Koji TAKEGUCHI

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Transmission device, transmission system, and transmission method
- Patent number 9,515,848
- Issue date Dec 6, 2016
- Fujitsu Limited
- Toshihiro Togo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical add drop multiplexer
- Patent number 9,264,167
- Issue date Feb 16, 2016
- Fujitsu Limited
- Kazuo Takatsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system and noise suppression method
- Patent number 9,197,347
- Issue date Nov 24, 2015
- Fujitsu Limited
- Mineshi Nakashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Failure protection method and node apparatus
- Patent number 9,154,373
- Issue date Oct 6, 2015
- Fujitsu Limited
- Toshihiro Togo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device and optical filter circuit
- Patent number 8,977,130
- Issue date Mar 10, 2015
- Fujitsu Limited
- Koji Takeguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of switching optical transport network and node device
- Patent number 8,965,197
- Issue date Feb 24, 2015
- Fujitsu Limited
- Katsuhiro Shirai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication apparatus and path setting control method
- Patent number 8,681,785
- Issue date Mar 25, 2014
- Fujitsu Limited
- Katsuhiro Shirai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication device, system and method to form communication route
- Patent number 8,320,278
- Issue date Nov 27, 2012
- Fujitsu Limited
- Koji Takeguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission system
- Patent number 7,957,429
- Issue date Jun 7, 2011
- Fujitsu Limited
- Koji Takeguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Relay transmission apparatus
- Patent number 7,548,693
- Issue date Jun 16, 2009
- Fujitsu Limited
- Gaku Kimura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Coupler-based optical cross-connect
- Patent number 7,266,294
- Issue date Sep 4, 2007
- Fujitsu Limited
- Yasuhiko Aoki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical ring network with hub node and method
- Patent number 7,184,663
- Issue date Feb 27, 2007
- Fujitsu Limited
- Susumu Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical clock signal distribution system in WDM network
- Patent number 7,024,121
- Issue date Apr 4, 2006
- Fujitsu Limited
- Nobuhiro Rikitake
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
SDH transmission system, SDH transmission equipment and line switch...
- Patent number 6,735,171
- Issue date May 11, 2004
- Fujitsu Limited
- Koji Takeguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network synchronization controller and timing loop prevention method
- Patent number 6,567,422
- Issue date May 20, 2003
- Fujitsu Limited
- Koji Takeguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
TRANSMISSION DEVICE, TRANSMISSION SYSTEM, AND TRANSMISSION METHOD
- Publication number 20150098702
- Publication date Apr 9, 2015
- Fujitsu Limited
- Toshihiro TOGO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FAILURE PROTECTION METHOD AND NODE APPARATUS
- Publication number 20130294229
- Publication date Nov 7, 2013
- Fujitsu Limited
- Toshihiro Togo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION SYSTEM AND NOISE SUPPRESSION METHOD
- Publication number 20130071104
- Publication date Mar 21, 2013
- Fujitsu Limited
- Mineshi Nakashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD OF SWITCHING OPTICAL TRANSPORT NETWORK AND NODE DEVICE
- Publication number 20120263452
- Publication date Oct 18, 2012
- Fujitsu Limited
- Katsuhiro SHIRAI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE AND OPTICAL FILTER CIRCUIT
- Publication number 20120207477
- Publication date Aug 16, 2012
- FUJITSU LIMITED
- Koji TAKEGUCHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL ADD DROP MULTIPLEXER
- Publication number 20120002964
- Publication date Jan 5, 2012
- FUJITSU LIMITED
- Kazuo TAKATSU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH DIVISION MULTIPLEXING APPARATUS AND DISPERSION COMPENSAT...
- Publication number 20100247095
- Publication date Sep 30, 2010
- FUJITSU LIMITED
- Takehiro Fujita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMMUNICATION DEVICE, SYSTEM AND METHOD TO FORM COMMUNICATION ROUTE
- Publication number 20100165987
- Publication date Jul 1, 2010
- FUJITSU LIMITED
- Koji Takeguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMMUNICATION APPARATUS AND PATH SETTING CONTROL METHOD
- Publication number 20100118872
- Publication date May 13, 2010
- FUJITSU LIMITED
- Katsuhiro SHIRAI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Transmission system
- Publication number 20070248119
- Publication date Oct 25, 2007
- Koji Takeguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Relay transmission apparatus
- Publication number 20050213970
- Publication date Sep 29, 2005
- Gaku Kimura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Upgraded flexible open ring optical network and method
- Publication number 20050175346
- Publication date Aug 11, 2005
- FUJITSU LIMITED
- Koji Takeguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Coupler-based optical cross-connect
- Publication number 20050117909
- Publication date Jun 2, 2005
- Fujitsu Network Communications, Inc.
- Yasuhiko Aoki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System and method for communicating optical traffic between ring ne...
- Publication number 20050019034
- Publication date Jan 27, 2005
- Fujitsu Network Communications, Inc.
- Yasuhiko Aoki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical ring network with hub node and method
- Publication number 20040208578
- Publication date Oct 21, 2004
- Susumu Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical network with distributed sub-band rejections
- Publication number 20040052530
- Publication date Mar 18, 2004
- Cechan Tian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical clock signal distribution system in WDM network
- Publication number 20030059160
- Publication date Mar 27, 2003
- Nobuhiro Rikitake
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Network managing method, network node apparatus, and mesh-type network
- Publication number 20020012318
- Publication date Jan 31, 2002
- Ryuichi Moriya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Koji TAKEGUCHI

Person

Patents Grantslast 30 patents

Transmission device, transmission system, and transmission method

Optical add drop multiplexer

Optical transmission system and noise suppression method

Failure protection method and node apparatus

Optical transmission device and optical filter circuit

Method of switching optical transport network and node device

Communication apparatus and path setting control method

Communication device, system and method to form communication route

Transmission system

Relay transmission apparatus

Coupler-based optical cross-connect

Optical ring network with hub node and method

Optical clock signal distribution system in WDM network

SDH transmission system, SDH transmission equipment and line switch...

Network synchronization controller and timing loop prevention method

Patents Applicationslast 30 patents

TRANSMISSION DEVICE, TRANSMISSION SYSTEM, AND TRANSMISSION METHOD

FAILURE PROTECTION METHOD AND NODE APPARATUS

OPTICAL TRANSMISSION SYSTEM AND NOISE SUPPRESSION METHOD

METHOD OF SWITCHING OPTICAL TRANSPORT NETWORK AND NODE DEVICE

OPTICAL TRANSMISSION DEVICE AND OPTICAL FILTER CIRCUIT

OPTICAL ADD DROP MULTIPLEXER

WAVELENGTH DIVISION MULTIPLEXING APPARATUS AND DISPERSION COMPENSAT...

COMMUNICATION DEVICE, SYSTEM AND METHOD TO FORM COMMUNICATION ROUTE

COMMUNICATION APPARATUS AND PATH SETTING CONTROL METHOD

Transmission system

Relay transmission apparatus

Upgraded flexible open ring optical network and method

Coupler-based optical cross-connect

System and method for communicating optical traffic between ring ne...

Optical ring network with hub node and method

Optical network with distributed sub-band rejections

Optical clock signal distribution system in WDM network

Network managing method, network node apparatus, and mesh-type network