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Nobuhisa Sugawara

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  • Hitachinaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Impact driver
    • Patent number D499945
    • Issue date Dec 21, 2004
    • Hitachi Koki Co., Ltd.
    • Nobuhisa Sugawara
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable electric driver drill
    • Patent number D496843
    • Issue date Oct 5, 2004
    • Hitachi Koki Co., Ltd.
    • Nobuhisa Sugawara
    • D08 - Tools and hardware