Toshinori Nozawa

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Kunitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electrically controlled optical device
- Patent number 5,220,627
- Issue date Jun 15, 1993
- Nippon Telegraph & Telephone Corporation
- Kenji Kawano
- G02 - OPTICS
Information Patent Grant
Electrically controlled optical device
- Patent number 5,129,017
- Issue date Jul 7, 1992
- Nippon Telegraph and Telephone Company
- Kenji Kawano
- G02 - OPTICS