Patents by Inventor Jean-Christophe Riou

Jean-Christophe Riou 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).

  • Publication number: 20240170450
    Abstract: The method comprises the following successive steps: — depositing sintering material (26) onto one of an electronic component (28) and a substrate (30); — heating the material (26) so as to bring a temperature of the material to a preliminary exothermic peak, which precedes an exothermic sintering peak, without the temperature of the material reaching a maximum of the preliminary exothermic peak; — fastening the other of the component (28) and the substrate (30) to the material (26) so that the material is interposed between the component and the substrate; and— pressing the material (26) while hot so as to cause it to creep.
    Type: Application
    Filed: March 28, 2022
    Publication date: May 23, 2024
    Applicant: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Jean-Christophe RIOU, Corinne PONS, Alain JAUSSENT
  • Patent number: 11644355
    Abstract: A device for measuring the mass flow rate, including a flow pipe; a first set of actuators which are arranged in a first plane including a first transverse cross section of the pipe and perpendicular to the fluid flow path, these being configured to move selectively in the first plane; a control circuit configured to control a movement of the first and second actuators so that the cross-sectional area for flow through the pipe in the first plane remains constant; a measurement sensor measuring a force or a stress in a direction perpendicular to the flow path, in the vicinity of the actuators of the first set along the flow path; a computation device configured to calculate the mass flow rate passing through the flow pipe as a function of the force or stress measured by the sensor.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: May 9, 2023
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, SAFRAN
    Inventors: Agustin Palacios Laloy, Jean-Christophe Riou
  • Publication number: 20230058192
    Abstract: The invention relates to a device (2) for transferring heat from a thermally conductive plate (3) capable of capturing the heat from a zone placed on a first side (32) of the plate, the device comprising at least one fin (35) placed on a second side (34) of the plate (30) opposite the first side (32) and having a duct (36) extending in a longitudinal direction (L) between a first end (38) connected to the plate and a second end (4) opposite the first end and which opens out, the duct (36) being connected to at least one Venturi-effect neck (42) bringing cooling air into the duct, the neck (42) being formed in the vicinity of the first end of the duct and the plate (30).
    Type: Application
    Filed: February 19, 2021
    Publication date: February 23, 2023
    Inventors: Toni YOUSSEF, Stéphane Joseph AZZOPARDI, Jean-Christophe RIOU
  • Publication number: 20220406694
    Abstract: A conductive metal frame for a power electronics module comprising at least first and second power semiconductor components each having upper and lower faces, connectors for linking these power semiconductor components to external electrical circuits and at least one radiator for expelling via the conductive metal frame the heat flow generated by the power semiconductor components, the conductive metal frame being characterized in that the connectors, the at least one radiator and the conductive metal frame forming a single three-dimensional part made of a single material on an inner surface of which the first and second power semiconductor components are intended to be attached by their lower faces and provision is made for a central folding line so that, once the conductive metal frame is folded on itself, enclosing the first and second power semiconductor components, it provides a double-sided cooling assembly.
    Type: Application
    Filed: November 12, 2020
    Publication date: December 22, 2022
    Applicants: SAFRAN, SAFRAN ELECTRONICS & DEFENSE
    Inventors: Toni YOUSSEF, Stéphane Joseph AZZOPARDI, Thanh Long LE, Jean-Christophe RIOU, Nawres SRIDI-CONVERS
  • Patent number: 11444543
    Abstract: An electrical power module comprising power components and supports, each including at least one metal portion, the metal portions of the supports forming a substrate of the electrical power module, at least one support comprising two angled metal portions that are angled relative to each other at an angle that is greater than 0°, each power component being fastened to two metal portions of two distinct supports by being positioned between said two metal portions, the electrical power module being arranged in such a manner that electrical power currents going to or coming from the power components flow in the metal portions of the supports.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: September 13, 2022
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Jean-Christophe Riou, Eric Bailly, Nawres Sridi-Convers
  • Patent number: 11192776
    Abstract: A device having both an electronic assembly having an electronic component assembled on a first substrate, and also a body defining a cavity having a first end in fluid flow communication with a fluid, the electronic component extending inside the cavity and the first substrate including a portion in contact with a wall of the cavity. The coefficient of thermal expansion of the material of the first substrate is less than that of the electronic component, and the electronic component is assembled on the first substrate by a brazing type assembly method involving the application of heat. A method of making an electronic assembly. An assembly obtained by the method.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: December 7, 2021
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Jean-Christophe Riou, Nawres Sridi-Convers, Eric Bailly
  • Publication number: 20210348977
    Abstract: A pressure measurement device (1) comprising a housing (20) extending around an electronic card (30) provided with a pressure sensor (40); the housing (20) co-operating with a first face (31) of the electronic card (30) to define a first sealed volume (3); the housing (20) also co-operating with a second face (32) of the electronic card (30) that is opposite from the first face (31) to define a second sealed volume (4); the housing (20) including at least one first channel (24) putting the medium (5) outside the housing (20) into fluid flow communication with the first sealed volume (3); the electronic card (30) including at least one second channel (33) putting the first volume (3) into fluid flow communication with the second volume (4); and the connection between the housing (20) and the electronic card (30) being arranged to allow relative movement between the housing (20) and the electronic card.
    Type: Application
    Filed: August 27, 2019
    Publication date: November 11, 2021
    Inventors: Jean-Christophe RIOU, Eric BAILLY
  • Patent number: 11169042
    Abstract: A pressure measurement device (1) comprising a housing (20) extending around an electronic card (30) provided with a pressure sensor (40); the housing (20) co-operating with a first face (31) of the electronic card (30) to define a first sealed volume (3); the housing (20) also co-operating with a second face (32) of the electronic card (30) that is opposite from the first face (31) to define a second sealed volume (4); the housing (20) including at least one first channel (24) putting the medium (5) outside the housing (20) into fluid flow communication with the first sealed volume (3); the electronic card (30) including at least one second channel (33) putting the first volume (3) into fluid flow communication with the second volume (4); and the connection between the housing (20) and the electronic card (30) being arranged to allow relative movement between the housing (20) and the electronic card.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: November 9, 2021
    Assignees: SAFRAN ELECTRONICS & DEFENSE, COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, SAFRAN, SAFRAN LANDING SYSTEMS
    Inventors: Jean-Christophe Riou, Eric Bailly
  • Publication number: 20210309511
    Abstract: A device having both an electronic assembly having an electronic component assembled on a first substrate, and also a body defining a cavity having a first end in fluid flow communication with a fluid, the electronic component extending inside the cavity and the first substrate including a portion in contact with a wall of the cavity. The coefficient of thermal expansion of the material of the first substrate is less than that of the electronic component, and the electronic component is assembled on the first substrate by a brazing type assembly method involving the application of heat. A method of making an electronic assembly. An assembly obtained by the method.
    Type: Application
    Filed: October 9, 2019
    Publication date: October 7, 2021
    Inventors: Jean-Christophe RIOU, Nawres SRIDI-CONVERS, Eric BAILLY
  • Publication number: 20210255012
    Abstract: A device for measuring the mass flow rate, including a flow pipe; a first set of actuators which are arranged in a first plane including a first transverse cross section of the pipe and perpendicular to the fluid flow path, these being configured to move selectively in the first plane; a control circuit configured to control a movement of the first and second actuators so that the cross-sectional area for flow through the pipe in the first plane remains constant; a measurement sensor measuring a force or a stress in a direction perpendicular to the flow path, in the vicinity of the actuators of the first set along the flow path; a computation device configured to calculate the mass flow rate passing through the flow pipe as a function of the force or stress measured by the sensor.
    Type: Application
    Filed: September 3, 2019
    Publication date: August 19, 2021
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, SAFRAN
    Inventors: Agustin PALACIOS LALOY, Jean- Christophe RIOU
  • Patent number: 11047752
    Abstract: A pressure measurement device comprising a pressure sensor of a first type and a pressure sensor of a second type different from the first, which sensors are mounted on a common support in order to be subjected to the same pressure, in which the pressure sensor of the first type is of the capacitive type, the device being characterized in that the pressure sensor of the first type comprises at least one membrane and a first internal channel passing through the common support, a second internal channel bringing a fluid to the membrane being in fluid flow connection with the first internal channel. A calibration method associated with the device.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: June 29, 2021
    Assignee: Safran Electronics & Defense
    Inventors: Eric Bailly, Jean-Christophe Riou
  • Patent number: 10828697
    Abstract: An assembly method for assembling a first element to a second element by pressureless metal sintering, the method having a preparation step during which a sintering material is arranged at a bond interface of the elements, a pre-sintering step during which the assembly is heated for a first duration that is longer than five minutes at a first temperature that is higher than 200° C. and strictly lower than or equal to the temperature for activating diffusion at the grain boundaries, and a densification step during which the assembly is heated for a second duration at a second temperature that is higher than or equal to the temperature for activating diffusion at the grain boundaries.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: November 10, 2020
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Thomas Geoffroy, Jean-Christophe Riou, Eric Bailly
  • Publication number: 20200336078
    Abstract: An electrical power module comprising power components and supports, each including at least one metal portion, the metal portions of the supports forming a substrate of the electrical power module, at least one support comprising two angled metal portions that are angled relative to each other at an angle that is greater than 0°, each power component being fastened to two metal portions of two distinct supports by being positioned between said two metal portions, the electrical power module being arranged in such a manner that electrical power currents going to or coming from the power components flow in the metal portions of the supports.
    Type: Application
    Filed: November 16, 2018
    Publication date: October 22, 2020
    Inventors: Jean-Christophe RIOU, Eric BAILLY, Nawres SRIDI-CONVERS
  • Patent number: 10634569
    Abstract: A pressure measurement device comprising a pressure sensor of a first type and a pressure sensor of a second type different from the first, which sensors are mounted on a common support in order to be subjected to the same pressure, in which the pressure sensor of the first type is of the capacitive type, the device being characterized in that the pressure sensor of the first type comprises at least one membrane and a first internal channel passing through the common support, a second internal channel bringing a fluid to the membrane being in fluid flow connection with the first internal channel. A calibration method associated with the device.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: April 28, 2020
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Eric Bailly, Jean-Christophe Riou
  • Publication number: 20200064217
    Abstract: A pressure measurement device comprising a pressure sensor of a first type and a pressure sensor of a second type different from the first, which sensors are mounted on a common support in order to be subjected to the same pressure, in which the pressure sensor of the first type is of the capacitive type, the device being characterized in that the pressure sensor of the first type comprises at least one membrane and a first internal channel passing through the common support, a second internal channel bringing a fluid to the membrane being in fluid flow connection with the first internal channel. A calibration method associated with the device.
    Type: Application
    Filed: November 4, 2019
    Publication date: February 27, 2020
    Inventors: Eric BAILLY, Jean-Christophe RIOU
  • Patent number: 10420218
    Abstract: An electronic system including at least one component, two identical packages including a bottom from which a peripheral rim protrudes defining a recess, and electrical conductors passing through each package, the packages being attached to one another by the rim thereof so as to define a sealed cavity therebetween. An electronic device including two systems of this type superimposed on one another.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: September 17, 2019
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventor: Jean-Christophe Riou
  • Patent number: 10288510
    Abstract: A pressure measuring device comprising a bracket supporting a pressure sensor which defines a first sealed enclosure with a first face of the bracket, with the pressure measuring device comprising a substrate having opposite faces, opposite which a first deformable membrane and a second deformable membrane respectively extend, with the first membrane and the second membrane respectively defining with the substrate a second sealed enclosure and a third sealed membrane, with the pressure sensor comprising a cover in order to define a fourth sealed enclosure connected through a second channel to the first enclosure, with the pressure sensor comprising means for measuring the deformation of the first and the second deformable membranes.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: May 14, 2019
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Jean-Christophe Riou, Eric Bailly
  • Patent number: 10288516
    Abstract: A pressure detection device including a mount whereon a pressure sensor is attached which comprises a membrane which has a surface intended to be subjected to a pressurized fluid and which is so arranged as to elastically deform according to pressure, and means for determining the deformation of the membrane along an axis normal to a mid-plane of the membrane in the rest state. The membrane is supported by a frame connected to the mount by a mechanical decoupling structure in order to isolate the membrane from stress resulting from a differential thermal expansion between the frame and the mount, with the membrane and the frame being made of the same material.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: May 14, 2019
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Jean-Christophe Riou, Eric Bailly
  • Publication number: 20190047044
    Abstract: An assembly method for assembling a first element to a second element by pressureless metal sintering, the method having a preparation step during which a sintering material is arranged at a bond interface of the elements, a pre-sintering step during which the assembly is heated for a first duration that is longer than five minutes at a first temperature that is higher than 200° C. and strictly lower than or equal to the temperature for activating diffusion at the grain boundaries, and a densification step during which the assembly is heated for a second duration at a second temperature that is higher than or equal to the temperature for activating diffusion at the grain boundaries.
    Type: Application
    Filed: September 15, 2016
    Publication date: February 14, 2019
    Inventors: Thomas GEOFFROY, Jean-Christophe RIOU, Eric BAILLY
  • Publication number: 20190008047
    Abstract: An electronic system including at least one component, two identical packages including a bottom from which a peripheral rim protrudes defining a recess, and electrical conductors passing through each package, the packages being attached to one another by the rim thereof so as to define a sealed cavity therebetween. An electronic device including two systems of this type superimposed on one another.
    Type: Application
    Filed: September 15, 2016
    Publication date: January 3, 2019
    Inventor: Jean-Christophe RIOU