Kenji SAHARA

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Variable optical attenuator
- Patent number 9,488,847
- Issue date Nov 8, 2016
- Kohoku Kogyo Co., Ltd.
- Hiroaki Ono
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
VARIABLE OPTICAL ATTENUATOR
- Publication number 20130308188
- Publication date Nov 21, 2013
- Hiroaki ONO
- G02 - OPTICS