TREA

Akihiko Ohta

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  • Ibaragi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Welding material and a method of producing welded joint
    • Patent number 7,325,717
    • Issue date Feb 5, 2008
    • National Institute for Materials Science
    • Yasushi Morikage
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Welding material
    • Patent number 6,290,905
    • Issue date Sep 18, 2001
    • Kawasaki Steel Corporation
    • Osamu Watanabe
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Welding method and welding material
    • Patent number 6,059,177
    • Issue date May 9, 2000
    • Kawasaki Steel Corporation
    • Osamu Watanabe
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents