TREA

Hirotoshi Kodaka

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical transmission apparatus
    • Patent number 8,320,772
    • Issue date Nov 27, 2012
    • Fujitsu Limited
    • Hiroki Ooi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • 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

    Optical transmission apparatus
    • Patent number 7,925,171
    • Issue date Apr 12, 2011
    • Fujitsu Limited
    • Hiroki Ooi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Clock reproducing apparatus
    • Patent number 7,667,544
    • Issue date Feb 23, 2010
    • Yokogawa Electric Corporation
    • Hiroshi Sugawara
    • 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

    Inspection apparatus
    • Patent number 7,243,033
    • Issue date Jul 10, 2007
    • Yokogawa Electric Corporation
    • Chie Sato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Optical signal processing system
    • Patent number 6,930,623
    • Issue date Aug 16, 2005
    • Yokogawa Electric Corporation
    • Shinji Iio
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    OPTICAL TRANSMISSION APPARATUS
    • Publication number 20110176816
    • Publication date Jul 21, 2011
    • FUJITSU LIMITED
    • Hiroki Ooi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    CLOCK REPRODUCING APPARATUS
    • Publication number 20100066456
    • Publication date Mar 18, 2010
    • YOKOGAWA ELECTRIC CORPORATION
    • Hiroshi SUGAWARA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    HIGH-FREQUENCY MODULE FOR PERFORMING EFFECTIVE PHASE COMPENSATION O...
    • Publication number 20090091480
    • Publication date Apr 9, 2009
    • YOKOGAWA ELECTRIC CORPORATION
    • Toshihiko Kyakuno
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LIGHT MODULATING APPARATUS
    • Publication number 20080226295
    • Publication date Sep 18, 2008
    • YOKOGAWA ELECTRIC CORPORATION
    • Akira MIURA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • 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

    Phase control circuit
    • Publication number 20080001641
    • Publication date Jan 3, 2008
    • YOKOGAWA ELECTRIC CORPORATION
    • Kenji Uchida
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Optical transmission apparatus
    • Publication number 20070212079
    • Publication date Sep 13, 2007
    • FUJITSU LIMITED
    • Hiroki Ooi
    • 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

    Clock reproducing apparatus
    • Publication number 20070159938
    • Publication date Jul 12, 2007
    • Yokogawa Electric Corporation
    • Hiroshi Sugawara
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • 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

    Inspection apparatus
    • Publication number 20060025708
    • Publication date Feb 2, 2006
    • YOKOGAWA ELECTRIC CORPORATION
    • Chie Sato
    • G01 - MEASURING TESTING
  • 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 signal processing apparatus
    • Publication number 20040213584
    • Publication date Oct 28, 2004
    • YOKOGAWA ELECTRIC CORPORATION
    • Shun-ichi Miyazaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Optical signal processing system
    • Publication number 20040178935
    • Publication date Sep 16, 2004
    • YOKOGAWA ELECTRIC CORPORATION
    • Shinji Iio
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE