Patents by Inventor Takashi Onogi

Takashi Onogi 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 member and manufacturing method thereof
    Patent number: 6378649
    Abstract: The speaker member of the present invention comprises (a) a vibrating plate part comprising a base material, a part of the base material being impregnated with a thermosetting resin; and (b) an edge part containing the same base material as that of the vibrating plate. Such a speaker member is obtained by a method comprising the steps of: forming a base material; impregnating a portion of the base material with a thermosetting resin wherein the portion is to be a vibrating plate part; and curing said impregnated thermosetting resin so as to form the vibrating plate part, and simultaneously forming an edge part.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: April 30, 2002
    Assignee: Onkyo Corporation
    Inventors: Toshihide Inoue, Yushi Ono, Takashi Onogi, Kazumasa Takemura, Hiroyasu Kumo
  • Loudspeaker diaphragm and process for producing same
    Patent number: 4377617
    Abstract: A dome-shaped diaphragm for loudspeakers comprising a substrate fabric of synthetic fiber, a poly-urethane elastomer film for giving airtightness to the substrate fabric, and a viscoelastic resin adhesive adhering the fabric and the film together.
    Type: Grant
    Filed: December 2, 1981
    Date of Patent: March 22, 1983
    Assignee: Onkyo Kabushiki Kaisha
    Inventors: Akira Ikei, Motoharu Akahama, Tokisuke Wada, Takashi Onogi