Patents by Inventor Morio Onoda

Morio Onoda 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).

  • Gas sensor and gas concentration detecting device
    Patent number: 6892565
    Abstract: A gas sensor includes an element case 42 with an internal peripheral surface formed as a taper surface 100. A portion of a housing section 43 surrounded by the taper surface 100 and a protective film 48 is filled with a filler 49. When the filler 49 thermally expands at high temperature, the filler 49 is subjected to a component of force in an upward direction by the taper surface 100. Therefore, projection of an element portion 44 involving deformation of the protective film 48 is suppressed, a change ?L of a propagation distance L to a reflecting section 33 is also suppressed, and a detection accuracy never decreases. In addition, reverberation is reduced.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: May 17, 2005
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Yoshikuni Sato, Hideki Ishikawa, Morio Onoda, Takeshi Morita, Noboru Ishida
  • Gas sensor and gas concentration detecting device
    Publication number: 20030217584
    Abstract: A gas sensor includes an element case 42 with an internal peripheral surface formed as a taper surface 100. A portion of a housing section 43 surrounded by the taper surface 100 and a protective film 48 is filled with a filler 49. When the filler 49 thermally expands at high temperature, the filler 49 is subjected to a component of force in an upward direction by the taper surface 100. Therefore, projection of an element portion 44 involving deformation of the protective film 48 is suppressed, a change &Dgr;L of a propagation distance L to a reflecting section 33 is also suppressed, and a detection accuracy never decreases. In addition, reverberation is reduced.
    Type: Application
    Filed: March 6, 2003
    Publication date: November 27, 2003
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Yoshikuni Sato, Hideki Ishikawa, Morio Onoda, Takeshi Morita, Noboru Ishida