Tooru Yanagi

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for joining coated optical fibers by fusion
- Patent number 5,046,812
- Issue date Sep 10, 1991
- Sumitomo Electric Industries Ltd.
- Tooru Yanagi
- G02 - OPTICS
Information Patent Grant
Optical fiber connecting jig
- Patent number 4,750,804
- Issue date Jun 14, 1988
- Sumitomo Electric Industries, Ltd.
- Keiji Osaka
- G02 - OPTICS
Information Patent Grant
Method for splicing optical fibers
- Patent number 4,749,252
- Issue date Jun 7, 1988
- Sumitomo Electric Industries, Ltd.
- Tooru Yanagi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of and apparatus for coupling multicore coated optical fibers
- Patent number 4,715,876
- Issue date Dec 29, 1987
- Sumitomo Electric Industries, Ltd.
- Keiji Osaka
- G02 - OPTICS