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Tomoyuki SAKATA
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Fukuoka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical transmitter and optical transmission method
Patent number
9,755,777
Issue date
Sep 5, 2017
Fujitsu Limited
Koji Bato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmitter and optical transmission method
Patent number
9,537,599
Issue date
Jan 3, 2017
Fujitsu Limited
Koji Bato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission device and optical transmission method
Patent number
9,197,348
Issue date
Nov 24, 2015
Fujitsu Limited
Tomoyuki Sakata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical packet signal transmission device and WDM optical communica...
Patent number
8,712,253
Issue date
Apr 29, 2014
Fujitsu Limited
Kouichi Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission apparatus, optical transmission method, and op...
Patent number
8,200,090
Issue date
Jun 12, 2012
Fujitsu Limited
Yuichiro Sakane
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transponder unit, transponder unit control apparatus, transponder u...
Patent number
8,121,490
Issue date
Feb 21, 2012
Fujitsu Limited
Tomoyuki Sakata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
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
Optical add/drop multiplexer, control method therefor and control p...
Patent number
7,630,644
Issue date
Dec 8, 2009
Fujitsu Limited
Akira Yamamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
High-speed synchronous multiplexing apparatus
Patent number
6,041,062
Issue date
Mar 21, 2000
Fujitsu Limited
Seiichi Yamato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
TRANSMISSION DEVICE AND PHASE ADJUSTMENT METHOD
Publication number
20170180052
Publication date
Jun 22, 2017
Fujitsu Limited
Tatsuro Kishida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMITTER AND OPTICAL TRANSMISSION METHOD
Publication number
20160020866
Publication date
Jan 21, 2016
Fujitsu Limited
Koji BATO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMITTER AND OPTICAL TRANSMISSION METHOD
Publication number
20160020852
Publication date
Jan 21, 2016
Fujitsu Limited
Koji BATO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM, OPTICAL TRANSMISSION APPARATUS, AND OP...
Publication number
20140355978
Publication date
Dec 4, 2014
Fujitsu Limited
TOMOYUKI SAKATA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION APPARATUS AND METHOD
Publication number
20130336651
Publication date
Dec 19, 2013
Fujitsu Limited
Koji Bato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION DEVICE AND OPTICAL TRANSMISSION METHOD
Publication number
20130188955
Publication date
Jul 25, 2013
Fujitsu Limited
TOMOYUKI SAKATA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL PACKET SIGNAL TRANSMISSION DEVICE AND WDM OPTICAL COMMUNICA...
Publication number
20120294612
Publication date
Nov 22, 2012
Fujitsu Limited
Kouichi MAEDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSMISSION METHOD, AND OP...
Publication number
20100067917
Publication date
Mar 18, 2010
FUJITSU LIMITED
Yuichiro SAKANE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmitting apparatus and optical transmitting and receivi...
Publication number
20090297151
Publication date
Dec 3, 2009
FUJITSU LIMITED
Mitsuo Yoneda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRANSPONDER UNIT, TRANSPONDER UNIT CONTROL APPARATUS, TRANSPONDER U...
Publication number
20080232806
Publication date
Sep 25, 2008
FUJITSU LIMITED
Tomoyuki SAKATA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
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
Information
Patent Application
Optical add/drop multiplexer, control method therefor and control p...
Publication number
20070133992
Publication date
Jun 14, 2007
FUJITSU LIMITED
Akira Yamamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE