Patents by Inventor Kazutaka Iguchi

Kazutaka Iguchi 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).

  • Filter Circuit
    Publication number: 20020067226
    Abstract: A filter circuit comprising a balanced filter system, a non-balanced filter system, and two switching units. The balanced filter system includes balanced filter-matching circuits, each composed of parallel elements. The non-balanced filter system is connected to a voltage neutral point defined by dividing the parallel elements of each of the balanced filter-matching circuits to halves. The switching units are provided at the input and output of the balanced filter system, respectively, and switch the input and output of the balanced filter system, each from a balanced state to a non-balanced state, and vice versa.
    Type: Application
    Filed: October 19, 2001
    Publication date: June 6, 2002
    Inventor: Kazutaka Iguchi