-
VLAN server
-
Patent number 8,094,660
-
Issue date Jan 10, 2012
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Hitachi, Ltd.
-
Daiki Nozue
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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-
-
-
-
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WDM type passive optical network
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Patent number 7,502,563
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Issue date Mar 10, 2009
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Hitachi Communication Technologies, Ltd.
-
Daiki Nozue
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
-
VLAN server
-
Patent number 7,420,979
-
Issue date Sep 2, 2008
-
Hitachi Communcation Technologies, Ltd.
-
Daiki Nozue
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE