TREA

Yujiro TATSUMI

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fillet welding method and fillet welded joint
    • Patent number 11,065,705
    • Issue date Jul 20, 2021
    • Nippon Steel Corporation
    • Yujiro Tatsumi
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Fillet arc welded joint and method for producing same
    • Patent number 10,786,873
    • Issue date Sep 29, 2020
    • Nippon Steel Corporation
    • Shinji Kodama
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Control arm
    • Patent number 10,744,832
    • Issue date Aug 18, 2020
    • Nippon Steel Corporation
    • Yujiro Tatsumi
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Production method for welded structure
    • Patent number 10,427,245
    • Issue date Oct 1, 2019
    • Nippon Steel Corporation
    • Yujiro Tatsumi
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents