TREA

Kei Chiba

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  • Ichinoseki-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical switch
    • Patent number 6,961,485
    • Issue date Nov 1, 2005
    • NEC TOKIN Corporation
    • Michikazu Kondo
    • G02 - OPTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    Optical switch
    • Publication number 20040067010
    • Publication date Apr 8, 2004
    • NEC Tokin Corporation
    • Michikazu Kondo
    • G02 - OPTICS