Patents by Inventor Shinichiroh Toda

Shinichiroh Toda 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).

  • Multi-layer band-pass filter
    Patent number: 7126444
    Abstract: A multi-layer band-pass filter comprises an unbalanced input, two balanced outputs, and a band-pass filter section provided between the unbalanced input and the two balanced outputs. The band-pass filter section incorporates a plurality of resonators each of which is made up of a TEM line. The band-pass filter further comprises a multi-layer substrate used for integrating the resonators. The band-pass filter section incorporates, as the resonators, an input resonator, and a half-wave resonator for balanced output that is made up of a half-wave resonator having open-circuited ends. The unbalanced input is connected to the input resonator through a capacitor. Each of the balanced outputs is connected to the half-wave resonator through a capacitor.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: October 24, 2006
    Assignee: TDK Corporation
    Inventors: Tatsuya Fukunaga, Hideya Matsubara, Shinichiroh Toda
  • Multi-layer band-pass filter
    Publication number: 20050052262
    Abstract: A multi-layer band-pass filter comprises an unbalanced input, two balanced outputs, and a band-pass filter section provided between the unbalanced input and the two balanced outputs. The band-pass filter section incorporates a plurality of resonators each of which is made up of a TEM line. The band-pass filter further comprises a multi-layer substrate used for integrating the resonators. The band-pass filter section incorporates, as the resonators, an input resonator, and a half-wave resonator for balanced output that is made up of a half-wave resonator having open-circuited ends. The unbalanced input is connected to the input resonator through a capacitor. Each of the balanced outputs is connected to the half-wave resonator through a capacitor.
    Type: Application
    Filed: August 31, 2004
    Publication date: March 10, 2005
    Applicant: TDK CORPORATION
    Inventors: Tatsuya Fukunaga, Hideya Matsubara, Shinichiroh Toda