TREA

Nobuaki Tajimi

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical access network system
    • Patent number 7,457,542
    • Issue date Nov 25, 2008
    • Hitachi Communication Technologies, Ltd.
    • Kenro Sekine
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Optical transmission system
    • Publication number 20070172239
    • Publication date Jul 26, 2007
    • Tomotaka Yamazaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Optical access network system
    • Publication number 20060280502
    • Publication date Dec 14, 2006
    • Hitachi Communication Technologies, Ltd.
    • Kenro Sekine
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE