Patents by Inventor Tetsuji Imoto

Tetsuji Imoto 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).

  • Vehicular antenna device
    Patent number: 6870509
    Abstract: A plurality of glass antennas formed as patterns on quarter glass panes are provided in opposite sides of a rearward portion of a vehicle body. Branching filters connected to feeding points of the glass antennas via coaxial cables, phase-shift circuits for phase adjustment of the FM band outputs separated by the branching filters, and combining circuits for combining the FM band outputs that have been phase-adjusted by the phase-shift circuits are contained in a shield case that is grounded to the vehicle body. The outer conductors of the coaxial cables at the branching filter side are grounded to the shield case therein.
    Type: Grant
    Filed: February 10, 2003
    Date of Patent: March 22, 2005
    Assignees: Toyota Jidosha Kabushiki Kaisha, Fujitsu Ten Limited
    Inventors: Junzo Ooe, Tetsuji Imoto
  • Vehicular antenna device
    Publication number: 20030156070
    Abstract: A plurality of glass antennas formed as patterns on quarter glass panes are provided in opposite sides of a rearward portion of a vehicle body. Branching filters connected to feeding points of the glass antennas via coaxial cables, phase-shift circuits for phase adjustment of the FM band outputs separated by the branching filters, and combining circuits for combining the FM band outputs that have been phase-adjusted by the phase-shift circuits are contained in a shield case that is grounded to the vehicle body. The outer conductors of the coaxial cables at the branching filter side are grounded to the shield case therein.
    Type: Application
    Filed: February 10, 2003
    Publication date: August 21, 2003
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Junzo Ooe, Tetsuji Imoto