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Yoneo Hiwasa

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  • Anpachi-gun, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Excavation tool
    • Patent number 9,551,190
    • Issue date Jan 24, 2017
    • Mitsubishi Materials Corporation
    • Yoneo Hiwasa
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Digging tool, digging bit, and device
    • Patent number 8,550,191
    • Issue date Oct 8, 2013
    • Mitsubishi Materials Corporation
    • Yoneo Hiwasa
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Hollow drilling steel rod and method of manufacturing the same
    • Patent number 8,430,977
    • Issue date Apr 30, 2013
    • Mitsubishi Materials Corporation
    • Masaya Hisada
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Excavation tool
    • Patent number 5,139,099
    • Issue date Aug 18, 1992
    • Mitsubishi Materials Corporation
    • Takeshi Hayashi
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Excavation tool
    • Patent number 5,113,954
    • Issue date May 19, 1992
    • Mitsubishi Materials Corporation
    • Takeshi Hayashi
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents