Ichiro Nakajima

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Wavelength conversion apparatus, optical parametric amplifier, tran...
- Patent number 10,782,589
- Issue date Sep 22, 2020
- Fujitsu Limited
- Tomoaki Takeyama
- G02 - OPTICS
Information Patent Grant
Optical transmission system, optical transmission apparatus, and op...
- Patent number 9,825,731
- Issue date Nov 21, 2017
- Fujitsu Limited
- Taizo Maeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device, optical transmission system, and optic...
- Patent number 9,800,347
- Issue date Oct 24, 2017
- Fujitsu Limited
- Kazuaki Nagamine
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength selective switch, variable dispersion compensator, optic...
- Patent number 9,588,297
- Issue date Mar 7, 2017
- Fujitsu Limited
- Yuji Kamura
- G02 - OPTICS
Information Patent Grant
Optical transmission apparatus and optical transmission control method
- Patent number 9,577,781
- Issue date Feb 21, 2017
- Fujitsu Limited
- Ichiro Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission apparatus and transmission system
- Patent number 9,467,244
- Issue date Oct 11, 2016
- Fujitsu Limited
- Ichiro Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device and optical transmission method
- Patent number 9,379,839
- Issue date Jun 28, 2016
- Fujitsu Limited
- Takuma Shoji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device and monitoring method of optical signal
- Patent number 9,332,326
- Issue date May 3, 2016
- Fujitsu Limited
- Akihiro Mukai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Control device of node transferring signal light
- Patent number 8,867,922
- Issue date Oct 21, 2014
- Fujitsu Limited
- Ichiro Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus and continuity testing method
- Patent number 8,554,071
- Issue date Oct 8, 2013
- Fujitsu Limited
- Takuma Shoji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmitting apparatus and optical multiplexing unit
- Patent number 8,331,787
- Issue date Dec 11, 2012
- Fujitsu Limited
- Takeshi Noma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength division multiplexing transmission device and wavelength...
- Patent number 8,126,331
- Issue date Feb 28, 2012
- Fujitsu Limited
- Ichiro Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus and optical attenuation amount contr...
- Patent number 8,116,626
- Issue date Feb 14, 2012
- Fujitsu Limited
- Tomoaki Takeyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength division multiplex signal monitoring system and waveleng...
- Patent number 8,068,730
- Issue date Nov 29, 2011
- Fujitsu Limited
- Yoshito Kachita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of upgrading optical node, and an optical node apparatus
- Patent number 7,650,072
- Issue date Jan 19, 2010
- Fujitsu Limited
- Miki Onaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of upgrading optical node, and an optical node apparatus
- Patent number 7,522,839
- Issue date Apr 21, 2009
- Fujitsu Limited
- Miki Onaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system
- Patent number 7,336,870
- Issue date Feb 26, 2008
- Fujitsu Limited
- Hiroki Ooi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for switching transmission route, and optical transmission d...
- Patent number 7,286,758
- Issue date Oct 23, 2007
- Fujitsu Limited
- Yuji Shimada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical add/drop device
- Patent number 7,110,674
- Issue date Sep 19, 2006
- Fujitsu Limited
- Ichiro Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission network, optical transmission apparatus, dispe...
- Patent number 6,987,903
- Issue date Jan 17, 2006
- Fujitsu Limited
- Ichiro Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical cross-connect device and system having the device
- Patent number 6,741,811
- Issue date May 25, 2004
- Fujitsu Limited
- Tetsuya Nishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical switch
- Patent number 6,718,081
- Issue date Apr 6, 2004
- Fujitsu Limited
- Ichiro Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical switch changeover controlling method, optical node device a...
- Patent number 6,643,422
- Issue date Nov 4, 2003
- Fujitsu Limited
- Toru Katagiri
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical cross-connect equipment
- Patent number 6,522,803
- Issue date Feb 18, 2003
- Fujitsu Limited
- Ichiro Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical exchanger
- Patent number 6,496,289
- Issue date Dec 17, 2002
- Fujitsu Limited
- Satoshi Kuroyanagi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical wavelength multiplexing system having a redundant configura...
- Patent number 6,433,900
- Issue date Aug 13, 2002
- Fujitsu Limited
- Satoshi Kuroyanagi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical cross connect apparatus and optical network
- Patent number 6,404,940
- Issue date Jun 11, 2002
- Fujitsu Limited
- Isao Tsuyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical switch
- Patent number 6,154,583
- Issue date Nov 28, 2000
- Fujitsu Limited
- Satoshi Kuroyanagi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
WAVELENGTH CONVERSION APPARATUS, OPTICAL PARAMETRIC AMPLIFIER, TRAN...
- Publication number 20190346738
- Publication date Nov 14, 2019
- Fujitsu Limited
- Tomoaki TAKEYAMA
- G02 - OPTICS
Information Patent Application
OPTICAL TRANSMISSION DEVICE, OPTICAL TRANSMISSION SYSTEM, AND OPTIC...
- Publication number 20160381441
