TREA

Sadaharu Oka

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical packet network system
    • Patent number 7,787,777
    • Issue date Aug 31, 2010
    • Yokogawa Electric Corporation
    • Shinji Iio
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Optical communication apparatus
    • Patent number 7,746,549
    • Issue date Jun 29, 2010
    • Yokogawa Electric Corporation
    • Naoaki Machida
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Integrated circuit
    • Patent number 7,732,807
    • Issue date Jun 8, 2010
    • Yokogawa Electric Corporation
    • Akira Miura
    • H01 - BASIC ELECTRIC ELEMENTS
  • 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

    Optical waveform shaping device including portions for respectively...
    • Patent number 7,620,284
    • Issue date Nov 17, 2009
    • Yokogawa Electric Corporation
    • Shinji Iio
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Optical switch
    • Patent number 7,362,929
    • Issue date Apr 22, 2008
    • Yokogawa Electric Corporation
    • Shinji Iio
    • G02 - OPTICS
  • Information Patent Grant

    Optical switch
    • Patent number 7,317,848
    • Issue date Jan 8, 2008
    • Yokogawa Electric Corporation
    • Shinji Iio
    • G02 - OPTICS
  • Information Patent Grant

    Electron beam generating apparatus and optical sampling apparatus u...
    • Patent number 7,307,432
    • Issue date Dec 11, 2007
    • Yokogawa Electric Corporation
    • Kentaro Tezuka
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Photoelectric conversion apparatus and photoelectric conversion sys...
    • Patent number 7,176,437
    • Issue date Feb 13, 2007
    • Yokogawa Electric Corporation
    • Morio Wada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Optical switch matrix
    • Patent number 7,116,856
    • Issue date Oct 3, 2006
    • Yokogawa Electric Corporation
    • Shinji Iio
    • G02 - OPTICS
  • Information Patent Grant

    Optical router
    • Patent number 7,113,665
    • Issue date Sep 26, 2006
    • Yokogawa Electric Corporation
    • Chie Sato
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Active diffraction grating
    • Patent number 7,035,490
    • Issue date Apr 25, 2006
    • Yokogawa Electric Corp.
    • Shun-ichi Miyazaki
    • G02 - OPTICS
  • 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
  • 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
  • Information Patent Grant

    Sampling head
    • Patent number 5,132,557
    • Issue date Jul 21, 1992
    • Yokogawa Electric Corporation
    • Satoru Uchida
    • G11 - INFORMATION STORAGE

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

    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

    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

    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

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

    Electron beam generating apparatus and optical sampling apparatus u...
    • Publication number 20050134297
    • Publication date Jun 23, 2005
    • Kentaro Tezuka
    • G01 - MEASURING TESTING
  • Information Patent Application

    Optical path control device
    • Publication number 20050129352
    • Publication date Jun 16, 2005
    • Yokogawa Electric Corporation
    • Shun-ichi Miyazaki
    • G02 - OPTICS
  • Information Patent Application

    Optical switch matrix
    • Publication number 20050041913
    • Publication date Feb 24, 2005
    • Yokogawa Electric Corporation
    • Shinji Iio
    • G02 - OPTICS
  • Information Patent Application

    Optical switch
    • Publication number 20050041903
    • Publication date Feb 24, 2005
    • Yokogawa Electric Corporation
    • Shinji Iio
    • G02 - OPTICS
  • 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

    Active diffraction grating
    • Publication number 20040213499
    • Publication date Oct 28, 2004
    • YOKOGAWA ELECTRIC CORPORATION
    • Shun-ichi Miyazaki
    • G02 - OPTICS
  • Information Patent Application

    Optical path control device
    • Publication number 20040208412
    • Publication date Oct 21, 2004
    • Yokogawa Electric Corporation
    • Shun-ichi Miyazaki
    • G02 - OPTICS
  • Information Patent Application

    Integrated circuit
    • Publication number 20040196674
    • Publication date Oct 7, 2004
    • YOKOGAWA ELECTRIC CORPORATION
    • Akira Miura
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

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

    Optical router
    • Publication number 20040184713
    • Publication date Sep 23, 2004
    • YOKOGAWA ELECTRIC CORPORATION
    • Chie Sato
    • 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
  • Information Patent Application

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