TREA

Katsumi Haga

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary cutting tool
    • Patent number 5,090,849
    • Issue date Feb 25, 1992
    • Mitsubishi Materials Corporation
    • Tatsuo Arai
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Clamped cutting tool
    • Patent number 5,004,378
    • Issue date Apr 2, 1991
    • Mitsubishi Metal Corporation
    • Tatsuo Arai
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR