TREA

Haruo Kubo

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method and tool for forming a tapered hole in a cylindrical work by...
    • Patent number 5,816,093
    • Issue date Oct 6, 1998
    • Nitto Kohki Co., Ltd.
    • Hirosato Takeuchi
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Fluid pipe coupling
    • Patent number 4,988,129
    • Issue date Jan 29, 1991
    • Nitto Kohki Co., Ltd.
    • Noboru Saito
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Forging method for a hollow article
    • Patent number 4,918,969
    • Issue date Apr 24, 1990
    • Nitto Kohki Co., Ltd.
    • Hirosato Takeuchi
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...