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Kawasaki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Transmission apparatus and transmission method
Patent number
10,972,188
Issue date
Apr 6, 2021
Fujitsu Limited
Tomoyuki Kato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission apparatus, optical transmission system, and me...
Patent number
10,571,775
Issue date
Feb 25, 2020
Fujitsu Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmission system and transmission method
Patent number
10,567,081
Issue date
Feb 18, 2020
Fujitsu Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission apparatus, optical transmission system, and me...
Patent number
10,451,955
Issue date
Oct 22, 2019
Fujitsu Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmission device and time synchronization method
Patent number
9,703,315
Issue date
Jul 11, 2017
Fujitsu Limited
Mitsuya Kawashita
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Optical amplification device and method of controlling optical module
Patent number
9,240,666
Issue date
Jan 19, 2016
Fujitsu Limited
Mitsuya Kawashita
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Light output control apparatus
Patent number
9,215,009
Issue date
Dec 15, 2015
Fujitsu Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical packet switching system
Patent number
9,167,319
Issue date
Oct 20, 2015
Fujitsu Telecom Networks Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Excitation light source for raman amplification, raman amplifier, a...
Patent number
8,947,767
Issue date
Feb 3, 2015
Fujitsu Telecom Networks Limited
Shota Mori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical communication device and signal adjusting method
Patent number
8,891,966
Issue date
Nov 18, 2014
Fujitsu Limited
Tatsuya Toyozumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical packet switching system, optical packet switching device, a...
Patent number
8,886,039
Issue date
Nov 11, 2014
Fujitsu Telecom Networks Limited
Kimio Uekama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Raman amplifier
Patent number
8,879,145
Issue date
Nov 4, 2014
Fujitsu Limited
Tomoaki Takeyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical packet switching system and optical packet transmitter device
Patent number
8,879,910
Issue date
Nov 4, 2014
Fujitsu Telecom Networks Limited
Kimio Uekama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical packet switching system and optical packet switching device
Patent number
8,837,941
Issue date
Sep 16, 2014
Fujitsu Telecom Networks Limited
Kimio Uekama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system
Patent number
8,805,200
Issue date
Aug 12, 2014
Fujitsu Telecom Networks Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical packet switching system
Patent number
8,798,462
Issue date
Aug 5, 2014
Fujitsu Telecom Networks Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical packet switch device
Patent number
8,755,374
Issue date
Jun 17, 2014
Fujitsu Telecom Networks Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical packet switching system
Patent number
8,724,989
Issue date
May 13, 2014
Fujitsu Telecom Networks Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical packet switching apparatus, optical packet switching system...
Patent number
8,705,958
Issue date
Apr 22, 2014
Fujitsu Telecom Networks Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical packet switching apparatus
Patent number
8,542,996
Issue date
Sep 24, 2013
Fujitsu Telecom Networks Limited
Wataru Kawasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical amplifier, and optical transmission system including the op...
Patent number
8,077,384
Issue date
Dec 13, 2011
Fujitsu Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavelength division multiplexing optical transmission system
Patent number
7,515,829
Issue date
Apr 7, 2009
Fujitsu Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavelength multiplexing method and an apparatus thereof
Patent number
7,209,661
Issue date
Apr 24, 2007
Fujitsu Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical amplifier and optical amplification method
Patent number
7,123,404
Issue date
Oct 17, 2006
Fujitsu Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of measuring wavelength dispersion amount and optical transm...
Patent number
6,864,968
Issue date
Mar 8, 2005
Fujitsu Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Raman excitation control method and optical transmission system usi...
Patent number
6,674,567
Issue date
Jan 6, 2004
Fujitsu Limited
Toshihiro Ohtani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical amplifier
Patent number
6,532,102
Issue date
Mar 11, 2003
Fujitsu Limited
Hideki Kobayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSMISSION SYSTEM, AND ME...
Publication number
20200004107
Publication date
Jan 2, 2020
Fujitsu Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRANSMISSION APPARATUS AND TRANSMISSION METHOD
Publication number
20190305852
Publication date
Oct 3, 2019
Fujitsu Limited
Tomoyuki Kato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSMISSION SYSTEM, AND ME...
Publication number
20190146306
Publication date
May 16, 2019
Fujitsu Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRANSMISSION SYSTEM AND TRANSMISSION METHOD
Publication number
20190115993
Publication date
Apr 18, 2019
Fujitsu Limited
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRANSMISSION DEVICE AND TIME SYNCHRONIZATION METHOD
Publication number
20160109900
Publication date
Apr 21, 2016
Fujitsu Limited
MITSUYA KAWASHITA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
OPTICAL AMPLIFICATION DEVICE AND METHOD OF CONTROLLING OPTICAL MODULE
Publication number
20140340739
Publication date
Nov 20, 2014
Fujitsu Limited
Mitsuya Kawashita
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OPTICAL PACKET SWITCHING SYSTEM
Publication number
20140205292
Publication date
Jul 24, 2014
FUJITSU TELECOM NETWORKS LIMITED
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RAMAN AMPLIFIER
Publication number
20140146385
Publication date
May 29, 2014
FUJITSU TELECOM NETWORKS LIMITED
Tomoaki TAKEYAMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
EXCITATION LIGHT SOURCE FOR RAMAN AMPLIFICATION, RAMAN AMPLIFIER, A...
Publication number
20130162987
Publication date
Jun 27, 2013
Fujitsu Limited
Shota Mori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OPTICAL COMMUNICATION DEVICE AND SIGNAL ADJUSTING METHOD
Publication number
20120315039
Publication date
Dec 13, 2012
FUJITSU TELECOM NETWORKS LIMITED
Tatsuya TOYOZUMI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL PACKET SWITCHING SYSTEM
Publication number
20120301139
Publication date
Nov 29, 2012
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL PACKET SWITCHING SYSTEM
Publication number
20120251109
Publication date
Oct 4, 2012
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL PACKET SWITCHING SYSTEM, OPTICAL PACKET SWITCHING DEVICE, A...
Publication number
20120201537
Publication date
Aug 9, 2012
Kimio Uekama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL PACKET SWITCHING SYSTEM AND OPTICAL PACKET TRANSMITTER DEVICE
Publication number
20120201538
Publication date
Aug 9, 2012
Kimio Uekama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL PACKET SWITCHING SYSTEM AND OPTICAL PACKET SWITCHING DEVICE
Publication number
20120201540
Publication date
Aug 9, 2012
Kimio Uekama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL PACKET SWITCH DEVICE
Publication number
20120163815
Publication date
Jun 28, 2012
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL PACKET SWITCHING APPARATUS, OPTICAL PACKET SWITCHING SYSTEM...
Publication number
20120148239
Publication date
Jun 14, 2012
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL PACKET SWITCHING APPARATUS
Publication number
20120128352
Publication date
May 24, 2012
Wataru Kawasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM
Publication number
20110217040
Publication date
Sep 8, 2011
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical amplifier, and optical transmission system including the op...
Publication number
20100134875
Publication date
Jun 3, 2010
FUJITSU LIMITED
Shota MORI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LIGHT OUTPUT CONTROL APPARATUS
Publication number
20090323173
Publication date
Dec 31, 2009
FUJITSU LIMITED
Shota MORI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wavelength division multiplexing optical transmission system
Publication number
20060018658
Publication date
Jan 26, 2006
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Raman excitation control method and optical transmission system usi...
Publication number
20050057794
Publication date
Mar 17, 2005
FUJITSU LIMITED
Toshihiro Ohtani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wavelength multiplexing method and an apparatus thereof
Publication number
20040081421
Publication date
Apr 29, 2004
FUJITSU LIMITED
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmitter, optical repeater, optical receiver and optical...
Publication number
20030170028
Publication date
Sep 11, 2003
FUJITSU LIMITED
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method of measuring wavelength dispersion amount and optical transm...
Publication number
20030071985
Publication date
Apr 17, 2003
FUJITSU LIMITED
Shota Mori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Raman excitation control method and optical transmission system usi...
Publication number
20020149841
Publication date
Oct 17, 2002
FUJITSU LIMITED
Toshihiro Ohtani
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Optical amplifier
Publication number
20020114060
Publication date
Aug 22, 2002
Hideki Kobayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE