TREA

Hiroaki Sanjoh

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Amplifier
    • Patent number 10,804,857
    • Issue date Oct 13, 2020
    • Nippon Telegraph and Telephone Corporation
    • Masafumi Nogawa
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Wavelength division multiplexing optical transmission system and tr...
    • Patent number 7,113,702
    • Issue date Sep 26, 2006
    • Nippon Telegraph and Telephone Corporation
    • Eiichi Yamada
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    AMPLIFIER
    • Publication number 20190393841
    • Publication date Dec 26, 2019
    • Nippon Telegraph and Telephone Corporation
    • Masafumi Nogawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Wavelength division multiplexing optical transmission system and tr...
    • Publication number 20030030865
    • Publication date Feb 13, 2003
    • Nippon Telegraph and Telephone Corporation
    • Eiichi Yamada
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE