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Keisei MORITA

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  • Yokohama-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for manufacturing optical fiber
    • Patent number 12,291,481
    • Issue date May 6, 2025
    • Sumitomo Electric Industries, Ltd.
    • Iwao Okazaki
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Optical fiber
    • Patent number 11,366,267
    • Issue date Jun 21, 2022
    • Sumitomo Electric Industries, Ltd.
    • Yoshinori Yamamoto
    • 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
    • Patent number 11,048,040
    • Issue date Jun 29, 2021
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka Sakuma
    • G02 - OPTICS
  • Information Patent Grant

    Optical fiber
    • Patent number 11,022,749
    • Issue date Jun 1, 2021
    • Sumitomo Electric Industries, Ltd.
    • Hiroki Ishikawa
    • G02 - OPTICS
  • Information Patent Grant

    Optical fiber
    • Patent number 10,908,354
    • Issue date Feb 2, 2021
    • Sumitomo Electric Industries, Ltd.
    • Keisei Morita
    • 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 10,656,329
    • Issue date May 19, 2020
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka Sakuma
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

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

    Optical fiber and colored optical fiber
    • Patent number 10,048,437
    • Issue date Aug 14, 2018
    • Sumitomo Electric Industries, Ltd.
    • Keisei Morita
    • G02 - OPTICS
  • 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

Patents Applicationslast 30 patents

  • Information Patent Application

    SILICA GLASS BODY MANUFACTURING METHOD AND HEATING DEVICE
    • Publication number 20250091932
    • Publication date Mar 20, 2025
    • Shinji ISHIKAWA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    OPTICAL FIBER AND OPTICAL CABLE
    • Publication number 20240418930
    • Publication date Dec 19, 2024
    • Sumitomo Electric Industries, Ltd.
    • Kazuyuki SOHMA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20240369758
    • Publication date Nov 7, 2024
    • Sumitomo Electric Industries, Ltd.
    • Keisei MORITA
    • G02 - OPTICS
  • Information Patent Application

    METHOD FOR MANUFACTURING OPTICAL FIBER
    • Publication number 20240199480
    • Publication date Jun 20, 2024
    • Sumitomo Electric Industries, Ltd.
    • Iwao OKAZAKI
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    METHOD FOR MANUFACTURING FLUORINE-CONTAINING SILICA GLASS
    • Publication number 20230382780
    • Publication date Nov 30, 2023
    • Sumitomo Electric Industries, Ltd.
    • Tetsuya HARUNA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    METHOD FOR PRODUCING FLUORINE-CONTAINING SILICA GLASS
    • Publication number 20230339797
    • Publication date Oct 26, 2023
    • Sumitomo Electric Industries, Ltd.
    • Shinji ISHIKAWA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20230080429
    • Publication date Mar 16, 2023
    • Sumitomo Electric Industries, Ltd.
    • Takahiro NOMURA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20210132291
    • Publication date May 6, 2021
    • Sumitomo Electric Industries, Ltd.
    • Yoshinori YAMAMOTO
    • C03 - GLASS MINERAL OR SLAG WOOL
  • 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
    • Publication number 20200278492
    • Publication date Sep 3, 2020
    • Sumitomo Electric Industries, Ltd.
    • Keisei MORITA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20200278493
    • Publication date Sep 3, 2020
    • Sumitomo Electric Industries, Ltd.
    • Hiroki ISHIKAWA
    • 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 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 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

    OPTICAL FIBER AND COLORED OPTICAL FIBER
    • Publication number 20180074258
    • Publication date Mar 15, 2018
    • Sumitomo Electric Industries, Ltd.
    • Keisei MORITA
    • G02 - OPTICS
  • Information Patent Application

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