TREA

Yoshizo Sawada

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ferromagnetic amorphous alloy
    • Patent number RE33022
    • Issue date Aug 15, 1989
    • Hitachi, Ltd.
    • Shinji Takayama
    • 148 - Metal treatment
  • Information Patent Grant

    Amorphous alloys
    • Patent number 4,668,310
    • Issue date May 26, 1987
    • Hitachi Metals, Ltd.
    • Mitsuhiro Kudo
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Magnetic head alloy material and method of producing the same
    • Patent number 4,581,080
    • Issue date Apr 8, 1986
    • Hitachi Metals, Ltd.
    • Takashi Meguro
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method of heat-treating amorphous material
    • Patent number 4,525,222
    • Issue date Jun 25, 1985
    • Hitachi Metals, Ltd.
    • Takashi Meguro
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Ferromagnetic amorphous alloy
    • Patent number 4,306,908
    • Issue date Dec 22, 1981
    • Hitachi, Ltd.
    • Shinji Takayama
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...