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Tatsuo Hirai

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  • Shiga, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tightening device and tightening method
    • Patent number 9,776,453
    • Issue date Oct 3, 2017
    • Fuji Jukogyo Kabushiki Kaisha
    • Katsuhiro Fujimoto
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Tightening device
    • Patent number 9,645,026
    • Issue date May 9, 2017
    • TONE CO., LTD.
    • Katsuhiro Fujimoto
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Wireless data transmitting and receiving system
    • Patent number 8,264,374
    • Issue date Sep 11, 2012
    • Maeda Metal Industries, Ltd.
    • Takayoshi Obatake
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Tightening torque measuring unit
    • Patent number 7,992,455
    • Issue date Aug 9, 2011
    • Maeda Metal Industries, Ltd.
    • Toshihiko Kushida
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Bolt or nut tightening device
    • Patent number 7,886,635
    • Issue date Feb 15, 2011
    • Maeda Metal Industries, Ltd.
    • Yasunobu Kaneyama
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Bolt or nut tightening device
    • Patent number 7,757,587
    • Issue date Jul 20, 2010
    • Maeda Metal Industries, Ltd.
    • Yasunobu Kaneyama
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Power increasing device with a display for wrench
    • Patent number D605539
    • Issue date Dec 8, 2009
    • Maeda Metal Industries, Ltd.
    • Tatsuo Hirai
    • D10 - Measuring, testing, or signalling instruments
  • Information Patent Grant

    Tightening torque measuring unit and torque indicating tightening d...
    • Patent number 7,275,450
    • Issue date Oct 2, 2007
    • Maeda Metal Industries, Ltd.
    • Tatsuo Hirai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Torque measuring device
    • Patent number D551998
    • Issue date Oct 2, 2007
    • Maeda Metal Industries, Ltd.
    • Tatsuo Hirai
    • D10 - Measuring, testing, or signalling instruments

Patents Applicationslast 30 patents

  • Information Patent Application

    TIGHTENING DEVICE AND TIGHTENING METHOD
    • Publication number 20150122522
    • Publication date May 7, 2015
    • Fuji Jukogyo Kabushiki Kaisha
    • KATSUHIRO FUJIMOTO
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    TIGHTENING DEVICE
    • Publication number 20150114138
    • Publication date Apr 30, 2015
    • TONE CO., LTD.
    • KATSUHIRO FUJIMOTO
    • G01 - MEASURING TESTING
  • Information Patent Application

    WIRELESS DATA TRANSMITTING AND RECEIVING SYSTEM
    • Publication number 20100265097
    • Publication date Oct 21, 2010
    • TAKAYOSHI OBATAKE
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    BOLT OR NUT TIGHTENING DEVICE
    • Publication number 20100199816
    • Publication date Aug 12, 2010
    • Yasunobu Kaneyama
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    TIGHTENING TORQUE MEASURING UNIT
    • Publication number 20090308178
    • Publication date Dec 17, 2009
    • Toshihiko Kushida
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    BOLT OR NUT TIGHTENING DEVICE
    • Publication number 20080098863
    • Publication date May 1, 2008
    • MAEDA METAL INDUSTRIES, LTD.
    • YASUNOBU KANEYAMA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Tightening torque measuring unit and torque indicating tightening d...
    • Publication number 20060005637
    • Publication date Jan 12, 2006
    • MAEDA METAL INDUSTRIES, LTD.
    • Tatsuo Hirai
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS