TREA

Naoki Matsunaga

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  • Milan, IT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Portable electric hammer drill
    • Patent number D380132
    • Issue date Jun 24, 1997
    • Hitachi Koki Company Limited
    • Naoki Matsunaga
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable elecrtric hammer drill
    • Patent number D349029
    • Issue date Jul 26, 1994
    • Hitachi Koki Company Limited
    • Naoki Matsunaga
    • D08 - Tools and hardware