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Yasuyuki Nagao
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Saitama, JP
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last 30 patents
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Patent Grant
Raman gain measuring method and apparatus
Patent number
7,050,220
Issue date
May 23, 2006
KDDI Corporation
Takayuki Miyakawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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last 30 patents
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Patent Application
Raman gain measuring method and apparatus
Publication number
20040207909
Publication date
Oct 21, 2004
Takayuki Miyakawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE