TREA

Yasukazu Akasaka

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Patents Grantslast 30 patents

  • Information Patent Grant

    Clock recovery apparatus
    • Patent number 7,965,800
    • Issue date Jun 21, 2011
    • Yokogawa Electric Corporation
    • Hiroshi Sugawara
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Light modulating apparatus
    • Patent number 7,672,033
    • Issue date Mar 2, 2010
    • Yokogawa Electric Corporation
    • Toshiaki Kobayashi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Repeater and optical communication system
    • Patent number 7,580,641
    • Issue date Aug 25, 2009
    • Yokogawa Electric Corporation
    • Hiroshi Shimizu
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Pulse pattern generating apparatus
    • Patent number 7,522,660
    • Issue date Apr 21, 2009
    • Yokogawa Electric Corporation
    • Chie Sato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Optical packet communication device with an applied negative voltag...
    • Patent number 7,435,938
    • Issue date Oct 14, 2008
    • Yokogawa Electric Corporation
    • Daisuke Hayashi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Optical switch
    • Patent number 6,891,986
    • Issue date May 10, 2005
    • Yokogawa Electric Corp.
    • Shinji Iio
    • G02 - OPTICS
  • Information Patent Grant

    Photo diode array
    • Patent number 6,552,325
    • Issue date Apr 22, 2003
    • Yokogawa Electric Corporation
    • Makoto Komiyama
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    OPTICAL TRANSMISSION APPARATUS
    • Publication number 20100129088
    • Publication date May 27, 2010
    • Yokogawa Electric Corporation
    • Yasukazu AKASAKA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    A/D CONVERTER
    • Publication number 20100060502
    • Publication date Mar 11, 2010
    • YOKOGAWA ELECTRIC CORPORATION
    • Akira Toyama
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    CLOCK RECOVERY APPARATUS
    • Publication number 20080205564
    • Publication date Aug 28, 2008
    • YOKOGAWA ELECTRIC CORPORATION
    • Hiroshi SUGAWARA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Light modulating apparatus
    • Publication number 20070177252
    • Publication date Aug 2, 2007
    • YOKOGAWA ELECTRIC CORPORATION
    • Toshiaki Kobayashi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Optical communication device
    • Publication number 20070164198
    • Publication date Jul 19, 2007
    • Yokogawa Electric Corporation
    • Daisuke Hayashi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Repeater and optical communication system
    • Publication number 20070047956
    • Publication date Mar 1, 2007
    • YOKOGAWA ELECTRIC CORPORATION
    • Hiroshi Shimizu
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Pulse pattern generating apparatus
    • Publication number 20050058190
    • Publication date Mar 17, 2005
    • Yokogawa Electric Corporation
    • Chie Sato
    • G01 - MEASURING TESTING
  • Information Patent Application

    Optical switch
    • Publication number 20040184712
    • Publication date Sep 23, 2004
    • YOKOGAWA ELECTRIC CORPORATION
    • Shinji Iio
    • G02 - OPTICS
  • Information Patent Application

    PHOTO DIODE ARRAY
    • Publication number 20030085341
    • Publication date May 8, 2003
    • Makoto Komiyama
    • H01 - BASIC ELECTRIC ELEMENTS