TREA

Sakio Abukawa

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  • Oodate, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Joint for corrugated structural members
    • Patent number 5,385,423
    • Issue date Jan 31, 1995
    • Toko Tekko Kabushiki Kaisha
    • Sakio Abukawa
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Arched building structure
    • Patent number 5,233,799
    • Issue date Aug 10, 1993
    • Toko Tekko Kabushiki Kaisha
    • Sakio Abukawa
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...