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Akito Chiba
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Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Method for evaluating characteristic of optical modulator having ma...
Patent number
8,867,042
Issue date
Oct 21, 2014
National Institute of Information and Communications Technology
Tetsuya Kawanishi
G02 - OPTICS
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Patent Grant
Quadrature amplitude modulation signal generating device
Patent number
8,676,060
Issue date
Mar 18, 2014
National Institute of Information and Communications Technology
Tetsuya Kawanishi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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Patent Application
METHOD FOR EVALUATING CHARACTERISTIC OF OPTICAL MODULATOR HAVING MA...
Publication number
20120162656
Publication date
Jun 28, 2012
Tetsuya Kawanishi
G02 - OPTICS
Information
Patent Application
QUADRATURE AMPLITUDE MODULATION SIGNAL GENERATING DEVICE
Publication number
20100202785
Publication date
Aug 12, 2010
National Institute of Information and Communications Technology
Tetsuya Kawanishi
H04 - ELECTRIC COMMUNICATION TECHNIQUE