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Kouji Tanonaka
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Kawasaki, JP
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Patents Grants
last 30 patents
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Patent Grant
Wavelength-multiplexing optical transmission system and wavelength-...
Patent number
7,917,033
Issue date
Mar 29, 2011
Fujitsu Limited
Tomoyuki Sakata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus depending on timing source for synchronization
Patent number
6,628,674
Issue date
Sep 30, 2003
Fujitsu Limited
Kouji Tanonaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
SDH transmission apparatus with flexible system configuration
Patent number
6,487,223
Issue date
Nov 26, 2002
Fujitsu Limited
Kouji Tanonaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of transmitting sync clock and sync data between shelves of...
Patent number
5,682,408
Issue date
Oct 28, 1997
Fujitsu Limited
Kouji Tanonaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
SDH transmission system
Patent number
5,600,648
Issue date
Feb 4, 1997
Fujitsu Limited
Tomohisa Furuta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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Patent Application
Wavelength-multiplexing optical transmission system and wavelength-...
Publication number
20080025727
Publication date
Jan 31, 2008
FUJITSU LIMITED
Tomoyuki Sakata
H04 - ELECTRIC COMMUNICATION TECHNIQUE