Patents by Inventor Tamotu Uchida

Tamotu Uchida 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).

  • Voice coil with rectangular coil wire and foil leads
    Patent number: 5027412
    Abstract: A coil for a speaker in which a rectangular coil wire is formed by being cut from a sheet and then wound on the bobbin with its long direction disposed radially. Electrical connection is made to at least one end of the coil wire by ultrasonic welding to a conductive foil laid between the coil wire and the bobbin.
    Type: Grant
    Filed: February 16, 1989
    Date of Patent: June 25, 1991
    Assignee: Pioneer Electronic Corporation
    Inventors: Junkichi Hayashi, Tamotu Uchida
  • Method of making a voice coil with rectangular coil wire and foil leads
    Patent number: 4825533
    Abstract: A coil for a speaker in which a rectangular coil wire is formed by being cut from a sheet and then wound on the bobbin with its long direction disposed radially. Electrical connection is made to at least one end of the coil wire by ultrasonic welding to a conductive foil laid between the coil wire and the bobbin.
    Type: Grant
    Filed: October 10, 1986
    Date of Patent: May 2, 1989
    Assignee: Pioneer Electronic Corporation
    Inventors: Junkichi Hayashi, Tamotu Uchida