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Hiroyuki Akiyama
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Kawasaki, JP
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last 30 patents
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Patent Grant
SDH transmission apparatus and signal transmission method
Patent number
7,515,527
Issue date
Apr 7, 2009
Fujitsu Limited
Hiroyuki Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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last 30 patents
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Patent Application
SDH transmission apparatus and signal transmission method
Publication number
20060023630
Publication date
Feb 2, 2006
Hiroyuki Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE