TREA

Yutaka Sekido

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  • Nagoya, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Bending method for pipe material
    • Patent number 6,347,539
    • Issue date Feb 19, 2002
    • Sango Co. Ltd.
    • Yutaka Sekido
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of manufacturing pipe
    • Patent number 6,012,315
    • Issue date Jan 11, 2000
    • Sango Co. Ltd.
    • Yutaka Sekido
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...