Koushi Ishihara

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Mito, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical cable and its manufacturing method
- Patent number 5,136,673
- Issue date Aug 4, 1992
- Nippon Telegraph & Telephone Corporation
- Nobuyuki Yoshizawa
- G02 - OPTICS
Information Patent Grant
Apparatus for fusion splicing optical fibers
- Patent number 4,878,933
- Issue date Nov 7, 1989
- Fujikura Ltd.
- Takeshi Yamada
- G02 - OPTICS
Information Patent Grant
Optical connector and method of manufacturing a pair of ferrules th...
- Patent number 4,708,433
- Issue date Nov 24, 1987
- Sumitomo Electric Industries, Ltd.
- Toshiaki Kakii
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Submarine optical fiber cable with dam means
- Patent number 4,684,213
- Issue date Aug 4, 1987
- Nippon Telegraph & Telephone Public Corporation
- Koushi Ishihara
- G02 - OPTICS