- Publication date Dec 29, 2016
- Fujitsu Limited
- Kazuaki Nagamine
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION SYSTEM, OPTICAL TRANSMISSION APPARATUS, AND OP...
- Publication number 20160261368
- Publication date Sep 8, 2016
- Fujitsu Limited
- Taizo MAEDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE, OPTICAL TRANSMISSION SYSTEM, AND OPTIC...
- Publication number 20160241936
- Publication date Aug 18, 2016
- Fujitsu Limited
- Kazuaki Nagamine
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS AND OPTICAL TRANSMISSION CONTROL METHOD
- Publication number 20160094306
- Publication date Mar 31, 2016
- FUJITSU LIMITED
- ICHIRO NAKAJIMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSMISSION SYSTEM, AND OP...
- Publication number 20150280854
- Publication date Oct 1, 2015
- Fujitsu Limited
- Yoshinobu Matsukawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION APPARATUS AND TRANSMISSION SYSTEM
- Publication number 20150207583
- Publication date Jul 23, 2015
- Fujitsu Limited
- ICHIRO NAKAJIMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE AND MONITORING METHOD OF OPTICAL SIGNAL
- Publication number 20150063798
- Publication date Mar 5, 2015
- FUJITSU LIMITED
- Akihiro Mukai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH SELECTIVE SWITCH, VARIABLE DISPERSION COMPENSATOR, OPTIC...
- Publication number 20140348464
- Publication date Nov 27, 2014
- YUJI KAMURA
- G02 - OPTICS
Information Patent Application
OPTICAL TRANSMISSION DEVICE AND OPTICAL TRANSMISSION METHOD
- Publication number 20130034353
- Publication date Feb 7, 2013
- Fujitsu Limited
- Takuma Shoji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS AND CONTINUITY TESTING METHOD
- Publication number 20110182585
- Publication date Jul 28, 2011
- Fujitsu Limited
- Takuma SHOJI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL MONITOR DEVICE
- Publication number 20110081146
- Publication date Apr 7, 2011
- FUJITSU LIMITED
- Ichiro NAKAJIMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH DIVISION MULTIPLEXING TRANSMISSION DEVICE AND WAVELENGTH...
- Publication number 20100150563
- Publication date Jun 17, 2010
- FUITSU LIMITED
- Ichiro NAKAJIMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL WDM TRANSMISSION APPARATUS AND OPTICAL WDM TRANSMISSION METHOD
- Publication number 20100129079
- Publication date May 27, 2010
- FUJITSU LIMITED
- Koji Bato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Control device of node transferring signal light
- Publication number 20100028008
- Publication date Feb 4, 2010
- FUJITSU LIMITED
- Ichiro Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmitting apparatus and optical multiplexing unit
- Publication number 20090310969
- Publication date Dec 17, 2009
- FUJITSU LIMITED
- Takeshi NOMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission apparatus and optical attenuation amount contr...
- Publication number 20090297143
- Publication date Dec 3, 2009
- FUJITSU LIMITED
- Tomoaki Takeyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD OF UPGRADING OPTICAL NODE, AND AN OPTICAL NODE APPARATUS
- Publication number 20090226167
- Publication date Sep 10, 2009
- FUJITSU LIMITED
- Miki Onaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Wavelength division multiplex signal monitoring system and waveleng...
- Publication number 20090041456
- Publication date Feb 12, 2009
- FUJITSU LIMITED
- Yoshito Kachita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission system
- Publication number 20060193554
- Publication date Aug 31, 2006
- FUJITSU LIMITED
- Hiroki Ooi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for switching transmission route, and optical transmission d...
- Publication number 20060188253
- Publication date Aug 24, 2006
- Yuji Shimada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission network, optical transmission apparatus, dispe...
- Publication number 20050175279
- Publication date Aug 11, 2005
- FUJITSU LIMITED
- Ichiro Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical add/drop device
- Publication number 20050175342
- Publication date Aug 11, 2005
- FUJITSU LIMITED
- Ichiro Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Node and wavelength division multiplexing ring network
- Publication number 20040208540
- Publication date Oct 21, 2004
- Ichiro Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical exchanger
- Publication number 20030063347
- Publication date Apr 3, 2003
- FUJITSU LIMITED
- Satoshi Kuroyanagi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical add/drop device
- Publication number 20020159117
- Publication date Oct 31, 2002
- FUJITSU LIMITED
- Ichiro Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical switch
- Publication number 20020122617
- Publication date Sep 5, 2002
- FUJITSU LIMITED
- Ichiro Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical cross-connect device and system having the device
- Publication number 20020063926
- Publication date May 30, 2002
- Tetsuya Nishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical switch changeover controlling method, optical node device a...
- Publication number 20020028035
- Publication date Mar 7, 2002
- Toru Katagiri
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical switch network, optical cross connecting device, and optica...
- Publication number 20020015551
- Publication date Feb 7, 2002
- Isao Tsuyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Ichiro Nakajima

Person

Patents Grantslast 30 patents

Wavelength conversion apparatus, optical parametric amplifier, tran...

Optical transmission system, optical transmission apparatus, and op...

Optical transmission device, optical transmission system, and optic...

Wavelength selective switch, variable dispersion compensator, optic...

Optical transmission apparatus and optical transmission control method

Transmission apparatus and transmission system

Optical transmission device and optical transmission method

Optical transmission device and monitoring method of optical signal

Control device of node transferring signal light

Optical transmission apparatus and continuity testing method

Optical transmitting apparatus and optical multiplexing unit

Wavelength division multiplexing transmission device and wavelength...

Optical transmission apparatus and optical attenuation amount contr...

Wavelength division multiplex signal monitoring system and waveleng...

Method of upgrading optical node, and an optical node apparatus

Method of upgrading optical node, and an optical node apparatus

Optical transmission system

Method for switching transmission route, and optical transmission d...

Optical add/drop device

Optical transmission network, optical transmission apparatus, dispe...

Optical cross-connect device and system having the device

Optical switch

Optical switch changeover controlling method, optical node device a...

Optical cross-connect equipment

Optical exchanger

Optical wavelength multiplexing system having a redundant configura...

Optical cross connect apparatus and optical network

Optical switch

Patents Applicationslast 30 patents

WAVELENGTH CONVERSION APPARATUS, OPTICAL PARAMETRIC AMPLIFIER, TRAN...

OPTICAL TRANSMISSION DEVICE, OPTICAL TRANSMISSION SYSTEM, AND OPTIC...

OPTICAL TRANSMISSION SYSTEM, OPTICAL TRANSMISSION APPARATUS, AND OP...

OPTICAL TRANSMISSION DEVICE, OPTICAL TRANSMISSION SYSTEM, AND OPTIC...

OPTICAL TRANSMISSION APPARATUS AND OPTICAL TRANSMISSION CONTROL METHOD

OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSMISSION SYSTEM, AND OP...

TRANSMISSION APPARATUS AND TRANSMISSION SYSTEM

OPTICAL TRANSMISSION DEVICE AND MONITORING METHOD OF OPTICAL SIGNAL

WAVELENGTH SELECTIVE SWITCH, VARIABLE DISPERSION COMPENSATOR, OPTIC...

OPTICAL TRANSMISSION DEVICE AND OPTICAL TRANSMISSION METHOD

OPTICAL TRANSMISSION APPARATUS AND CONTINUITY TESTING METHOD

OPTICAL MONITOR DEVICE

WAVELENGTH DIVISION MULTIPLEXING TRANSMISSION DEVICE AND WAVELENGTH...

OPTICAL WDM TRANSMISSION APPARATUS AND OPTICAL WDM TRANSMISSION METHOD

Control device of node transferring signal light

Optical transmitting apparatus and optical multiplexing unit

Optical transmission apparatus and optical attenuation amount contr...

METHOD OF UPGRADING OPTICAL NODE, AND AN OPTICAL NODE APPARATUS

Wavelength division multiplex signal monitoring system and waveleng...

Optical transmission system

Method for switching transmission route, and optical transmission d...

Optical transmission network, optical transmission apparatus, dispe...

Optical add/drop device

Node and wavelength division multiplexing ring network

Optical exchanger

Optical add/drop device

Optical switch

Optical cross-connect device and system having the device

Optical switch changeover controlling method, optical node device a...

Optical switch network, optical cross connecting device, and optica...