TREA

Norifumi Abiru

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  • Owariasahi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Spring forming apparatus
    • Patent number 6,062,054
    • Issue date May 16, 2000
    • Asahi-Seiki Manufacturing Co., Ltd.
    • Norifumi Abiru
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Apparatus for forming coil springs
    • Patent number 4,893,491
    • Issue date Jan 16, 1990
    • Asahi-Seiki Manufacturing Co., Ltd.
    • Yozo Ohdai
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of and an apparatus for forming tension springs with German...
    • Patent number 4,680,950
    • Issue date Jul 21, 1987
    • Asahi-Seiki Manufacturing Co., Ltd.
    • Yozo Ohdai
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...