Patents by Inventor Shigetsugu Tsuruoka

Shigetsugu Tsuruoka 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).

  • Patent number: 8779873
    Abstract: In a ferrite phase shifter, a temperature rise at ferrites can be suppressed to maintain the characteristics of the frites even when used at high power. Thus, the phase shifter can stably demonstrate high performance. The ferrite phase shifter includes a rectangular waveguide, substantially sheet-like ferrites disposed to face each other with respective mounting surfaces kept in tight contact with inner walls of wide surfaces of the rectangular waveguide facing each other, and a coil which is wound around the periphery of the rectangular waveguide in a position substantially corresponding to the position of the ferrites and through which a current is passed.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: July 15, 2014
    Assignee: Nihon Koshuha Co., Ltd.
    Inventors: Kibatsu Shinohara, Shigetsugu Tsuruoka
  • Patent number: 8427254
    Abstract: In a ferrite phase shifter, a temperature rise at ferrites can be suppressed to maintain the characteristics of the frites even when used at high power. Thus, the phase shifter can stably demonstrate high performance. The ferrite phase shifter includes a rectangular waveguide, substantially sheet-like ferrites disposed to face each other with respective mounting surfaces kept in tight contact with inner walls of wide surfaces of the rectangular waveguide facing each other, and a coil which is wound around the periphery of the rectangular waveguide in a position substantially corresponding to the position of the ferrites and through which a current is passed.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: April 23, 2013
    Assignee: Nihon Koshuha Co., Ltd.
    Inventors: Kibatsu Shinohara, Shigetsugu Tsuruoka
  • Publication number: 20120280764
    Abstract: In a ferrite phase shifter, a temperature rise at ferrites can be suppressed to maintain the characteristics of the frites even when used at high power. Thus, the phase shifter can stably demonstrate high performance. The ferrite phase shifter includes a rectangular waveguide, substantially sheet-like ferrites disposed to face each other with respective mounting surfaces kept in tight contact with inner walls of wide surfaces of the rectangular waveguide facing each other, and a coil which is wound around the periphery of the rectangular waveguide in a position substantially corresponding to the position of the ferrites and through which a current is passed.
    Type: Application
    Filed: July 19, 2012
    Publication date: November 8, 2012
    Applicant: NIHON KOSHUHA CO., LTD.
    Inventors: Kibatsu SHINOHARA, Shigetsugu TSURUOKA
  • Publication number: 20090128257
    Abstract: In a ferrite phase shifter, a temperature rise at ferrites can be suppressed to maintain the characteristics of the frites even when used at high power. Thus, the phase shifter can stably demonstrate high performance. The ferrite phase shifter includes a rectangular waveguide, substantially sheet-like ferrites disposed to face each other with respective mounting surfaces kept in tight contact with inner walls of wide surfaces of the rectangular waveguide facing each other, and a coil which is wound around the periphery of the rectangular waveguide in a position substantially corresponding to the position of the ferrites and through which a current is passed.
    Type: Application
    Filed: October 15, 2008
    Publication date: May 21, 2009
    Applicant: NIHON KOSHUHA Co., Ltd.
    Inventors: Kibatsu Shinohara, Shigetsugu Tsuruoka