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Yoshiaki TAMURA

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  • Yokohama-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical fiber
    • Patent number 12,216,309
    • Issue date Feb 4, 2025
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka Sakuma
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Optical fiber
    • Patent number 12,030,804
    • Issue date Jul 9, 2024
    • Sumitomo Electric Industries, Ltd.
    • Yoshiaki Tamura
    • G02 - OPTICS
  • Information Patent Grant

    Optical fiber
    • Patent number 11,740,404
    • Issue date Aug 29, 2023
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka Sakuma
    • G02 - OPTICS
  • Information Patent Grant

    Optical fiber
    • Patent number 11,714,226
    • Issue date Aug 1, 2023
    • Sumitomo Electric Industries, Ltd.
    • Yoshiaki Tamura
    • G02 - OPTICS
  • Information Patent Grant

    Image forming apparatus including a contact member for operating an...
    • Patent number 11,677,885
    • Issue date Jun 13, 2023
    • Kyocera Document Solutions Inc.
    • Yoshiaki Tamura
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Optical fiber line, module, and method for manufacturing optical fi...
    • Patent number 11,493,690
    • Issue date Nov 8, 2022
    • Sumitomo Electric Industries, Ltd.
    • Masato Suzuki
    • G02 - OPTICS
  • Information Patent Grant

    Method of manufacturing optical fiber preform and optical fiber pre...
    • Patent number 11,345,627
    • Issue date May 31, 2022
    • Sumitomo Electric Industries, Ltd.
    • Tetsuya Haruna
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Optical amplifier and multi-core optical fiber
    • Patent number 11,316,316
    • Issue date Apr 26, 2022
    • Sumitomo Electric Industries, Ltd.
    • Takemi Hasegawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Optical fiber, colored optical fiber, and optical transmission system
    • Patent number 11,280,958
    • Issue date Mar 22, 2022
    • Sumitomo Electric Industries, Ltd.
    • Yuki Kawaguchi
    • G02 - OPTICS
  • Information Patent Grant

    Optical fiber
    • Patent number 11,181,684
    • Issue date Nov 23, 2021
    • Sumitomo Electric Industries, Ltd.
    • Yoshiaki Tamura
    • G02 - OPTICS
  • Information Patent Grant

    Optical fiber, colored optical fiber, and optical transmission system
    • Patent number 11,169,322
    • Issue date Nov 9, 2021
    • Sumitomo Electric Industries, Ltd.
    • Yuki Kawaguchi
    • G02 - OPTICS
  • Information Patent Grant

    Image forming apparatus
    • Patent number 11,067,937
    • Issue date Jul 20, 2021
    • Kyocera Document Solutions Inc.
    • Yoshiaki Tamura
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Optical fiber
    • Patent number 11,048,040
    • Issue date Jun 29, 2021
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka Sakuma
    • G02 - OPTICS
  • Information Patent Grant

    Optical fiber, coated optical fiber, and optical transmission system
    • Patent number 10,989,864
    • Issue date Apr 27, 2021
    • Sumitomo Electric Industries, Ltd.
    • Yuki Kawaguchi
    • G02 - OPTICS
  • Information Patent Grant

    Optical fiber line and optical fiber line manufacturing method
    • Patent number 10,775,555
    • Issue date Sep 15, 2020
    • Sumitomo Electric Industries, Ltd.
    • Masato Suzuki
    • G02 - OPTICS
  • Information Patent Grant

    Optical fiber preform
    • Patent number 10,723,650
    • Issue date Jul 28, 2020
    • Sumitomo Electric Industries, Ltd.
    • Keisei Morita
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Optical fiber
    • Patent number 10,656,326
    • Issue date May 19, 2020
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka Sakuma
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Optical fiber
    • Patent number 10,656,329
    • Issue date May 19, 2020
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka Sakuma
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Coupled multicore optical fiber and optical transmission system inc...
    • Patent number 10,585,234
    • Issue date Mar 10, 2020
    • Sumitomo Electric Industries, Ltd.
    • Takemi Hasegawa
    • G02 - OPTICS
  • Information Patent Grant

    Optical fiber
    • Patent number 10,550,030
    • Issue date Feb 4, 2020
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka Sakuma
    • G02 - OPTICS
  • Information Patent Grant

    Optical fiber and light source device
    • Patent number 10,451,787
    • Issue date Oct 22, 2019
    • Sumitomo Electric Industries, Ltd.
    • Yoshinori Yamamoto
    • G02 - OPTICS
  • Information Patent Grant

    Optical fiber preform
    • Patent number 10,155,687
    • Issue date Dec 18, 2018
    • Sumitomo Electric Industries, Ltd.
    • Yoshiaki Tamura
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Optical fiber
    • Patent number 10,031,282
    • Issue date Jul 24, 2018
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka Sakuma
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Multicore optical fiber
    • Patent number 10,031,285
    • Issue date Jul 24, 2018
    • Sumitomo Electric Industries, Ltd.
    • Tetsuya Nakanishi
    • G02 - OPTICS
  • Information Patent Grant

    Method of making an optical fiber containing an alkali metal in the...
    • Patent number 9,932,265
    • Issue date Apr 3, 2018
    • Sumitomo Electric Industries, Ltd.
    • Tetsuya Haruna
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Optical fiber
    • Patent number 9,910,216
    • Issue date Mar 6, 2018
    • Sumitomo Electric Industries, Ltd.
    • Tetsuya Haruna
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Optical fiber
    • Patent number 9,817,184
    • Issue date Nov 14, 2017
    • Sumitomo Electric Industries, Ltd.
    • Yoshiaki Tamura
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Optical fiber
    • Patent number 9,588,286
    • Issue date Mar 7, 2017
    • Sumitomo Electric Industries, Ltd
    • Tetsuya Haruna
    • G02 - OPTICS
  • Information Patent Grant

    Optical fiber
    • Patent number 9,575,245
    • Issue date Feb 21, 2017
    • Sumitomo Electric Industries, Ltd.
    • Yoshiaki Tamura
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Optical fiber manufacturing method and optical fiber
    • Patent number 9,527,765
    • Issue date Dec 27, 2016
    • Sumitomo Electric Industries, Ltd.
    • Tetsuya Haruna
    • C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20230266523
    • Publication date Aug 24, 2023
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka SAKUMA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    Image forming apparatus
    • Publication number 20220256050
    • Publication date Aug 11, 2022
    • KYOCERA DOCUMENT SOLUTIONS INC.
    • Yoshiaki TAMURA
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20220206214
    • Publication date Jun 30, 2022
    • Sumitomo Electric Industries, Ltd.
    • Yoshiaki TAMURA
    • G02 - OPTICS
  • Information Patent Application

    Electronic Apparatus
    • Publication number 20220045461
    • Publication date Feb 10, 2022
    • KYOCERA DOCUMENT SOLUTIONS INC.
    • Minoru SHINBA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20210294028
    • Publication date Sep 23, 2021
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka SAKUMA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20210171390
    • Publication date Jun 10, 2021
    • Sumitomo Electric Industries, Ltd.
    • Yoshiaki TAMURA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    OPTICAL FIBER LINE, MODULE, AND METHOD FOR MANUFACTURING OPTICAL FI...
    • Publication number 20210157053
    • Publication date May 27, 2021
    • Sumitomo Electric Industries, Ltd.
    • Masato SUZUKI
    • G02 - OPTICS
  • Information Patent Application

    IMAGE FORMING APPARATUS
    • Publication number 20210055684
    • Publication date Feb 25, 2021
    • KYOCERA DOCUMENT SOLUTIONS INC.
    • Yoshiaki TAMURA
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20200400879
    • Publication date Dec 24, 2020
    • SUMITOMO ELECTRIC INDUSTRIES, LTD.
    • Yuki KAWAGUCHI
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20200393613
    • Publication date Dec 17, 2020
    • Sumitomo Electric Industries, Ltd.
    • Yoshiaki TAMURA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER, COATED OPTICAL FIBER, AND OPTICAL TRANSMISSION SYSTEM
    • Publication number 20200333528
    • Publication date Oct 22, 2020
    • Sumitomo Electric Industries, Ltd.
    • Yuki KAWAGUCHI
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20200292750
    • Publication date Sep 17, 2020
    • Sumitomo Electric Industries, Ltd.
    • Masato SUZUKI
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20200249393
    • Publication date Aug 6, 2020
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka SAKUMA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20200241198
    • Publication date Jul 30, 2020
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka SAKUMA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20200024182
    • Publication date Jan 23, 2020
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka SAKUMA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20190384000
    • Publication date Dec 19, 2019
    • Sumitomo Electric Industries, Ltd.
    • Yoshiaki TAMURA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20190324195
    • Publication date Oct 24, 2019
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka SAKUMA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    OPTICAL FIBER BASE MATERIAL MANUFACTURING METHOD, OPTICAL FIBER BAS...
    • Publication number 20190292089
    • Publication date Sep 26, 2019
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka SAKUMA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    OPTICAL FIBER, COLORED OPTICAL FIBER, AND OPTICAL TRANSMISSION SYSTEM
    • Publication number 20190278020
    • Publication date Sep 12, 2019
    • Sumitomo Electric Industries, Ltd.
    • Yuki KAWAGUCHI
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER LINE AND OPTICAL FIBER LINE MANUFACTURING METHOD
    • Publication number 20190278021
    • Publication date Sep 12, 2019
    • Sumitomo Electric Industries, Ltd.
    • Masato SUZUKI
    • G02 - OPTICS
  • Information Patent Application

    METHOD OF MANUFACTURING OPTICAL FIBER PREFORM AND OPTICAL FIBER PRE...
    • Publication number 20190270662
    • Publication date Sep 5, 2019
    • Sumitomo Electric Industries, Ltd.
    • Tetsuya HARUNA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    OPTICAL AMPLIFIER AND MULTI-CORE OPTICAL FIBER
    • Publication number 20190207358
    • Publication date Jul 4, 2019
    • Sumitomo Electric Industries, Ltd.
    • Takemi HASEGAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COUPLED MULTICORE OPTICAL FIBER AND OPTICAL TRANSMISSION SYSTEM INC...
    • Publication number 20190041574
    • Publication date Feb 7, 2019
    • Sumitomo Electric Industries, Ltd.
    • Takemi HASEGAWA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER PREFORM
    • Publication number 20190016630
    • Publication date Jan 17, 2019
    • Sumitomo Electric Industries, Ltd.
    • Keisei MORITA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20180362392
    • Publication date Dec 20, 2018
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka SAKUMA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    METHOD FOR PRODUCING MULTI-CORE OPTICAL FIBER
    • Publication number 20180016181
    • Publication date Jan 18, 2018
    • Sumitomo Electric Industries, Ltd.
    • Yoshiaki TAMURA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20170371096
    • Publication date Dec 28, 2017
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka SAKUMA
    • G02 - OPTICS
  • Information Patent Application

    MULTICORE OPTICAL FIBER
    • Publication number 20170351022
    • Publication date Dec 7, 2017
    • Sumitomo Electric Industries, Ltd.
    • Tetsuya NAKANISHI
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20170305781
    • Publication date Oct 26, 2017
    • Sumitomo Electric Industries, Ltd.
    • Tetsuya HARUNA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER AND LIGHT SOURCE DEVICE
    • Publication number 20170153375
    • Publication date Jun 1, 2017
    • Sumitomo Electric Industries, Ltd.
    • Yoshinori YAMAMOTO
    • G02 - OPTICS