Naoki Nakao

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber distribution module for holding an optical fiber cord...
- Patent number 6,256,443
- Issue date Jul 3, 2001
- Nippon Telegraph and Telephone Corporation
- Shigenori Uruno
- G02 - OPTICS
Information Patent Grant
Optical switch and switching method
- Patent number 6,002,819
- Issue date Dec 14, 1999
- Sumitomo Electric Industries, Ltd.
- Kazuhito Saito
- G02 - OPTICS
Information Patent Grant
Optical switch
- Patent number 5,832,149
- Issue date Nov 3, 1998
- Furukawa Electric Co., Ltd.
- Seiji Omizu
- G02 - OPTICS
Information Patent Grant
Optical switch apparatus
- Patent number 5,796,888
- Issue date Aug 18, 1998
- Fujikura Ltd.
- Tohru Furukawa
- G02 - OPTICS