Keigo YAMAMOTO

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Osaka-shi, Osaka, 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

Patents Applicationslast 30 patents

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
OPTICAL-FIBER-CABLE WINDING BOBBIN
- Publication number 20210389539
- Publication date Dec 16, 2021
- Sumitomo Electric Industries, Ltd.
- Keigo YAMAMOTO
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL