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Yasuhiko Hamada

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  • Nagoya, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Gas sensor and method for controlling the same
    • Patent number 7,655,131
    • Issue date Feb 2, 2010
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas sensor and method for controlling the same
    • Patent number 7,160,435
    • Issue date Jan 9, 2007
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas sensor and method for controlling the same
    • Patent number 6,623,618
    • Issue date Sep 23, 2003
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas sensor
    • Patent number 6,348,141
    • Issue date Feb 19, 2002
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas sensor
    • Patent number 6,290,829
    • Issue date Sep 18, 2001
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas sensor and method for controlling gas sensor
    • Patent number 6,290,840
    • Issue date Sep 18, 2001
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas sensor
    • Patent number 6,284,112
    • Issue date Sep 4, 2001
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas sensor
    • Patent number 6,120,663
    • Issue date Sep 19, 2000
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas sensor
    • Patent number 6,083,370
    • Issue date Jul 4, 2000
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas sensor
    • Patent number 6,059,947
    • Issue date May 9, 2000
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas sensor and method for controlling gas sensor
    • Patent number 6,010,615
    • Issue date Jan 4, 2000
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas sensor having a function for minimizing heater leak current
    • Patent number 5,976,335
    • Issue date Nov 2, 1999
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas sensor
    • Patent number 5,948,963
    • Issue date Sep 7, 1999
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Carbon monoxide sensor
    • Patent number 5,608,154
    • Issue date Mar 4, 1997
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Oxygen sensor
    • Patent number 5,238,552
    • Issue date Aug 24, 1993
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Oxygen sensor
    • Patent number 5,012,670
    • Issue date May 7, 1991
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Oxygen sensor
    • Patent number 4,929,331
    • Issue date May 29, 1990
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Oxygen sensors
    • Patent number 4,916,934
    • Issue date Apr 17, 1990
    • NGK Insulators, Ltd.
    • Hiroshi Nagata
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Heater-built-in oxygen sensor
    • Patent number 4,909,922
    • Issue date Mar 20, 1990
    • NGK Insulators, Ltd.
    • Nobuhide Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Exhaust gas sensor for determining A/F ratio
    • Patent number 4,824,549
    • Issue date Apr 25, 1989
    • NGK Insulators, Ltd.
    • Yasuhiko Hamada
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents