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Junichiro Ichikawa

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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical element
    • Patent number 11,347,086
    • Issue date May 31, 2022
    • Sumitomo Osaka Cement Co., Ltd.
    • Katsutoshi Kondo
    • G02 - OPTICS
  • Information Patent Grant

    Optical modulator
    • Patent number 10,502,982
    • Issue date Dec 10, 2019
    • Sumitomo Osaka Cement Co., Ltd.
    • Kei Katou
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Optical modulator module
    • Patent number 10,502,988
    • Issue date Dec 10, 2019
    • Sumitomo Osaka Cement Co., Ltd.
    • Takatomo Itou
    • G02 - OPTICS
  • Information Patent Grant

    Optical carrier-suppressed signal generator
    • Patent number 10,498,457
    • Issue date Dec 3, 2019
    • Sumitomo Osaka Cement Co., Ltd.
    • Takeshi Sakai
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Optical waveguide device
    • Patent number 10,466,513
    • Issue date Nov 5, 2019
    • SUMITOMO OSAKA CEMENT CO., LTD.
    • Toshio Kataoka
    • G02 - OPTICS
  • Information Patent Grant

    Optical modulator and optical switch
    • Patent number 10,401,658
    • Issue date Sep 3, 2019
    • Sumitomo Osaka Cement Co., Ltd.
    • Toshio Kataoka
    • G02 - OPTICS
  • Information Patent Grant

    Optical modulator
    • Patent number 10,365,506
    • Issue date Jul 30, 2019
    • Sumitomo Osaka Cement Co., Ltd.
    • Kei Katou
    • G02 - OPTICS
  • Information Patent Grant

    Optical waveguide device
    • Patent number 10,365,534
    • Issue date Jul 30, 2019
    • SUMITMO OSAKA CEMENT CO., LTD.
    • Yuu Nakata
    • G02 - OPTICS
  • Information Patent Grant

    Optical modulator module
    • Patent number 10,338,414
    • Issue date Jul 2, 2019
    • Sumitomo Osaka Cement Co., Ltd.
    • Takeshi Sakai
    • G02 - OPTICS
  • Information Patent Grant

    Waveguide-type optical element
    • Patent number 10,088,734
    • Issue date Oct 2, 2018
    • Sumitomo Osaka Cement Co., Ltd.
    • Katsutoshi Kondou
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Optical modulator and optical switch
    • Patent number 10,067,403
    • Issue date Sep 4, 2018
    • Sumitomo Osaka Cement Co., Ltd.
    • Toshio Kataoka
    • G02 - OPTICS
  • Information Patent Grant

    Waveguide type optical element
    • Patent number 9,946,100
    • Issue date Apr 17, 2018
    • Sumitomo Osaka Cement Co., Ltd.
    • Teppei Yanagawa
    • G02 - OPTICS
  • Information Patent Grant

    Optical modulator
    • Patent number 9,746,741
    • Issue date Aug 29, 2017
    • Sumitomo Osaka Cement Co., Ltd.
    • Toshio Kataoka
    • G02 - OPTICS
  • Information Patent Grant

    Optical modulator
    • Patent number 9,599,843
    • Issue date Mar 21, 2017
    • Sumitomo Osaka Cement Co., Ltd.
    • Katsutoshi Kondou
    • G02 - OPTICS
  • Information Patent Grant

    Optical modulator
    • Patent number 9,551,887
    • Issue date Jan 24, 2017
    • Sumitomo Osaka Cement Co., Ltd.
    • Junichiro Ichikawa
    • G02 - OPTICS
  • Information Patent Grant

    Optical control device
    • Patent number 9,519,200
    • Issue date Dec 13, 2016
    • Sumitomo Osaka Cement Co., Ltd.
    • Toshio Kataoka
    • G02 - OPTICS
  • Information Patent Grant

    Optical waveguide element and method for manufacturing optical wave...
    • Patent number 9,348,156
    • Issue date May 24, 2016
    • Sumitomo Osaka Cement Co., Ltd.
    • Junichiro Ichikawa
    • G02 - OPTICS
  • Information Patent Grant

    Optical modulator
    • Patent number 9,235,066
    • Issue date Jan 12, 2016
    • Sumitomo Osaka Cement Co., Ltd.
    • Junichiro Ichikawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Light control element
    • Patent number 9,057,893
    • Issue date Jun 16, 2015
    • Sumitomo Osaka Cement Co., Ltd.
    • Masayuki Motoya
    • G02 - OPTICS
  • Information Patent Grant

    Optical waveguide device
    • Patent number 9,002,165
    • Issue date Apr 7, 2015
    • Sumitomo Osaka Cement Co., Ltd.
    • Masayuki Ichioka
    • G02 - OPTICS
  • Information Patent Grant

    Optical control element having a plurality of optical control portions
    • Patent number 8,983,239
    • Issue date Mar 17, 2015
    • Sumitomo Osaka Cement Co., Ltd.
    • Masayuki Ichioka
    • G02 - OPTICS
  • Information Patent Grant

    Method for evaluating characteristic of optical modulator having ma...
    • Patent number 8,867,042
    • Issue date Oct 21, 2014
    • National Institute of Information and Communications Technology
    • Tetsuya Kawanishi
    • G02 - OPTICS
  • Information Patent Grant

    Optical modulator
    • Patent number 8,755,641
    • Issue date Jun 17, 2014
    • Sumitomo Osaka Cement Co., Ltd.
    • Junichiro Ichikawa
    • G02 - OPTICS
  • Information Patent Grant

    Optical control element
    • Patent number 8,737,773
    • Issue date May 27, 2014
    • Sumitomo Osaka Cement Co., Ltd.
    • Masayuki Motoya
    • G02 - OPTICS
  • Information Patent Grant

    Method for forming polarization reversal
    • Patent number 8,669,121
    • Issue date Mar 11, 2014
    • Sumitomo Osaka Cement Co., Ltd.
    • Futoshi Yamamoto
    • G02 - OPTICS
  • Information Patent Grant

    Optical control device
    • Patent number 8,644,647
    • Issue date Feb 4, 2014
    • Sumitomo Osaka Cement Co., Ltd.
    • Junichiro Ichikawa
    • G02 - OPTICS
  • Information Patent Grant

    Optical control device
    • Patent number 8,600,197
    • Issue date Dec 3, 2013
    • Sumitomo Osaka Cement Co., Ltd.
    • Satoshi Oikawa
    • G02 - OPTICS
  • Information Patent Grant

    Light control device
    • Patent number 8,526,768
    • Issue date Sep 3, 2013
    • Sumitomo Osaka Cement Co., Ltd.
    • Yuhki Kinpara
    • G02 - OPTICS
  • Information Patent Grant

    Method for forming polarization reversal
    • Patent number 8,524,509
    • Issue date Sep 3, 2013
    • Sumitomo Osaka Cement Co., Ltd.
    • Futoshi Yamamoto
    • G02 - OPTICS
  • Information Patent Grant

    Optical waveguide device
    • Patent number 8,396,334
    • Issue date Mar 12, 2013
    • Sumitomo Osaka Cement Co., Ltd.
    • Junichiro Ichikawa
    • G02 - OPTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    Optical Waveguide Device, and Optical Modulation Device and Optical...
    • Publication number 20240329436
    • Publication date Oct 3, 2024
    • Sumitomo Osaka Cement Co., Ltd.
    • Katsutoshi KONDO
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL WAVEGUIDE ELEMENT, OPTICAL WAVEGUIDE DEVICE, AND OPTICAL TR...
    • Publication number 20230400718
    • Publication date Dec 14, 2023
    • Sumitomo Osaka Cement Co., Ltd.
    • Shingo Takano
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL ELEMENT
    • Publication number 20210026165
    • Publication date Jan 28, 2021
    • Sumitomo Osaka Cement Co.,Ltd.
    • Katsutoshi KONDO
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL MODULATOR
    • Publication number 20190258089
    • Publication date Aug 22, 2019
    • Sumitomo Osaka Cement Co., Ltd.
    • Kei KATOU
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    OPTICAL MODULATOR MODULE
    • Publication number 20190113779
    • Publication date Apr 18, 2019
    • SUMITOMO OSAKA CEMENT CO., LTD.
    • Takatomo ITOU
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL MODULATOR
    • Publication number 20190025612
    • Publication date Jan 24, 2019
    • Sumitomo Osaka Cement Co., Ltd.
    • Kei KATOU
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL WAVEGUIDE DEVICE
    • Publication number 20190025616
    • Publication date Jan 24, 2019
    • Sumitomo Osaka Cement Co., Ltd.
    • Toshio KATAOKA
    • G02 - OPTICS
  • Information Patent Application

    WAVEGUIDE-TYPE OPTICAL ELEMENT
    • Publication number 20180120666
    • Publication date May 3, 2018
    • Sumitomo Osaka Cement Co., Ltd.
    • Katsutoshi Kondou
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL MODULATOR MODULE
    • Publication number 20180095301
    • Publication date Apr 5, 2018
    • Sumitomo Osaka Cement Co., Ltd.
    • Takeshi SAKAI
    • G02 - OPTICS
  • Information Patent Application

    WAVEGUIDE TYPE OPTICAL ELEMENT
    • Publication number 20180011348
    • Publication date Jan 11, 2018
    • Sumitomo Osaka Cement Co., Ltd.
    • Teppei YANAGAWA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL MODULATOR AND OPTICAL SWITCH
    • Publication number 20170255032
    • Publication date Sep 7, 2017
    • Sumitomo Osaka Cement Co., Ltd.
    • Toshio KATAOKA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL MODULATOR AND OPTICAL SWITCH
    • Publication number 20170235207
    • Publication date Aug 17, 2017
    • Sumitomo Osaka Cement Co., Ltd.
    • Toshio KATAOKA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL WAVEGUIDE DEVICE
    • Publication number 20170075188
    • Publication date Mar 16, 2017
    • Sumitomo Osaka Cement Co., Ltd.
    • Yuu NAKATA
    • G02 - OPTICS
  • Information Patent Application

    ELECTRODE-PLACED SUBSTRATE
    • Publication number 20160313503
    • Publication date Oct 27, 2016
    • Sumitomo Osaka Cement Co., Ltd.
    • Motohiro Takemura
    • G02 - OPTICS
  • Information Patent Application

    ELECTRO-OPTIC ELEMENT
    • Publication number 20160313579
    • Publication date Oct 27, 2016
    • Sumitomo Osaka Cement Co., Ltd.
    • Shiyoshi YOKOYAMA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL CONTROL ELEMENT
    • Publication number 20160223844
    • Publication date Aug 4, 2016
    • Sumitomo Osaka Cement Co., Ltd.
    • Junichiro Ichikawa
    • G02 - OPTICS
  • Information Patent Application

    Optical Modulator
    • Publication number 20160062155
    • Publication date Mar 3, 2016
    • Sumitomo Osaka Cement Co., Ltd.
    • Junichiro Ichikawa
    • G02 - OPTICS
  • Information Patent Application

    Optical Control Device
    • Publication number 20160054637
    • Publication date Feb 25, 2016
    • SUMITOMO OSAKA CEMENT CO.,LTD.)
    • Toshio Kataoka
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL MODULATOR
    • Publication number 20160033848
    • Publication date Feb 4, 2016
    • Sumitomo Osaka Cement Co.
    • Toshio Kataoka
    • G02 - OPTICS
  • Information Patent Application

    Optical Waveguide Element and Method for Manufacturing Optical Wave...
    • Publication number 20160004105
    • Publication date Jan 7, 2016
    • SUMITOMO OSAKA CEMENT CO., LTD.
    • Junichiro ICHIKAWA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL MODULATOR
    • Publication number 20150370095
    • Publication date Dec 24, 2015
    • SUMITOMO OSAKA CEMENT CO., LTD.
    • Katsutoshi KONDOU
    • G02 - OPTICS
  • Information Patent Application

    CARRIER-SUPPRESSED LIGHT-GENERATING DEVICE
    • Publication number 20150093120
    • Publication date Apr 2, 2015
    • SUMITOMO OSAKA CEMENT CO., LTD.
    • Takeshi Sakai
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    OPTICAL MODULATOR
    • Publication number 20140086524
    • Publication date Mar 27, 2014
    • Sumitomo Osaka Cement Co., Ltd.
    • JUNICHIRO ICHIKAWA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL WAVEGUIDE DEVICE
    • Publication number 20140050440
    • Publication date Feb 20, 2014
    • SUMITOMO OSAKA CEMENT CO., LTD.
    • Masayuki Ichioka
    • G02 - OPTICS
  • Information Patent Application

    LIGHT CONTROL ELEMENT
    • Publication number 20130071059
    • Publication date Mar 21, 2013
    • SUMITOMO OSAKA CEMENT CO., LTD.
    • Masayuki MOTOYA
    • G02 - OPTICS
  • Information Patent Application

    Optical Control Element
    • Publication number 20120230627
    • Publication date Sep 13, 2012
    • Sumitomo Osaka Cement Co., Ltd.
    • Masayuki MOTOYA
    • G02 - OPTICS
  • Information Patent Application

    Optical Modulator
    • Publication number 20120230625
    • Publication date Sep 13, 2012
    • Sumitomo Osaka Cement Co., Ltd.
    • Junichiro ICHIKAWA
    • G02 - OPTICS
  • Information Patent Application

    METHOD FOR EVALUATING CHARACTERISTIC OF OPTICAL MODULATOR HAVING MA...
    • Publication number 20120162656
    • Publication date Jun 28, 2012
    • Tetsuya Kawanishi
    • G02 - OPTICS
  • Information Patent Application

    Optical control element
    • Publication number 20120087616
    • Publication date Apr 12, 2012
    • Sumitomo Osaka Cement Co.
    • Masayuki Ichioka
    • G02 - OPTICS
  • Information Patent Application

    Optical waveguide device
    • Publication number 20120020607
    • Publication date Jan 26, 2012
    • Sumitomo Osaka Cement Co., Ltd.
    • Junichiro Ichikawa
    • G02 - OPTICS