TREA

Takayuki Kakinuma

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical switch unit
    • Patent number 6,493,481
    • Issue date Dec 10, 2002
    • Oki Electric Industry Co., Ltd.
    • Hideaki Okayama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Optical switch unit
    • Publication number 20010024541
    • Publication date Sep 27, 2001
    • Hideaki Okayama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE