Akihisa WATANABE

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Osaka-shi, Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber unit and optical fiber cable
- Patent number 11,892,700
- Issue date Feb 6, 2024
- Sumitomo Electric Industries, Ltd.
- Akihisa Watanabe
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL FIBER CABLE AND CABLE WITH CONNECTOR
- Publication number 20240019652
- Publication date Jan 18, 2024
- Sumitomo Electric Industries, Ltd.
- Akihisa WATANABE
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER RIBBON AND METHOD FOR MANUFACTURING OPTICAL FIBER RIBBON
- Publication number 20230393350
- Publication date Dec 7, 2023
- Sumitomo Electric Industries, Ltd.
- Akihisa WATANABE
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER UNIT AND OPTICAL FIBER CABLE
- Publication number 20220326467
- Publication date Oct 13, 2022
- Sumitomo Electric Industries, Ltd.
- Akihisa WATANABE
- G02 - OPTICS