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  • Yokohama-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical fiber
    • Patent number 11,022,749
    • Issue date Jun 1, 2021
    • Sumitomo Electric Industries, Ltd.
    • Hiroki Ishikawa
    • G02 - OPTICS
  • Information Patent Grant

    Optical fiber
    • Patent number 10,908,354
    • Issue date Feb 2, 2021
    • Sumitomo Electric Industries, Ltd.
    • Keisei Morita
    • G02 - OPTICS
  • Information Patent Grant

    Multimode optical fiber
    • Patent number 9,575,247
    • Issue date Feb 21, 2017
    • Sumitomo Electric Industries, Ltd.
    • Kazuhiro Yonezawa
    • G02 - OPTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20200278492
    • Publication date Sep 3, 2020
    • Sumitomo Electric Industries, Ltd.
    • Keisei MORITA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20200278493
    • Publication date Sep 3, 2020
    • Sumitomo Electric Industries, Ltd.
    • Hiroki ISHIKAWA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER CABLE
    • Publication number 20200225432
    • Publication date Jul 16, 2020
    • Sumitomo Electric Industries, Ltd.
    • Hiroki ISHIKAWA
    • G02 - OPTICS
  • Information Patent Application

    MULTIMODE OPTICAL FIBER
    • Publication number 20160216439
    • Publication date Jul 28, 2016
    • Sumitomo Electric Industries, Ltd.
    • Kazuhiro YONEZAWA
    • G02 - OPTICS
  • Information Patent Application

    MULTI MODE OPTICAL FIBER
    • Publication number 20150226916
    • Publication date Aug 13, 2015
    • Sumitomo Electric Industries, Ltd.
    • Itaru SAKABE
    • G02 - OPTICS