Fumikazu YOSHIZAWA

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Yokohama-shi, Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing intermittent connection-type optical fiber...
- Patent number 11,860,438
- Issue date Jan 2, 2024
- Sumitomo Electric Industries, Ltd.
- Fumiaki Sato
- G02 - OPTICS
Information Patent Grant
Manufacturing method of optical fiber ribbon and manufacturing appa...
- Patent number 11,181,709
- Issue date Nov 23, 2021
- SSUMITOMOM ELECTRIC INDUSTRIES, LTD.
- Fumiaki Sato
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL FIBER RIBBON
- Publication number 20240061198
- Publication date Feb 22, 2024
- Sumitomo Electric Industries, Ltd.
- Fumikazu YOSHIZAWA
- G02 - OPTICS
Information Patent Application
METHOD FOR MANUFACTURING INTERMITTENT CONNECTION-TYPE OPTICAL FIBER...
- Publication number 20230213711
- Publication date Jul 6, 2023
- Sumitomo Electric Industries, Ltd.
- Fumiaki SATO
- G02 - OPTICS
Information Patent Application
MANUFACTURING METHOD OF OPTICAL FIBER RIBBON AND MANUFACTURING APPA...
- Publication number 20200409006
- Publication date Dec 31, 2020
- Sumitomo Electric Industries, Ltd.
- Fumiaki SATO
- G02 - OPTICS
Information Patent Application
INTERMITTENTLY-COUPLED TYPE OPTICAL FIBER RIBBON, MANUFACTURING MET...
- Publication number 20200064550
- Publication date Feb 27, 2020
- Sumitomo Electric Industries, Ltd.
- Fumiaki SATO
- G02 - OPTICS