TREA

Isao Oyama

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Waveguide-type coupler/splitter
    • Patent number 5,179,604
    • Issue date Jan 12, 1993
    • The Furukawa Electric Co., Ltd.
    • Hisaharu Yanagawa
    • G02 - OPTICS

Patents Applicationslast 30 patents