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Hiroyuki Hanazawa

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  • Kawasaki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical add/drop multiplexer
    • Patent number 8,098,988
    • Issue date Jan 17, 2012
    • Fujitsu Limited
    • Hiroaki Nakazato
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    ATM exchange
    • Patent number 6,009,080
    • Issue date Dec 28, 1999
    • Fujitsu Limited
    • Hiroyuki Hanazawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Optical add/drop multiplexer
    • Publication number 20090297149
    • Publication date Dec 3, 2009
    • FUJITSU LIMITED
    • Hiroaki Nakazato
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE