Patents by Inventor Nobuyuki Gakuhari

Nobuyuki Gakuhari 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).

  • Method of constructing a composite receiving band filter
    Publication number: 20020045426
    Abstract: In a radio transmission/receiving device in which the same communication frequency band is used for transmission and receiving modes, a low pass filter for preventing higher harmonics is arranged between an antenna and a transmission circuit under the transmission mode and a band filter for band selection is arranged between the antenna and a receiving circuit under the receiving mode, whereby a reduction of production costs of the system is achieved at by reducing the number of elements required for the band filter.
    Type: Application
    Filed: October 10, 2001
    Publication date: April 18, 2002
    Applicant: VERTEX STANDARD CO., LTD.
    Inventors: Hiroshi Ogi, Nobuyuki Gakuhari