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Optical fiber
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Patent number 11,914,186
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Issue date Feb 27, 2024
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Sumitomo Electric Industries, Ltd.
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Katsushi Hamakubo
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Optical fiber
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Patent number 11,603,331
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Issue date Mar 14, 2023
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Sumitomo Electric Industries, Ltd.
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Katsushi Hamakubo
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G02 - OPTICS
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Optical fiber
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Patent number 11,579,358
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Issue date Feb 14, 2023
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Sumitomo Electric Industries, Ltd.
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Katsushi Hamakubo
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C03 - GLASS MINERAL OR SLAG WOOL
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Resin composition and optical fiber
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Patent number 11,573,367
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Issue date Feb 7, 2023
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Sumitomo Electric Industries, Ltd.
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Katsushi Hamakubo
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Optical fiber
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Patent number 11,472,735
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Issue date Oct 18, 2022
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Sumitomo Electric Industries, Ltd.
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Chiaki Tokuda
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C03 - GLASS MINERAL OR SLAG WOOL
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