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Sadamitsu Harada

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Patents Grantslast 30 patents

  • Information Patent Grant

    Glow plug and manufacturing method thereof
    • Patent number 9,644,842
    • Issue date May 9, 2017
    • NGK Spark Plug Co., Ltd.
    • Sadamitsu Harada
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Non-resonance type knock sensor
    • Patent number 6,923,041
    • Issue date Aug 2, 2005
    • NGK Spark Plug Co., Ltd.
    • Sadamitsu Harada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Nonresonant type knock sensor
    • Patent number 6,752,005
    • Issue date Jun 22, 2004
    • NGK Spark Plug Co., Ltd.
    • Sadamitsu Harada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Knocking detecting sensor
    • Patent number 5,852,234
    • Issue date Dec 22, 1998
    • NGK Spark Plug Co., Ltd.
    • Nobuhiro Inoue
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents