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Akihiro Toya

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  • Nagoya, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Spark plug for internal combustion engine
    • Patent number 5,109,178
    • Issue date Apr 28, 1992
    • NGK Spark Plug Co., Ltd.
    • Mitsutaka Yoshida
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Spark plug
    • Patent number 4,786,267
    • Issue date Nov 22, 1988
    • NGK Spark Plug Co., Ltd.
    • Akihiro Toya
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Spark plug
    • Patent number 4,743,793
    • Issue date May 10, 1988
    • NGK Spark Plug Co., Ltd.
    • Akihiro Toya
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Electrode structure for a spark plug
    • Patent number 4,659,960
    • Issue date Apr 21, 1987
    • NGK Spark Plug Co., Ltd.
    • Akihiro Toya
    • H01 - BASIC ELECTRIC ELEMENTS