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Jun Kawaguchi

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  • Narashino-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    High strength steel wire for spring
    • Patent number 8,734,600
    • Issue date May 27, 2014
    • Nippon Steel & Sumitomo Metal Corporation
    • Masayuki Hashimura
    • C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents