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Katsuya Ikezawa

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  • Osaka, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • 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

    Flyback boost circuit and strobe device using the same
    • Publication number 20100061125
    • Publication date Mar 11, 2010
    • SONY CORPORATION
    • Katsuya Ikezawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    OPTICAL AMPLIFICATION APPARATUS AND OPTICAL COMMUNICATION APPARATUS
    • Publication number 20090067037
    • Publication date Mar 12, 2009
    • YOKOGAWA ELECTRIC CORPORATION
    • Daisuke HAYASHI
    • 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

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

    Optical communication apparatus
    • Publication number 20070127112
    • Publication date Jun 7, 2007
    • YOKOGAWA ELECTRIC CORPORATION
    • Naoaki Machida
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Light modulation apparatus and light modulator control method
    • Publication number 20070070488
    • Publication date Mar 29, 2007
    • YOKOGAWA ELECTRIC CORPORATION
    • Akira Miura
    • G02 - OPTICS
  • Information Patent Application

    Multiphased triangular wave oscillating circuit and switching regul...
    • Publication number 20070052459
    • Publication date Mar 8, 2007
    • Katsuya Ikezawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • 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

    Optical packet network system
    • Publication number 20070047957
    • Publication date Mar 1, 2007
    • Yokogawa Electric Corporation
    • Shinji Iio
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Optical and element
    • Publication number 20070019695
    • Publication date Jan 25, 2007
    • YOKOGAWA ELECTRIC CORPORATION
    • Shinji Iio
    • G02 - OPTICS
  • Information Patent Application

    Optical waveform shaping device including portions for respectively...
    • Publication number 20070003202
    • Publication date Jan 4, 2007
    • YOKOGAWA ELECTRIC CORPORATION
    • Shinji Iio
    • G02 - OPTICS
  • Information Patent Application

    Optical switch
    • Publication number 20060165348
    • Publication date Jul 27, 2006
    • YOKOGAWA ELECTRIC CORPORATION
    • Shinji Iio
    • G02 - OPTICS
  • Information Patent Application

    Optical switch
    • Publication number 20060078250
    • Publication date Apr 13, 2006
    • YOKOGAWA ELECTRIC CORPORATION
    • Masayuki Suehiro
    • G02 - OPTICS
  • Information Patent Application

    Microreactor
    • Publication number 20060034736
    • Publication date Feb 16, 2006
    • YOKOGAWA ELECTRIC CORPORATION
    • Akira Miura
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Inspection apparatus
    • Publication number 20060025708
    • Publication date Feb 2, 2006
    • YOKOGAWA ELECTRIC CORPORATION
    • Chie Sato
    • G01 - MEASURING TESTING
  • Information Patent Application

    Variable light signal delay apparatus, and variable light signal de...
    • Publication number 20060011819
    • Publication date Jan 19, 2006
    • YOKOGAWA ELECTRIC CORPORATION
    • Morio Wada
    • G02 - OPTICS
  • Information Patent Application

    Switching power supply device
    • Publication number 20050236904
    • Publication date Oct 27, 2005
    • Katsuya Ikezawa
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Application

    DC-DC converter
    • Publication number 20050206354
    • Publication date Sep 22, 2005
    • Katsuya Ikezawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Optical logic device
    • Publication number 20050194519
    • Publication date Sep 8, 2005
    • Morio Wada
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Photoelectric conversion apparatus and photoelectric conversion sys...
    • Publication number 20050194518
    • Publication date Sep 8, 2005
    • Morio Wada
    • G01 - MEASURING TESTING
  • Information Patent Application

    DC-DC converter
    • Publication number 20050156658
    • Publication date Jul 21, 2005
    • Katsuya Ikezawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Inductive load driving circuit
    • Publication number 20020109477
    • Publication date Aug 15, 2002
    • Katsuya Ikezawa
    • H03 - BASIC ELECTRONIC CIRCUITRY