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Jo ji Yamaguchi

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  • Atsugi-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical signal processing device
    • Patent number 9,645,321
    • Issue date May 9, 2017
    • Nippon Telegraph and Telephone Corporation
    • Yuichi Higuchi
    • G02 - OPTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    OPTICAL SIGNAL PROCESSING DEVICE
    • Publication number 20150268421
    • Publication date Sep 24, 2015
    • Nippon Telegraph and Telephone Corporation
    • Yuichi Higuchi
    • G02 - OPTICS