE), UNIVERSITÉ DE RENNES 1, ÉCOLE DES HAUTES ÉTUDES EN SANTÉ PUBLIQUE (EHESP)Inventors: Georges BAFFET, Sophie LANGOUET, Frédéric EZAN, Sophie ROSE, Marie CUVELLIER
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Publication number: 20210163671Abstract: Method for preparing a compound having an alkoxysilyl group of formula (I), wherein X represents —O— or —NR4— with R4?H or C1-C4alkyl; R1 is a radical having from 1 to 20 carbon atoms; R2 and R3 are a C1-C4 alkyl radical; p is an integer equal to 0, 1 or 2; comprising a cross metathesis reaction in the presence (i) of a compound having a group of acrylate type and of formula: —X(C?O)—CH?CH2, (ii) of an ?-olefinic silane of formula (II): and (iii) of a metathesis catalyst chosen from GRUBBS catalysts and 2nd generation HOVEYDA-GRUBBS (HG2) catalysts. 2) Compound having said alkoxysilyl group, obtained by the method 1).Type: ApplicationFiled: July 19, 2019Publication date: June 3, 2021Applicants: BOSTIK SA, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE RENNES 1Inventors: Frederic SIMON, Stephane FOUQUAY, Guillaume MICHAUD, Cyril CHAUVEAU, Jean-Francois CARPENTIER, Sophie GUILLAUME