Patents by Inventor Kiyoharu Imaeda

Kiyoharu Imaeda 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 production method and gas sensor
    Patent number: 7631539
    Abstract: A method of producing a gas sensor is provided. The method includes a disposition step of preparing an elastic seal member having a main body portion and a smaller diameter portion that is smaller in outer diameter than the main body portion, disposing the entire main body portion and a part of the smaller diameter portion inside a tubular metallic member and allowing a remaining part of the smaller diameter portion to protrude outward from a rear end of the tubular metallic member, and a crimping step of crimping at least a portion of the tubular metallic member radially inward and thereby compressively deforming the elastic seal member. A gas sensor is also provided.
    Type: Grant
    Filed: January 5, 2005
    Date of Patent: December 15, 2009
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Shoji Akatsuka, Kouji Ogawa, Kiyoharu Imaeda, Nobuo Kawai, Osamu Shinkai
  • Gas sensor production method and gas sensor
    Publication number: 20070167079
    Abstract: A method of producing a gas sensor is provided. The method includes a disposition step of preparing an elastic seal member having a main body portion and a smaller diameter portion that is smaller in outer diameter than the main body portion, disposing the entire main body portion and a part of the smaller diameter portion inside a tubular metallic member and allowing a remaining part of the smaller diameter portion to protrude outward from a rear end of the tubular metallic member, and a crimping step of crimping at least a portion of the tubular metallic member radially inward and thereby compressively deforming the elastic seal member. A gas sensor is also provided.
    Type: Application
    Filed: January 5, 2005
    Publication date: July 19, 2007
    Applicant: NGK SPARK PLUG CO., LTD
    Inventors: Shoji Akatsuka, Kouji Ogawa, Kiyoharu Imaeda, Nobuo Kawai, Osamu Shinkai