TREA

Yosuke Yamazaki

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Single-mode optical fiber
    • Patent number 5,946,439
    • Issue date Aug 31, 1999
    • Sumitomo Electric Industries, Ltd.
    • Yoshiaki Terasawa
    • G02 - OPTICS
  • Information Patent Grant

    Single-mode optical fiber
    • Patent number 5,913,005
    • Issue date Jun 15, 1999
    • Sumitomo Electric Industries, Ltd.
    • Yoshiaki Terasawa
    • G02 - OPTICS