Patents by Inventor Kouji Yamano

Kouji Yamano 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).

  • Magnetostatic wave device and disturbance wave eliminator
    Patent number: 6816038
    Abstract: A YIG film formed on a GGG substrate is separated by a stepwise groove for preparing YIG films having different intervals between end surfaces, and two YIG films resonating magnetostatic waves between the end surfaces having different intervals are coupled with each other thereby forming a resonator.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: November 9, 2004
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Takashi Umemoto, Kouji Yamano, Atsushi Maeda
  • Magnetostatic wave device and disturbance wave eliminator
    Publication number: 20020097115
    Abstract: A YIG film formed on a GGG substrate is separated by a stepwise groove for preparing YIG films having different intervals between end surfaces, and two YIG films resonating magnetostatic waves between the end surfaces having different intervals are coupled with each other for forming a resonator. Alternatively, a GGG substrate is arranged on a grounded substrate for arranging a YIG film on the GGG substrate, arranging ferromagnetic layers on both longitudinal ends of the YIG film on the main surface of the YIG film respectively, applying a dc magnetic field along the longitudinal direction of the YIG film, inputting an input signal from an input electrode arranged on the YIG film for propagating a magnetostatic wave through the YIG film and obtaining an output signal from an output electrode arranged on the YIG film.
    Type: Application
    Filed: November 20, 2001
    Publication date: July 25, 2002
    Inventors: Takashi Umemoto, Kouji Yamano, Atsushi Maeda