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Takemi Hasegawa

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  • Kanagawa, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    OPTICAL FIBER AND METHOD FOR PRODUCING OPTICAL FIBER
    • Publication number 20250052949
    • Publication date Feb 13, 2025
    • Sumitomo Electric Industries, Ltd.
    • Takemi HASEGAWA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20240402417
    • Publication date Dec 5, 2024
    • Sumitomo Electric Industries, Ltd.
    • Shin SATO
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL AMPLIFICATION TRANSMISSION LINE
    • Publication number 20240275117
    • Publication date Aug 15, 2024
    • Sumitomo Electric Industries, Ltd.
    • Shigehiro NAGANO
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    MULTI-CORE OPTICAL FIBER AND CORE IDENTIFICATION METHOD
    • Publication number 20240176063
    • Publication date May 30, 2024
    • Sumitomo Electric Industries, Ltd.
    • Takahiro SUGANUMA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20240036251
    • Publication date Feb 1, 2024
    • Sumitomo Electric Industries, Ltd.
    • Shin SATO
    • G02 - OPTICS
  • Information Patent Application

    GLASS ROD MANUFACTURING DEVICE AND GLASS ROD MANUFACTURING METHOD
    • Publication number 20240025789
    • Publication date Jan 25, 2024
    • Sumitomo Electric Industries, Ltd.
    • Tomomi MORIYA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    MULTICORE OPTICAL FIBER
    • Publication number 20230333311
    • Publication date Oct 19, 2023
    • Sumitomo Electric Industries, Ltd.
    • Takemi HASEGAWA
    • G02 - OPTICS
  • Information Patent Application

    MULTICORE OPTICAL FIBER AND OPTICAL TRANSMISSION SYSTEM
    • Publication number 20230333312
    • Publication date Oct 19, 2023
    • Sumitomo Electric Industries, Ltd.
    • Takahiro SUGANUMA
    • G02 - OPTICS
  • Information Patent Application

    MULTICORE OPTICAL FIBER
    • Publication number 20230288631
    • Publication date Sep 14, 2023
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka SAKUMA
    • G02 - OPTICS
  • Information Patent Application

    MULTICORE OPTICAL FIBER
    • Publication number 20230266521
    • Publication date Aug 24, 2023
    • Sumitomo Electric Industries, Ltd.
    • Takemi HASEGAWA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER AND OPTICAL CABLE
    • Publication number 20230228936
    • Publication date Jul 20, 2023
    • Sumitomo Electric Industries, Ltd.
    • Takemi HASEGAWA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER AND METHOD FOR PRODUCING OPTICAL FIBER
    • Publication number 20230228937
    • Publication date Jul 20, 2023
    • Sumitomo Electric Industries, Ltd.
    • Takemi HASEGAWA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    GAIN FLATTENING FILTER, AND METHOD FOR MANUFACTURING GAIN FLATTENIN...
    • Publication number 20230152514
    • Publication date May 18, 2023
    • Sumitomo Electric Industries, Ltd.
    • Shigehiro NAGANO
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20230037687
    • Publication date Feb 9, 2023
    • Sumitomo Electric Industries, Ltd.
    • Yuki KAWAGUCHI
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20230016133
    • Publication date Jan 19, 2023
    • Sumitomo Electric Industries, Ltd.
    • Takemi HASEGAWA
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER AND OPTICAL FIBER FILTER
    • Publication number 20220196908
    • Publication date Jun 23, 2022
    • Sumitomo Electric Industries, Ltd.
    • Shigehiro NAGANO
    • G02 - OPTICS
  • Information Patent Application

    MODE-DEPENDENT LOSS MEASUREMENT DEVICE AND MODE-DEPENDENT LOSS MEAS...
    • Publication number 20210372882
    • Publication date Dec 2, 2021
    • Sumitomo Electric Industries, Ltd.
    • Takemi HASEGAWA
    • G02 - OPTICS
  • Information Patent Application

    SLANT-TYPE FIBER GRATING
    • Publication number 20210223468
    • Publication date Jul 22, 2021
    • Sumitomo Electric Industries, Ltd.
    • Shigehiro NAGANO
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20210199886
    • Publication date Jul 1, 2021
    • Sumitomo Electric Industries, Ltd.
    • Masato SUZUKI
    • G02 - OPTICS
  • 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

    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 20210096297
    • Publication date Apr 1, 2021
    • Sumitomo Electric Industries, Ltd.
    • Takemi HASEGAWA
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Application

    OPTICAL FIBER
    • Publication number 20200393614
    • Publication date Dec 17, 2020
    • Sumitomo Electric Industries, Ltd.
    • Masato SUZUKI
    • 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

    NONLINEARITY MEASURING METHOD AND NONLINEARITY MEASURING DEVICE
    • Publication number 20200056958
    • Publication date Feb 20, 2020
    • Sumitomo Electric Industries, Ltd.
    • Takemi HASEGAWA
    • G02 - OPTICS
  • 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 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

    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

    OPTICAL FIBER AND SLANTED FIBER GRATING
    • Publication number 20190154912
    • Publication date May 23, 2019
    • Sumitomo Electric Industries, Ltd.
    • Shigehiro NAGANO
    • G02 - OPTICS
  • Information Patent Application

    METHOD FOR AXIAL ALIGNMENT OF COUPLED MULTICORE OPTICAL FIBER
    • Publication number 20190113682
    • Publication date Apr 18, 2019
    • Sumitomo Electric Industries, Ltd.
    • Hirotaka SAKUMA
    • G02 - OPTICS