Patents by Inventor Akira Nukiyama

Akira Nukiyama 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).

  • Network analyzer
    Patent number: 5321364
    Abstract: A network analyzer having .means for determining the type and element values of a hypothetical lossless matching circuit for a device under test (DUT) and for computing and displaying S parameters of the DUT in combination with the matching circuit.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: June 14, 1994
    Assignee: Hewlett Packard Company
    Inventors: Akira Nukiyama, Hideki Yamashita