Patents by Inventor Yoshifumi Misu

Yoshifumi Misu 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).

  • Lumped element circulator having a plurality of separated operation bands
    Patent number: 6236285
    Abstract: A lumped element circulator having a plurality of operation bands, has a circulator element with a plurality of signal ports and a grounded terminal, and resonance circuits connected between the signal ports and the grounded terminal, respectively, each of the resonance circuits having a plurality of resonance points. The number of the operation bands is equal to the number of the resonance points of each of the resonance circuits.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: May 22, 2001
    Assignees: K Laboratory Co., TDK Corporation
    Inventors: Yoshihiro Konishi, Taro Miura, Akira Usami, Yoshifumi Misu