Nobumasa Nirasawa

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical cable and manufacturing method thereof
- Patent number 5,661,836
- Issue date Aug 26, 1997
- Sumitomo Electric Industries, Ltd.
- Hiroaki Sano
- G02 - OPTICS
Information Patent Grant
Method and apparatus for manufacturing optical fiber cable
- Patent number 5,315,813
- Issue date May 31, 1994
- Sumitomo Electric Industries, Ltd.
- Yasushi Ito
- G02 - OPTICS
Information Patent Grant
Waterproof optical cable
- Patent number 4,767,184
- Issue date Aug 30, 1988
- Sumitomo Electric Industries, Ltd.
- Ichiro Ogasawara
- G02 - OPTICS