TREA

Hirohisa Fujiyama

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  • Sagamihara, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of automatically welding rails
    • Patent number 5,175,405
    • Issue date Dec 29, 1992
    • Nippon Steel Corporation
    • Kenichi Karimine
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Process for automatic fusion welding of rails
    • Patent number 4,841,116
    • Issue date Jun 20, 1989
    • Nippon Steel Corporation
    • Akira Kimura
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR