Patents by Inventor Jean-François Lanson

Jean-François Lanson 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: 11609248
    Abstract: Electrical current transducer including an insulating body, a magnetic core comprising a central passage and a magnetic circuit gap, a magnetic field detector positioned in the magnetic circuit gap, and a sheet metal leadframe conductor arrangement comprising a primary conductor for carrying the current to be measured and secondary conductors for connecting the magnetic field detector to an external circuit, the primary conductor comprising a central portion extending through the central passage of the magnetic core, lateral extension arms extending from opposite ends of the central portion, and connection ends for connection to an external conductor, the secondary conductors comprising a plurality of conductors, each conductor comprising a sensing cell connection pad substantially aligned with the central portion of the primary conductor and a connection end for connection to the external circuit, the insulating body comprising an inner overmold portion surrounding a central portion of the primary conductor
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: March 21, 2023
    Assignee: LEM International SA
    Inventors: Jean-François Lanson, Pascal Morel
  • Patent number: 11346897
    Abstract: A magnetic field sensor comprises a signal conditioning IC and a magnetic field sensor IC, the magnetic field sensor IC being mounted on and connected to the signal conditioning IC. The magnetic field sensor IC comprises a semi-conductor substrate with a sensor active layer disposed an outer facing side of the magnetic field sensor opposite the signal conditioning IC. The sensor active layer is connected to conductive vias that extend through the semi-conductor substrate from said outer facing side to an underside facing the signal conditioning IC, an underside of the conductive via being electrically interconnected to a connection pad on the signal conditioning IC via a chip-on-chip interconnection comprising a conductive bead connection and a solder connection.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: May 31, 2022
    Assignee: LEM International SA
    Inventors: Jean-François Lanson, Dominik Schläfli
  • Publication number: 20220091195
    Abstract: A magnetic field sensor comprises a signal conditioning IC and a magnetic field sensor IC, the magnetic field sensor IC being mounted on and connected to the signal conditioning IC. The magnetic field sensor IC comprises a semi-conductor substrate with a sensor active layer disposed an outer facing side of the magnetic field sensor opposite the signal conditioning IC. The sensor active layer is connected to conductive vias that extend through the semi-conductor substrate from said outer facing side to an underside facing the signal conditioning IC, an underside of the conductive via being electrically interconnected to a connection pad on the signal conditioning IC via a chip-on-chip interconnection comprising a conductive bead connection and a solder connection.
    Type: Application
    Filed: March 13, 2020
    Publication date: March 24, 2022
    Applicant: LEM INTERNATIONAL SA
    Inventors: Jean-François Lanson, Dominik Schläfli
  • Publication number: 20210141004
    Abstract: Electrical current transducer including an insulating body, a magnetic core comprising a central passage and a magnetic circuit gap, a magnetic field detector positioned in the magnetic circuit gap, and a sheet metal leadframe conductor arrangement comprising a primary conductor for carrying the current to be measured and secondary conductors for connecting the magnetic field detector to an external circuit, the primary conductor comprising a central portion extending through the central passage of the magnetic core, lateral extension arms extending from opposite ends of the central portion, and connection ends for connection to an external conductor, the secondary conductors comprising a plurality of conductors, each conductor comprising a sensing cell connection pad substantially aligned with the central portion of the primary conductor and a connection end for connection to the external circuit, the insulating body comprising an inner overmold portion surrounding a central portion of the primary conductor
    Type: Application
    Filed: July 8, 2019
    Publication date: May 13, 2021
    Inventors: Jean-François Lanson, Pascal Morel