Patents by Inventor Fabrice MARTEAU

Fabrice MARTEAU 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).

  • Speaker driver with two opposite magnets
    Patent number: 11979726
    Abstract: The speaker comprises a magnetic circuit. The speaker comprises mobile equipment that is movable relative to the magnetic circuit. The spool holder is mounted movably through air gaps and a guide element of the mobile equipment is arranged between the mobile equipment and a frame, on the side of a membrane relative to the magnetic circuit. The mobile equipment passes all the way through the magnetic circuit through end air gaps. The speaker includes a complementary guide element, arranged between the mobile equipment and the frame, on the side opposite the membrane relative to the magnetic circuit.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: May 7, 2024
    Assignee: DEVIALET
    Inventors: Jean-Loup Afresne, Fabrice Marteau
  • Speaker Driver With Two Opposite Magnets
    Publication number: 20220386032
    Abstract: The speaker comprises a magnetic circuit. The speaker comprises mobile equipment that is movable relative to the magnetic circuit. The spool holder is mounted movably through air gaps and a guide element of the mobile equipment is arranged between the mobile equipment and a frame, on the side of a membrane relative to the magnetic circuit. The mobile equipment passes all the way through the magnetic circuit through end air gaps. The speaker includes a complementary guide element, arranged between the mobile equipment and the frame, on the side opposite the membrane relative to the magnetic circuit.
    Type: Application
    Filed: May 27, 2022
    Publication date: December 1, 2022
    Inventors: Jean-Loup AFRESNE, Fabrice MARTEAU