Patents by Inventor Hotaka Oguchi

Hotaka Oguchi 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 adjusting frequency response in a microwave strip-line filter device
    Patent number: 5291162
    Abstract: A method of adjusting a frequency response in a stripline filter device having a pair of stacked dielectric substrates with a plurality of stripline resonator conductors being sandwiched therebetween, wherein the frequency adjusting of the filter is performed by partially exposing the open circuit end of each of the resonator electrodes or a filamentary conductor for connecting the open end to the ground conducting layer on the outer surface of one of the dielectric substrates and then partially removing the partially exposed open circuit end of each resonator electrode or the partially exposed filamentary conductor connected to the open circuit end.
    Type: Grant
    Filed: May 13, 1992
    Date of Patent: March 1, 1994
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Kenji Ito, Hiroyuki Shimizu, Hotaka Oguchi