TREA

Tetsusyo Yamada

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  • Nagoya, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Reinforced electrolyte function elements
    • Patent number 5,110,442
    • Issue date May 5, 1992
    • NGK Spark Plug Co., Ltd.
    • Takao Kojima
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Method of adjusting a gas sensor
    • Patent number 5,064,693
    • Issue date Nov 12, 1991
    • NGK Spark Plug Co., Ltd.
    • Nobuhiro Hayakawa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Solid electrolyte air/fuel ratio sensor with voltage control
    • Patent number 5,047,137
    • Issue date Sep 10, 1991
    • NGK Spark Plug Co., Ltd.
    • Tetsusyo Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Air/fuel ratio sensor
    • Patent number 4,935,119
    • Issue date Jun 19, 1990
    • NGK Spark Plug Co., Ltd.
    • Tetsusyo Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Reinforced plate-like sintered bodies
    • Patent number 4,840,854
    • Issue date Jun 20, 1989
    • NGK Spark Plug Co., Ltd.
    • Takao Kojima
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Air/fuel ratio detector
    • Patent number 4,839,018
    • Issue date Jun 13, 1989
    • NGK Spark Plug Co., Ltd.
    • Tetsusyo Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Air-fuel ratio sensor
    • Patent number 4,836,906
    • Issue date Jun 6, 1989
    • NGK Spark Plug Co., Ltd.
    • Tetsusyo Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Plate-like ceramic heater
    • Patent number 4,806,739
    • Issue date Feb 21, 1989
    • NGK Spark Plug Co., Ltd.
    • Takao Kojima
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Air-fuel ratio detecting device
    • Patent number 4,792,387
    • Issue date Dec 20, 1988
    • NGK Spark Plug Co., Ltd.
    • Toshiyuki Ishihara
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Plate-like alumina heater
    • Patent number 4,785,150
    • Issue date Nov 15, 1988
    • NGK Spark Plug So., Ltd.
    • Takao Kojima
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Air/fuel ratio sensor apparatus for use with internal combustion en...
    • Patent number 4,753,203
    • Issue date Jun 28, 1988
    • NGK Spark Plug Co., Ltd.
    • Tetsusyo Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Air/fuel ratio detector
    • Patent number H427
    • Issue date Feb 2, 1988
    • NGK Spark Plug Co., Ltd.
    • Shintaro Hirate
    • 204 - Chemistry: electrical and wave energy
  • Information Patent Grant

    Gas sensor with gas diffusion chamber between two platy solid elect...
    • Patent number 4,722,778
    • Issue date Feb 2, 1988
    • NGK Spark Plug Co., Ltd.
    • Nobuhiro Hayakawa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Air/fuel ratio sensor
    • Patent number 4,722,779
    • Issue date Feb 2, 1988
    • NGK Spark Plug Co., Ltd.
    • Tetsusyo Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Oxygen sensor
    • Patent number 4,629,549
    • Issue date Dec 16, 1986
    • NGK Spark Plug Co., Ltd.
    • Takao Kojima
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Air-fuel ratio sensor
    • Patent number 4,624,770
    • Issue date Nov 25, 1986
    • NGK Spark Plug Co., Ltd.
    • Tetsusyo Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Air/fuel ratio detector
    • Patent number 4,615,787
    • Issue date Oct 7, 1986
    • Mitsubishi Denki NGK Spark Plug Co. Ltd.
    • Tetsusyo Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Air/fuel ratio detector
    • Patent number 4,594,139
    • Issue date Jun 10, 1986
    • Mitsubishi Denki Kabushiki Kaisha
    • Yoshiaki Asayama
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Air/fuel ratio detector
    • Patent number 4,591,421
    • Issue date May 27, 1986
    • NGK Spark Plug Co., Ltd.
    • Tetsusyo Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Air/fuel ratio detector
    • Patent number 4,578,172
    • Issue date Mar 25, 1986
    • NGK Spark Plug Co.
    • Tetsusyo Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Air/fuel ratio detector
    • Patent number 4,578,171
    • Issue date Mar 25, 1986
    • NGK Spark Plug Co., Ltd.
    • Tetsusyo Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Oxygen sensor
    • Patent number 4,505,806
    • Issue date Mar 19, 1985
    • NGK Spark Plug Co., Ltd.
    • Tetsusyo Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Oxygen sensor
    • Patent number 4,505,807
    • Issue date Mar 19, 1985
    • NGK Spark Plug Co., Ltd.
    • Tetsusyo Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Oxygen sensor
    • Patent number 4,498,968
    • Issue date Feb 12, 1985
    • NGK Spark Plug Co., Ltd.
    • Tetsusyo Yamada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Oxygen sensor
    • Patent number 4,450,065
    • Issue date May 22, 1984
    • NGK Spark Plug Co., Ltd.
    • Tetsusyo Yamada
    • G01 - MEASURING TESTING