Patents Assigned to Ecole Normale Superieure
  • Publication number: 20090131320
    Abstract: The invention relates to peptides which can become fixed to the engrailed transcription factor and which can modulate the activity thereof.
    Type: Application
    Filed: September 8, 2008
    Publication date: May 21, 2009
    Applicants: Centre National De La Recherche Scient., Ecole Normale Superieure, Universite Paris 13 NORD
    Inventors: Alain PROCHIANTZ, Brigitte Lesaffre, Michel Volovitch, Laure Sonnier
  • Patent number: 7460963
    Abstract: Device for health monitoring of a structure comprising a dielectric material of permittivity ?r, comprising a source of electromagnetic radiation, generating an electric field in the structure a detector measuring a component of the electric field, calculation means giving the value of ?r on the basis of the said component.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: December 2, 2008
    Assignees: Centre National de la Recherche Scientifique (CNRS), Office National d'etudes et de Recherches Aerospatiales (ONERA), Ecole Normale Superieure de Cachan
    Inventors: Michel Bernard Lemistre, Dominique Marc Placko
  • Patent number: 7450237
    Abstract: The invention relates to a device which is used for the non-invasive detection of an electric potential or field, of the spatial and/or the temporal derivatives thereof, in a medium with a linear or quadratic electrooptical effect. The inventive device comprises: an optical source which is used to illuminate at least one zone of the medium that is to be probed with a light beam, the path of which defines an optical axis; and means for mapping the phase shift of the beam in the zone to be probed. Measuring means which are used to map the light beam phase shift comprise a confocal microscope in which the zone to be probed is placed in order to form an image of a plane of said zone.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: November 11, 2008
    Assignees: Centre National de la Reccherche Scientifique CNRS, Ecole Normale Superieure de Cachan
    Inventors: Joseph Zyss, Timothee Pol Jean Toury
  • Publication number: 20080260588
    Abstract: The invention relates to a durable hydrophilic non-porous surface-modified polymer composition, to aqueous fluid channels based on said composition, to a microfluidic system comprising said channels, to a method for the production thereof and to a microfluidic chip or cells incorporating said composition.
    Type: Application
    Filed: May 10, 2005
    Publication date: October 23, 2008
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ECOLE NORMALE SUPERIEURE DE CACHAN, ASSOCIATION POUR LES TRANSFERTS DE TECHNOLOGIE DU
    Inventors: Laurent Griscom, Bruno Le Pioufle, Gilbert Legeay
  • Publication number: 20080149272
    Abstract: The invention concerns a device for microstructuring the surface of at least one substrate characterized in that it comprises a support frame (2) including at least means (6) for conveying the substrate (S) comprising preferably means (15) for supporting the substrate adapted to maintain the substrate in or relative to each of the modules so as to avoid any change of support when the substrate is shifted from one module to the other, a module for applying a photosensitive resin layer on the substrate, a module (20) for automatic exposure using a laser beam of the resin layer on the substrate based on a programmed scheme, a so-called developing module for removing the part of the resin layer which has been exposed of the part or the resin layer which has not been exposed, a module for chemically etching the substrate, a module for cleaning the substrate, and a control unit (7).
    Type: Application
    Filed: July 1, 2005
    Publication date: June 26, 2008
    Applicants: ECOLE NORMALE SUPERIEURE DE LYON, CENTRE NATIONAL DE LA RECHERCHE SCIENTRIQUE - CNRS
    Inventors: Djamel Bouraya, Christophe Place
  • Publication number: 20080100156
    Abstract: A method of compensating vibration of an electrical machine comprising a stator and a moving portion, said stator being subjected to magnetic forces generated by alternating electrical excitation and leading to deformation thereof. The method comprises exciting piezoelectric actuators secured at predetermined action locations on the outside surface of the stator, said piezoelectric actuators being arranged to produce controlled deformation in said stator to counter the deformation induced by the magnetic forces.
    Type: Application
    Filed: September 5, 2005
    Publication date: May 1, 2008
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ECOLE NORMALE SUPERIEURE DE CACHAN
    Inventors: Mohamed Khemis Gabsi, Xavier Mininger
  • Publication number: 20080007248
    Abstract: The invention relates to a device which is used for the non-invasive detection of an electric potential or field, of the spatial and/or the temporal derivatives thereof, in a medium with a linear or quadratic electrooptical effect. The inventive device comprises: an optical source which is used to illuminate at least one zone of the medium that is to be probed with a light beam, the path of which defines an optical axis; and means for mapping the phase shift of the beam in the zone to be probed. Measuring means which are used to map the light beam phase shift comprise a confocal microscope in which the zone to be probed is placed in order to form an image of a plane of said zone.
    Type: Application
    Filed: August 18, 2004
    Publication date: January 10, 2008
    Applicants: Centre National De La Recherche Scientifque-CNRS, Ecole Normale Superieure De Cachan
    Inventors: Joseph Zyss, Timothee Pol Jean Toury
  • Publication number: 20070155668
    Abstract: The invention relates to peptides which can become fixed to the engrailed transcription factor and which can modulate the activity thereof.
    Type: Application
    Filed: May 19, 2004
    Publication date: July 5, 2007
    Applicants: Centre National De La Recherche Scient., Ecole Normale Superieure, UNIVERSITE PARIS 13 NORD
    Inventors: Alain Prochiantz, Brigitte Lesaffre, Michel Volovitch, Laure Sonnier
  • Publication number: 20070070352
    Abstract: The invention relates to a device useful for non-invasive detection of the properties of a medium by means of interferometry. The device comprises an optical source which is used for illuminating a zone of the medium that is to be probed with a light beam, and an interferometer for splitting the light beam into a reference beam and a probe beam. The interferometer has a cutoff frequency for the automatic control of respective path lengths of the reference beam and of the probe beam. The device also comprises scanning means which, together with the probe beam, are used to scan the zone to be probed at an image acquisition frequency greater than the cutoff frequency.
    Type: Application
    Filed: August 18, 2004
    Publication date: March 29, 2007
    Applicants: Centre National De La Recherche Scientifque-CNRS, Ecole Normale Superieure De Cachan
    Inventors: Timothee, Toury, Joseph Zyss
  • Publication number: 20070065803
    Abstract: The present invention relates to a bone system model comprising a mineralized matrix and osteoblasts, chararacterized in that the osteoblasts are deposited onto the matrix so as to form a layer at confluence and/or nodules, and the osteoclasts are deposited onto said layer and/or said nodules, and also to bone system models affected by various pathologies. The invention also covers the uses for carrying out screenings and tests for aggressiveness and for toxicity.
    Type: Application
    Filed: June 11, 2004
    Publication date: March 22, 2007
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ECOLE NORMALE SUPERIEURE DE LYON
    Inventors: Pierre Jurdic, Olivier Destaing, Frederic Saltel, Edith Bonnelye
  • Publication number: 20070054401
    Abstract: The invention relates to a composition comprising a macromolecule or particle having one or several hydrophobic domains on the surface thereof whereby at least one transducer peptide is adsorbed thereon. Said composition can be used to introduce the macromolecule or particle into living cells.
    Type: Application
    Filed: December 31, 2003
    Publication date: March 8, 2007
    Applicants: Centre National De La Recherche Scientifique, Ecole Normale Superieure
    Inventors: Alain Prochiantz, Edmond Dupont, Alain Joliot, Alain Trembleau, Michel Volovitch
  • Publication number: 20060238070
    Abstract: An electronic circuit provided with a piezoelectric transformer for driving an electronic component. The transformer is integrated in the circuit, a first layer of the circuit having a first primary piezoelectric plate integrated therein, a second layer having a secondary piezoelectric plate integrated therein and connected to the electronic component, and an intermediate layer comprising an insulating material is interposed between the primary and secondary plates.
    Type: Application
    Filed: April 29, 2004
    Publication date: October 26, 2006
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE-CNRS, ECOLE NORMALE SUPERIEURE DE CACHAN
    Inventors: Francois Costa, Dejan Vasic, Emmanuel Sarraute
  • Patent number: 7027376
    Abstract: The invention concerns a method for optical recording of data on a photosensitive storage medium, characterized in that the data are encoded according to different possible states for the various components of a non-linear susceptibility tensor of the photosensitive medium and it consists in irradiating simultaneously at least a point of said support with write beams whereof the polarization is controlled for optical recording of a given non-linear susceptibility tensor on the photosensitive medium.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: April 11, 2006
    Assignees: France Telecom, Centre National de la Recherche Scientifique (CNRS), Ecole Normale Superieure de Cachan
    Inventors: Eric Toussaere, Joseph Zyss
  • Patent number: 7009390
    Abstract: The invention relates to a method for characterizing a ferroelectric material, comprising application of an electric voltage to a sample of said ferroelectric material, measuring the electric current flowing through said sample, and joint treatment of the applied voltage signal and the measured current signal in order to provide representation data characterizing the polarization of the ferroelectric material. The method also includes controlling the applied electric voltage in such a way that superpositioning can be performed for a first current component having a large signal amplitude at a first frequency and a second current component having a second small signal amplitude at a second frequency which is much greater than the first frequency, and identifying the characteristics of the ferromagnetic material respectively associated with locally reversible polarization effects and locally irreversible polarization effects.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: March 7, 2006
    Assignees: Centre Nationa de la Recherche Scientifique-CNRS, Ecole Normale Superieure de Cachan
    Inventors: Lionel Cima, Eric Laboure
  • Publication number: 20050248973
    Abstract: The invention relates to a method for characterizing a ferroelectric material, comprising application of an electric voltage to a sample of said ferroelectric material, measuring the electric current flowing through said sample, and joint treatment of the applied voltage signal and the measured current signal in order to provide representation data characterizing the polarization of the ferroelectric material. The method also includes controlling the applied electric voltage in such a way that superpositioning can be performed for a first current component having a large signal amplitude at a first frequency and a second current component having a second small signal amplitude at a second frequency which is much greater than the first frequency, and identifying the characteristics of the ferromagnetic material respectively associated with locally reversible polarization effects and locally irreversible polarization effects.
    Type: Application
    Filed: September 16, 2003
    Publication date: November 10, 2005
    Applicants: Centre National De La Recherche Scientifique-cnrs, Ecole Normale Superieure De Cachan
    Inventors: Lionel Cima, Eric Laboure
  • Publication number: 20040191230
    Abstract: A pharmaceutical composition for the treatment, prevention or diagnosis of a tumoral pathology comprising an active agent which stabilizes an actin network of a cellular cytoskeleton.
    Type: Application
    Filed: December 18, 2003
    Publication date: September 30, 2004
    Applicants: Bioalliance Pharma, a corporation of France, Ecole Normale Superieure de Cachan, a corporation of France, Institut Gustave Roussy - IGR, a corporation of France, Centre National de la Recherche Scientifique - CNRS, a corporation of France
    Inventors: Christian Auclair, Valerie Amsellem, Martial Hervy, Frederic Subra
  • Patent number: 6114168
    Abstract: A culture medium for culturing chicken embryonic stem (ES) cells is disclosed. The culture medium is used for supporting avian ES cell cultures. The components of the avian ES cell media include cytokines, fibroblast growth factors, insulin-like growth factors and stem cell growth factors and anti-retinoic acid antibody. The culture medium is substantially free of active retinoic acid. A method for culturing avian ES cells and the resulting products are also disclosed.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: September 5, 2000
    Assignees: Institute National de la Recherche Agronomique, Centre National de la Recherche Scientifique (CNRS), Ecole Normale Superieure de Lyon
    Inventors: Jacques Samarut, Bertrand Pain
  • Patent number: 5661350
    Abstract: A device for a linear actuator, including a mobile assembly moving relative to a stator in a traveling direction. The assembly includes an excitation winding and an armature comprising pole pieces and permanent magnets. The stator is a simple guide tube defining the path of the mobile assembly, and may be made from a profiled ferromagnetic material, with holes extending through two walls thereof to define stator poles in two rows mutually longitudinally offset by a half pitch.
    Type: Grant
    Filed: May 3, 1995
    Date of Patent: August 26, 1997
    Assignee: Ecole Normale Superieure de Cachan (Lesir)
    Inventors: Jean Lucidarme, Michel Lecrivain, Bernard Multon, Laurent Prevond