Shigeaki Nishikawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
External modulator for optical communication
- Patent number 5,506,721
- Issue date Apr 9, 1996
- The Furukawa Electric Co., Ltd.
- Toshiya Hikami
- G02 - OPTICS
Information Patent Grant
Method and apparatus for receiving light with a modulated polarization
- Patent number 5,497,437
- Issue date Mar 5, 1996
- The Furukawa Electric Co., Ltd.
- Toshiya Hikami
- G02 - OPTICS
Information Patent Grant
Optical external modulator for optical telecommunications
- Patent number 5,471,545
- Issue date Nov 28, 1995
- The Furukawa Electric Co., Ltd.
- Shoichi Negami
- G02 - OPTICS