TREA

Hisashi Irokawa

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  • Hitachinaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Engine
    • Patent number D849795
    • Issue date May 28, 2019
    • Hitachi Koki Co., Ltd.
    • Takeshi Taniguchi
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Portable electric power sander
    • Patent number D831458
    • Issue date Oct 23, 2018
    • Hitachi Koki Co., Ltd.
    • Takafumi Itoh
    • D08 - Tools and hardware