Patents by Inventor Ronan Stephan

Ronan Stephan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11509045
    Abstract: A body part for a motorized land vehicle is provided. The body part includes at least one wall made of a plastic material and including at least one housing forming a cavity for electromagnetic waves, said housing includes: at least one transceiver for transmitting and/or receiving an electromagnetic wave in said housing; at least one adaptable surface capable of reflecting the electromagnetic wave transmitted by the transceiver in a given direction (in a controlled manner) and, conversely, capable of reflecting the electromagnetic wave coming from the exterior of the housing toward the transceiver.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: November 22, 2022
    Assignees: ECOLE SUPÉRIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, COMPAGNIE PLASTIC OMNIUM, GREENERWAVE SAS
    Inventors: Ronan Stephan, Mathieu Bancelin, Mathias Fink, Geoffroy Lerosey, Nicolas Etaix
  • Publication number: 20210203065
    Abstract: A body part for a motorized land vehicle is provided. The body part includes at least one wall made of a plastic material and including at least one housing forming a cavity for electromagnetic waves, said housing includes: at least one transceiver for transmitting and/or receiving an electromagnetic wave in said housing ; at least one adaptable surface capable of reflecting the electromagnetic wave transmitted by the transceiver in a given direction (in a controlled manner) and, conversely, capable of reflecting the electromagnetic wave coming from the exterior of the housing toward the transceiver.
    Type: Application
    Filed: August 23, 2019
    Publication date: July 1, 2021
    Applicants: COMPAGNIE PLASTIC OMNIUM, Centre National de la Recherche Scientifique, Greenerwave SAS, Ecole Supérieure de Physique et de Chimie Industrielles de la Ville de Paris
    Inventors: Ronan STEPHAN, Mathieu BANCELIN, Mathias FINK, Geoffroy LEROSEY, Nicolas ETAIX
  • Patent number: 5703425
    Abstract: The invention relates to a process for manufacturing a piezoelectric component and to the component resulting from such a process.According to the invention, the manufacturing process comprises the stacking of at least one piezoelectric element (1) and of at least two metallic electrodes (2), each piezoelectric element (1) being inserted between two metallic electrodes (2), characterized in that each piezoelectric element and each metallic electrode is produced, respectively, by coiling a piezoelectric film and by coiling a metallized film.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: December 30, 1997
    Assignee: Thomson-CSF
    Inventors: Thierry Feral, Bernard Fromont, Ronan Stephan, Eric Sernit, Olivier Lacour
  • Patent number: 5513424
    Abstract: A method for the manufacture of foil capacitors with metallized plastic films, said method comprising the following steps:coiling at least one pair of metallized plastic films so as to form the stacked structure of the capacitors;metallizing the lateral faces of the coiled structure in order to create the plates of the capacitors;cutting out the coiled and metallized structure, or parent capacitor, into semi-finished capacitors;putting the semi-finished capacitors and their connection wires through a cleansing flux;soldering the connection wires to the plates of the semi-finished capacitors;wherein the soldering is done by wave soldering and wherein, between said metallization and said cutting, a heat treatment operation designed to give the plastic film the characteristics needed to withstand the wave soldering and a new metallization designed to ensure the mechanical and electrical quality of the connections are carried out successively.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: May 7, 1996
    Assignee: Compagnie Europeene de Composants Electroniques LCC
    Inventors: Philippe Mysson, Ronan Stephan
  • Patent number: 5384005
    Abstract: A process for producing laminated capacitors includes stacking of metallized plastic films. It includes a step of winding of at least one pair of metallized plastic films, this step being separated into three phases, a first phase of making finishing turns and during which the films are demetallized so that their superposition does not lead to any additional capacitance in the final component, a second phase of superposing the films so that they contribute to the capacitance of the final component and during which the films are demetallized near their edges, and a third phase intended to perform finishing turns under the same conditions as during the first phase, wherein the demetallizations of the films occurring in the successive phases are performed by etching.
    Type: Grant
    Filed: January 19, 1994
    Date of Patent: January 24, 1995
    Assignee: Compagnie Europeenne de Composants Electroniques LCC
    Inventors: Nicolas Chapas, Philippe Mysson, Ronan Stephan
  • Patent number: 4923850
    Abstract: A superconducting magnetometer, using a superconducting compound at the temperature of liquid nitrogen, is disclosed. It consists in the use, as a sensitive element, of a piece of superconducting material with a central constriction enabling the demarcation of a channel in which the number of useful, intrinsic loops is sufficiently limited for the sensitive element to behave like a DC SQUID with a single loop.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: May 8, 1990
    Assignee: Thomson-CSF
    Inventors: Ronan Stephan, Martine Doisy, Yves Montfort, Didier Robbes, Marc L. C. Sing, Daniel Bloyet, Jackie Provost, Bernard Raveau