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Kazumi Arakawa

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Patents Grantslast 30 patents

  • Information Patent Grant

    Casting nozzle
    • Patent number 4,857,488
    • Issue date Aug 15, 1989
    • Toshiba Ceramics Co., Ltd.
    • Yoshiro Aiba
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Refractory for continuous casting
    • Patent number 4,640,336
    • Issue date Feb 3, 1987
    • Toshiba Ceramics Co., Ltd.
    • Kazumi Arakawa
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Molten metal discharging device
    • Patent number 4,632,283
    • Issue date Dec 30, 1986
    • Toshiba Ceramics Co., Ltd.
    • Kazumi Arakawa
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Molten metal discharging device
    • Patent number 4,583,721
    • Issue date Apr 22, 1986
    • Toshiba Ceramics Co., Ltd.
    • Kazumi Arakawa
    • B22 - CASTING POWDER METALLURGY