Patents Assigned to Universite de Limoges
-
Patent number: 9203203Abstract: A device for the excitation of a gas medium (10) contained in a casing (12), the device being coupled to the casing (12) and disposed outside same and including an applicator that can generate lateral excitation inside the casing (12) over at least a portion thereof. The device is characterized in that the casing (12) is a hollow-core photonic dielectric structure (16), in which the core has a diameter smaller than 300 ?m, and in that the applicator is of the microwave type and can be used to generate a surface wave that can create and confine a microplasma from the gaseous medium contained in the casing (12).Type: GrantFiled: April 26, 2012Date of Patent: December 1, 2015Assignee: UNIVERSITE DE LIMOGESInventors: Fetah Benabid, Jean-Marc Blondy, Benoit Debord, Frederic Gerome, Raphael Jamier, Philippe Leprince
-
Patent number: 8940236Abstract: A device for inspecting a biological fluid, including a channel through which the fluid flows, a first inspection module arranged in a first region of the channel, and a second inspection module arranged in a second region of the channel, the device configured to provide a quantity that is representative of output of the second inspection module. The first inspection module is configured to measure at least one electrical property of the fluid passing through the first region. The second inspection module is configured to measure at least one optical property of the fluid passing through the second region. The inspection device also includes a controller connected to the first inspection module and to the second inspection module and configured to control the second inspection module according to the output of the first inspection module.Type: GrantFiled: January 2, 2012Date of Patent: January 27, 2015Assignees: Horiba ABX SAS, Universite de Limoges, Centre National de la Recherche Scientifique CNRSInventors: Nelly Rongeat, Philippe Nerin, Patrick Brunel
-
Patent number: 8941452Abstract: The present invention relates to an microelectromechanical system (1) comprising: a base (15) comprising a substrate (20) and a substrate electrode (40); a moveable beam (30); a voltage generator (10) able to generate a potential difference between the beam (30) and the substrate electrode (40); and at least one mechanical stop (70) connected to the beam and designed to make contact with the base (15) when a potential difference is applied between the beam (30) and the substrate electrode (40), thereby defining an air-filled cavity (80) between the beam (30) and the substrate electrode (40), characterized in that it furthermore comprises an electrical-charge blocking element (50) placed on the substrate (20), said element facing the at least one mechanical stop (70) and being electrically connected to the beam (30).Type: GrantFiled: August 11, 2011Date of Patent: January 27, 2015Assignees: Universite de Limoges, Centre National de la Recherche Scientifique (CNRS)Inventors: Pierre Blondy, Stanis Courreges, Arnaud Pothier, Jean-Christophe Orlianges
-
Publication number: 20150015449Abstract: A basic antenna (2), designed to form a radiating element of an array antenna, includes, superimposed, a planar reflector (4), a probe (6), and an assembly (8) of the EBG type by default in the form of a cavity (16). The basic antenna (2) includes a wall enclosure (10) capable of reflecting the electromagnetic waves at the operating frequency or frequencies of the basic antenna (2), the wall enclosure (10) being an extension in a direction orthogonal to the planar reflector (4) and simultaneously surrounding only the probe (6), the cavity (16) and the structure (14). The one- or two-dimensional array antenna includes a plurality of joined basic antennas (2) arranged compactly.Type: ApplicationFiled: December 20, 2012Publication date: January 15, 2015Applicants: UNIVERSITE DE LIMOGES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)Inventors: Bernard Jecko, Mohammad Hajj, Régis Chantalat, Moustapha Salah Toubet
-
Patent number: 8908262Abstract: According to the invention, the optical signal (SE) is spatially divided into N elementary optical signals (SE.1, SE.2, . . . , SE.N), the spectral ranges thereof being adjacent in pairs and forming, substantially by juxtaposition, the spectral range of the optical signal; these N elementary signals are amplified respectively by means of N elementary amplifiers (4.1, 4.2, . . . , 4.N), the spectral ranges thereof respectively comprising the spectral ranges of said N elementary signals; the N amplified elementary signals (Ss.1, Ss.2, . . . , Ss.N) are assembled to form an amplified optical signal (Ss), the spectral range thereof substantially coinciding with a predetermined spectral range, and finally the spectral phases of the N initial elementary signals (Ss.1, Ss.2, . . . , Ss.N) are adjusted before amplification on the basis of the spectral phase of said amplified signal (Ss).Type: GrantFiled: September 5, 2011Date of Patent: December 9, 2014Assignees: Universite de Limoges, Centre National de la Recherche ScientifiqueInventors: Vincent Kermene, Agnès Desfarges-Berthelemot, Alain Barthelemy
-
Publication number: 20140193127Abstract: According to the invention, the intermediate sheath (13) is formed by assembling longitudinal elements (13A) and includes: a first optical material, the refractive index of which differs from the refractive index of the monomode core by at most 10?3; and a second optical material, the refractive index of which is lower than the refractive index of said monomode core and differs therefrom by at least 10?3.Type: ApplicationFiled: April 24, 2012Publication date: July 10, 2014Applicants: UNIVERSITE DE LIMOGES, CNRS-CENTRE NATIONAL DE RECHERCHE SCIENTIFIQUEInventors: Philippe Roy, Kay Schuster, Stephan Grimm
-
Publication number: 20140130482Abstract: Device for the purification of exhaust gases from a thermal combustion engine comprising: one or several ceramic catalyst carriers comprising an arrangement of crystallites of the same size, same isodiametric morphology and same chemical composition, or approximately the same size, same isodiametric morphology and same chemical composition in which each crystallite is in point or quasi-point contact with the surrounding crystallites, and one or several active phases for chemical destruction of impurities in the exhaust gas comprising metallic particles mechanically anchored in said catalyst carrier such that coalescence and mobility of each particle are limited to a maximum volume corresponding to the volume of a crystallite of said ceramic catalyst carrier.Type: ApplicationFiled: June 8, 2012Publication date: May 15, 2014Applicants: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude, Centre National De La Recherche Scientifique, Universite De LimogesInventors: Pascal Del-Gallo, Fabrice Rossignol, Thierry Chartier, Raphael Faure, Sebastien Goudalle, Claire Bonhomme
-
Publication number: 20140127099Abstract: Device for purifying exhaust gases from a thermal combustion engine, comprising a catalytic ceramic carrier comprising an arrangement of crystallites of the same size, same isodiametric morphology and same chemical composition or substantially the same size, same isodiametric morphology and same chemical composition, wherein each crystallite is in contact at a singular or almost singular point with surrounding crystallites, and whereon at least one active phase is deposited for the chemical destruction of impurities in the exhaust gas.Type: ApplicationFiled: June 8, 2012Publication date: May 8, 2014Applicants: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude, Centre National De La Recherche Scientifique, Universite De LimogesInventors: Pascal Del-Gallo, Fabrice Rossingnol, Thierry Chartier, Raphael Faure, Sebastien Goudalle, Claire Bonhomme
-
Patent number: 8716904Abstract: The present disclosure relates to a high-voltage pulse generator including a “frozen-wave” generation system for generating high-voltage pulses and a trigger system for triggering the pulses, the generation system including a first and a second photoconductor element, wherein the triggering system includes means for generating a laser light beam and means for splitting the laser beam into two laser beam fractions, each laser beam fraction being directed onto a photoconductor element of the generation system, the splitting means being capable of controlling the distribution of the respective powers of the two laser beam fractions as a function of the orientation of the polarization of the laser beam. The present disclosure also relates to a facility comprising multiple high-voltage pulse generators and electrooptic pump-probe equipment operating such a high-voltage pulse generator.Type: GrantFiled: April 10, 2009Date of Patent: May 6, 2014Assignees: Universite de Limoges, Centre National de la Recherche Scientifique-CNRS, Institut Franco-Allemand de Recherches de Saint-LouisInventors: Vincent Couderc, Bertrand Vergne, Philippe Leveque
-
Publication number: 20140120014Abstract: Device for the purification of exhaust gases from a thermal combustion engine comprising: one or several ceramic catalyst carriers comprising an arrangement of crystallites of the same size, same isodiametric morphology and same chemical composition, or approximately the same size, same isodiametric morphology and same chemical composition in which each crystallite is in point or quasi-point contact with the surrounding crystallites, and one or several active phases for chemical destruction of impurities in the exhaust gas comprising metallic particles having chemical interactions with said ceramic catalyst carrier and mechanical anchoring in said catalyst carrier such that coalescence and mobility of each particle are limited to a maximum volume corresponding to the volume of a crystallite of said ceramic catalyst carrier.Type: ApplicationFiled: June 8, 2012Publication date: May 1, 2014Applicants: L'Air Liquide Societe Anonyme pour L'Etude Et L'Exploitation Des Procedes Georges Claude, Centre National De La Recherche Scientifique, Universite De LimogesInventors: Pascal Del-Gallo, Fabrice Rossignol, Thierry Chartier, Raphael Faure, Sebastien Goudalle, Claire Bonhamme
-
Publication number: 20140048410Abstract: A device for the excitation of a gas medium (10) contained in a casing (12), the device being coupled to the casing (12) and disposed outside same and including an applicator that can generate lateral excitation inside the casing (12) over at least a portion thereof. The device is characterized in that the casing (12) is a hollow-core photonic dielectric structure (16), in which the core has a diameter smaller than 300 ?m, and in that the applicator is of the microwave type and can be used to generate a surface wave that can create and confine a micro-plasma from the gaseous medium contained in the casing (12).Type: ApplicationFiled: April 26, 2012Publication date: February 20, 2014Applicant: UNIVERSITE DE LIMOGESInventors: Fetah Benabid, Jean-Marc Blondy, Benoit Debord, Frederic Gerome, Raphael Jamier, Philippe Leprince
-
Patent number: 8629317Abstract: The invention relates to a non-human transgenic mammal with an IgH locus modified by replacement of the switching sequence S? with all or part of a transgene comprising the gene C? of a class A human immunoglobulin, including at least the exon, coding for the CH3 domain and the membrane exon and the applications of the above for the production of humanized class IgA antibodies.Type: GrantFiled: October 21, 2004Date of Patent: January 14, 2014Assignees: Centre National de la Recherche Scientifique, Universite de LimogesInventors: Michel Cogne, Christophe Sirac, Micael Bardel, Catherine Decourt, Caroline Le Morvan
-
Publication number: 20130316440Abstract: A device for inspecting a biological fluid, including a channel through which the fluid flows, a first inspection module arranged in a first region of the channel, and a second inspection module arranged in a second region of the channel, the device configured to provide a quantity that is representative of output of the second inspection module. The first inspection module is configured to measure at least one electrical property of the fluid passing through the first region. The second inspection module is configured to measure at least one optical property of the fluid passing through the second region. The inspection device also includes a controller connected to the first inspection module and to the second inspection module and configured to control the second inspection module according to the output of the first inspection module.Type: ApplicationFiled: January 2, 2012Publication date: November 28, 2013Applicants: HORIA ABX SA, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS, UNIVERSITE DE LIMOGESInventors: Nelly Rongeat, Philippe Nerin, Patrick Brunel
-
Publication number: 20130284980Abstract: Catalyst comprising: a) a catalytic ceramic support comprising an arrangement of crystallites of the same size, same isodiametric morphology and same chemical composition or substantially of the same size, same isodiametric morphology and same chemical composition in which each crystallite is in point contact or virtually point contact with crystallites that surround it, and b) at least one active phase comprising metallic particles mechanically anchored into said catalytic support so that the coalescence and the mobility of each particle are limited to a volume corresponding to that of a crystallite of said catalytic ceramic support.Type: ApplicationFiled: December 14, 2011Publication date: October 31, 2013Applicants: Universite De Limoges, L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventors: Pascal Del-Gallo, Fabrice Rossignol, Thierry Chartier, Raphael Faure, Claire Bonhomme, Sébastien Goudalle
-
Publication number: 20130264520Abstract: The invention relates to a catalyst comprising: a) a catalyst support made of a ceramic, the support comprising an arrangement of crystallites having the same size, the same isodiametric morphology and the same chemical composition or substantially the same size, the same isodiametric morphology and the same chemical composition, in which each crystallite makes point contact or almost point contact with the surrounding crystallites; and b) at least one active phase comprising metallic particles that interact chemically with said catalyst support made of a ceramic and that are mechanically anchored to said catalyst support in such a way that the coalescence and mobility of each particle are limited to a maximum volume corresponding to that of a crystallite of said catalyst support.Type: ApplicationFiled: December 14, 2011Publication date: October 10, 2013Applicants: L'Air Liquide Societe Anonyme Pour L'Etide Et L'Exploitation Des Procedes Georges Claude, Centre National De La Recherche Scientifique- France, Universite De LimogesInventors: Pascal Del-Gallo, Fabrice Rossignol, Thierry Chartier, Raphael Faure, Claire Bonhomme, Sebastien Goudalle
-
Publication number: 20130188244Abstract: According to the invention, the optical signal (SE) is spatially divided into N elementary optical signals (SE.1, SE.2, . . . , SE.N), the spectral ranges thereof being adjacent in pairs and forming, substantially by juxtaposition, the spectral range of the optical signal; these N elementary signals are amplified respectively by means of N elementary amplifiers (4.1, 4.2, . . . , 4.N), the spectral ranges thereof respectively comprising the spectral ranges of said N elementary signals; the N amplified elementary signals (Ss.1, Ss.2, . . . , Ss.N) are assembled to form an amplified optical signal (Ss), the spectral range thereof substantially coinciding with a predetermined spectral range, and finally the spectral phases of the N initial elementary signals (Ss.1, Ss.2, . . . , Ss.N) are adjusted before amplification on the basis of the spectral phase of said amplified signal (Ss).Type: ApplicationFiled: September 5, 2011Publication date: July 25, 2013Applicants: UNIVERSITE DE LIMOGES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Vincent Kermene, Agnès Desfarges-Berthelemot, Alain Barthelemy
-
Publication number: 20130101745Abstract: A method for making a multilayer coating on a surface of a substrate by means of at least one thermal spraying method, wherein the following successive steps are carried out: a) a first nanostructured or finely structured layer (21) of a first material is deposited on the surface of the substrate (20) by means of a thermal spraying method via a liquid route; the surface of the substrate (20) not having been subject, prior to the deposition of the first nanostructured or finely structured layer (21), to any preparation or activation treatment other than an optional cleaning treatment; b) a second microstructured layer (22) of a second material is deposited on the first nanostructured or finely structured layer (21) by means of a thermal spraying method. The first layer obtained in step a) is an adhesion layer aiming at optimizing the adhesion of the layer obtained in step b) without any surface preparation or activation.Type: ApplicationFiled: April 21, 2011Publication date: April 25, 2013Applicant: UNIVERSITE DE LIMOGESInventors: Erick Meillot, Romain Vert, JoëL Toulc'hoat, Gilles Mariaux, Armelle Vardelle
-
Publication number: 20130058366Abstract: A supercontinuum source capable of emitting waves between the infrared range and the ultraviolet range, includes a pulsed laser source (12) capable of generating a laser beam and a non-linear microstructured optical fibre (14) capable of receiving the laser beam, in such a way that the supercontinuum source is capable of generating a beam (F?) over a pulse duration (T?), characterized in that the supercontinuum source includes elements for varying the pulse duration.Type: ApplicationFiled: April 8, 2011Publication date: March 7, 2013Applicants: UNIVERSITE DE LIMOGES, MULTITEL, LEUKOSInventors: Philippe Leproux, Vincent Couderc, Yves Hernandez, Anthony Bertrand, Marco Andreana, Stephane Hilaire, Philippe Roy
-
Patent number: 8340142Abstract: The invention relates to a passively triggered microchip laser (1) formed by a cavity closed by an input mirror (4) and an output mirror (5), characterized in that the cavity includes deflection means (9, 10, 11, 12, 13) designed to deflect a light beam (14) between the input mirror (4) and the output mirror (5).Type: GrantFiled: May 14, 2008Date of Patent: December 25, 2012Assignees: Centre National de la Recherche Scientifique - CNRS, Universite de Limoges, Horus LaserInventors: Laurent Lefort, Paul-Henri Pioger, Vincent Couderc
-
Patent number: 8237131Abstract: A system for carrying out fibered multiphoton microscopic imagery of a sample (10) for use in endoscopy or fluorescence microscopy includes: a femtosecond pulsed laser (1, 2) for generating a multiphoton excitation laser radiation; an image guide (8) having a number of optical fibers and permitting the sample to be illuminated by a point-by-point scanning in a subsurface plane; pre-compensating elements (4) for pre-compensating for dispersion effects of the excitation pulses in the image guide (8), these elements being situated between the pulsed laser and the image guide (8); scanning elements for directing, in succession, the excitation laser beam in a fiber of the image guide, and; in particular, an optical head (9) for focussing the excitation laser beam exiting the image guide in the sample (10).Type: GrantFiled: October 21, 2005Date of Patent: August 7, 2012Assignees: Mauna Kea Technologies, Centre National de la Recherche Scientifique, Universite de LimogesInventors: Bertrand Viellerobe, Francois Lacombe, Alexandre Loiseau, Frederic Louradour, Mickael Lelek, Alain Barthelemy, Dominique Pagnoux