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Katsuhiko Hirabayashi

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  • Tokyo, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    Optical Module
    • Publication number 20230251432
    • Publication date Aug 10, 2023
    • Nippon Telegraph and Telephone Corporation
    • Yuji Fujiwara
    • G02 - OPTICS
  • Information Patent Application

    Optical Module
    • Publication number 20220390670
    • Publication date Dec 8, 2022
    • Nippon Telegraph and Telephone Corporation
    • Yuji Fujiwara
    • G02 - OPTICS
  • Information Patent Application

    Optical Waveguide Chip
    • Publication number 20220236482
    • Publication date Jul 28, 2022
    • Nippon Telegraph and Telephone Corporation
    • Satomi Katayose
    • G02 - OPTICS
  • Information Patent Application

    End Structure of a Waveguide
    • Publication number 20220091339
    • Publication date Mar 24, 2022
    • Nippon Telegraph and Telephone Corporation
    • Katsuhiko Hirabayashi
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL FIBER AND MANUFACTURING METHOD THEREOF
    • Publication number 20220075120
    • Publication date Mar 10, 2022
    • Nippon Telegraph and Telephone Corporation
    • Katsuhiko Hirabayashi
    • G02 - OPTICS
  • Information Patent Application

    Filling Resin and Optical Waveguide Circuit Filled with Filling Resin
    • Publication number 20210255395
    • Publication date Aug 19, 2021
    • Nippon Telegraph and Telephone Corporation
    • Katsuhiko Hirabayashi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Method for Adjusting Transmitted Wavelength of Signal Light Transmi...
    • Publication number 20210240015
    • Publication date Aug 5, 2021
    • Nippon Telegraph and Telephone Corporation
    • Katsuhiko Hirabayashi
    • G02 - OPTICS
  • Information Patent Application

    WAVEGUIDE TYPE OPTICAL INTERFEROMETER CIRCUIT
    • Publication number 20200386943
    • Publication date Dec 10, 2020
    • Nippon Telegraph and Telephone Corporation
    • Nobutatsu Koshoubu
    • G02 - OPTICS
  • Information Patent Application

    Waveguide-type optical device and manufacturing method therefor
    • Publication number 20020076161
    • Publication date Jun 20, 2002
    • Nippon Telegraph and Telephone Corporation
    • Katsuhiko Hirabayashi
    • G02 - OPTICS