GOJI NAKAGAWA

Person

Sagamihara, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical transmission device, optical transmission system, and optic...
- Patent number 11,968,033
- Issue date Apr 23, 2024
- Fujitsu Limited
- Tomohiro Yamauchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system and fiber type determination method
- Patent number 11,876,559
- Issue date Jan 16, 2024
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength converter and fiber optic transmission system
- Patent number 11,387,912
- Issue date Jul 12, 2022
- Fujitsu Limited
- Goji Nakagawa
- G02 - OPTICS
Information Patent Grant
Wavelength conversion device and method of performing wavelength co...
- Patent number 11,163,119
- Issue date Nov 2, 2021
- Fujitsu Limited
- Tomohiro Yamauchi
- G02 - OPTICS
Information Patent Grant
Wavelength converter and transmission apparatus
- Patent number 10,955,727
- Issue date Mar 23, 2021
- Fujitsu Limited
- Goji Nakagawa
- G02 - OPTICS
Information Patent Grant
Wavelength converter apparatus and method of performing wavelength...
- Patent number 10,948,802
- Issue date Mar 16, 2021
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus, optical transmission system, and op...
- Patent number 10,797,799
- Issue date Oct 6, 2020
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission device, optical termination device, transmission syste...
- Patent number 10,763,986
- Issue date Sep 1, 2020
- Fujitsu Limited
- Kyosuke Sone
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical terminal device, optical terminating device, and communicat...
- Patent number 10,567,082
- Issue date Feb 18, 2020
- Fujitsu Limited
- Kyosuke Sone
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission apparatus, transmission system and data detection method
- Patent number 10,268,227
- Issue date Apr 23, 2019
- Fujitsu Limited
- Goji Nakagawa
- G05 - CONTROLLING REGULATING
Information Patent Grant
Optical transmitting apparatus and optical level control method
- Patent number 10,261,350
- Issue date Apr 16, 2019
- Fujitsu Limited
- Goji Nakagawa
- G02 - OPTICS
Information Patent Grant
Optical communication system, transmission station, and method of o...
- Patent number 10,200,132
- Issue date Feb 5, 2019
- Fujitsu Limited
- Kyosuke Sone
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transport apparatus and optical-wavelength defragmenting me...
- Patent number 10,187,172
- Issue date Jan 22, 2019
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for estimating optical transmission performance
- Patent number 10,158,422
- Issue date Dec 18, 2018
- Fujitsu Limited
- Shoichiro Oda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication system, optical receiver and optical transmitter
- Patent number 10,069,567
- Issue date Sep 4, 2018
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical receiver and superimposed signal detecting method
- Patent number 9,838,148
- Issue date Dec 5, 2017
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication device and wavelength adjustment method
- Patent number 9,705,604
- Issue date Jul 11, 2017
- Fujitsu Limited
- Kyosuke Sone
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical receiver that has function to detect signal superimposed on...
- Patent number 9,698,929
- Issue date Jul 4, 2017
- Fujitsu Limited
- Setsuo Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device and method for monitoring optical signal quality, and optica...
- Patent number 9,496,953
- Issue date Nov 15, 2016
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission device and optical transmission system
- Patent number 9,444,573
- Issue date Sep 13, 2016
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for monitoring wavelength tunable optical filter
- Patent number 9,350,479
- Issue date May 24, 2016
- Fujitsu Limited
- Kyosuke Sone
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal demodulator, optical signal demodulating method, and...
- Patent number 9,143,242
- Issue date Sep 22, 2015
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplification apparatus
- Patent number 9,019,593
- Issue date Apr 28, 2015
- Fujitsu Limited
- Setsuo Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical receiving device and communication system
- Patent number 8,942,567
- Issue date Jan 27, 2015
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifying device
- Patent number 8,896,914
- Issue date Nov 25, 2014
- Fujitsu Limited
- Goji Nakagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wavelength-tunable light source and wavelength variation method
- Patent number 8,861,557
- Issue date Oct 14, 2014
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical coupling structure and array optical amplification module
- Patent number 8,757,898
- Issue date Jun 24, 2014
- Fujitsu Limited
- Goji Nakagawa
- G02 - OPTICS
Information Patent Grant
Optical amplification module and optical switch device
- Patent number 8,654,440
- Issue date Feb 18, 2014
- Fujitsu Limited
- Goji Nakagawa
- G02 - OPTICS
Information Patent Grant
Optical module
- Patent number 8,437,589
- Issue date May 7, 2013
- Fujitsu Limited
- Goji Nakagawa
- G02 - OPTICS
Information Patent Grant
Optical gate array device
- Patent number 8,014,642
- Issue date Sep 6, 2011
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL TRANSMISSION DEVICE, OPTICAL TRANSMISSION SYSTEM, AND OPTIC...
- Publication number 20240405868
- Publication date Dec 5, 2024
- Fujitsu Limited
- GOJI NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FORWARD RAMAN AMPLIFIER, BIDIRECTIONAL RAMAN AMPLIFICATION SYSTEM,...
- Publication number 20240129034
- Publication date Apr 18, 2024
- Fujitsu Limited
- Hiroshi NAKAMOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
RAMAN AMPLIFIER, RAMAN AMPLIFICATION METHOD, AND RAMAN AMPLIFICATIO...
- Publication number 20230142798
- Publication date May 11, 2023
- Fujitsu Limited
- GOJI NAKAGAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL TRANSMISSION SYSTEM AND FIBER TYPE DETERMINATION METHOD
- Publication number 20220385364
- Publication date Dec 1, 2022
- Fujitsu Limited
- GOJI NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE, OPTICAL TRANSMISSION SYSTEM, AND OPTIC...
- Publication number 20220368448
- Publication date Nov 17, 2022
- Fujitsu Limited
- Tomohiro YAMAUCHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH CONVERTER AND FIBER OPTIC TRANSMISSION SYSTEM
- Publication number 20220158741
- Publication date May 19, 2022
- Fujitsu Limited
- Goji NAKAGAWA
- G02 - OPTICS
Information Patent Application
WAVELENGTH CONVERTER, OPTICAL COMMUNICATION SYSTEM, AND METHOD FOR...
- Publication number 20210103200
- Publication date Apr 8, 2021
- Fujitsu Limited
- GOJI NAKAGAWA
- G02 - OPTICS
Information Patent Application
WAVELENGTH CONVERSION DEVICE AND METHOD OF PERFORMING WAVELENGTH CO...
- Publication number 20200379180
- Publication date Dec 3, 2020
- FUJITSU LIMITED, Kawasaki-shi, JAPAN;
- Tomohiro YAMAUCHI
- G02 - OPTICS
Information Patent Application
WAVELENGTH CONVERTER AND TRANSMISSION APPARATUS
- Publication number 20200264492
- Publication date Aug 20, 2020
- Fujitsu Limited
- GOJI NAKAGAWA
- G02 - OPTICS
Information Patent Application
WAVELENGTH CONVERTER AND METHOD OF PERFORMING WAVELENGTH CONVERSION
- Publication number 20200241384
- Publication date Jul 30, 2020
- Fujitsu Limited
- GOJI NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION DEVICE, OPTICAL TERMINATION DEVICE, TRANSMISSION SYSTE...
- Publication number 20200052807
- Publication date Feb 13, 2020
- Fujitsu Limited
- Kyosuke SONE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSMISSION SYSTEM, AND OP...
- Publication number 20190165865
- Publication date May 30, 2019
- Fujitsu Limited
- GOJI NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TERMINAL DEVICE, OPTICAL TERMINATING DEVICE, AND COMMUNICAT...
- Publication number 20180359032
- Publication date Dec 13, 2018
- Fujitsu Limited
- Kyosuke SONE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMITTING APPARATUS AND OPTICAL LEVEL CONTROL METHOD
- Publication number 20180180909
- Publication date Jun 28, 2018
- Fujitsu Limited
- Goji NAKAGAWA
- G02 - OPTICS
Information Patent Application
TRANSMISSION APPARATUS, TRANSMISSION SYSTEM AND DATA DETECTION METHOD
- Publication number 20180074539
- Publication date Mar 15, 2018
- Fujitsu Limited
- GOJI NAKAGAWA
- G02 - OPTICS
Information Patent Application
APPARATUS AND METHOD FOR ESTIMATING OPTICAL TRANSMISSION PERFORMANCE
- Publication number 20170310391
- Publication date Oct 26, 2017
- Fujitsu Limited
- Shoichiro Oda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL COMMUNICATION SYSTEM, TRANSMISSION STATION, AND METHOD OF O...
- Publication number 20170279538
- Publication date Sep 28, 2017
- Fujitsu Limited
- Kyosuke Sone
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSPORT APPARATUS AND OPTICAL-WAVELENGTH DEFRAGMENTING ME...
- Publication number 20170279556
- Publication date Sep 28, 2017
- FUJITSU LIMITED
- GOJI NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE AND OPTICAL TRANSMISSION SYSTEM
- Publication number 20170155981
- Publication date Jun 1, 2017
- Fujitsu Limited
- GOJI NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS, NETWORK CONTROL APPARATUS, AND OPTI...
- Publication number 20170149497
- Publication date May 25, 2017
- Fujitsu Limited
- Tomohiro YAMAUCHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL COMMUNICATION SYSTEM, OPTICAL RECEIVER AND OPTICAL TRANSMITTER
- Publication number 20170041075
- Publication date Feb 9, 2017
- Fujitsu Limited
- GOJI NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL RECEIVER AND SUPERIMPOSED SIGNAL DETECTING METHOD
- Publication number 20160337070
- Publication date Nov 17, 2016
- Fujitsu Limited
- GOJI NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMMUNICATION DEVICE AND WAVELENGTH ADJUSTMENT METHOD
- Publication number 20160294479
- Publication date Oct 6, 2016
- Fujitsu Limited
- Kyosuke Sone
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL RECEIVER THAT HAS FUNCTION TO DETECT SIGNAL SUPERIMPOSED ON...
- Publication number 20160277139
- Publication date Sep 22, 2016
- Fujitsu Limited
- Setsuo Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION DEVICE AND OPTICAL TRANSMISSION SYSTEM
- Publication number 20150280852
- Publication date Oct 1, 2015
- Fujitsu Limited
- GOJI NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DEVICE AND METHOD FOR MONITORING OPTICAL SIGNAL QUALITY, AND OPTICA...
- Publication number 20150155934
- Publication date Jun 4, 2015
- FUJITSU LIMITED
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL SIGNAL DEMODULATOR, OPTICAL SIGNAL DEMODULATING METHOD, AND...
- Publication number 20140270781
- Publication date Sep 18, 2014
- Fujitsu Limited
- GOJI NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
APPARATUS AND METHOD FOR MONITORING WAVELENGTH TUNABLE OPTICAL FILTER
- Publication number 20140205281
- Publication date Jul 24, 2014
- Fujitsu Limited
- Kyosuke SONE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH-TUNABLE LIGHT SOURCE AND WAVELENGTH VARIATION METHOD
- Publication number 20140098828
- Publication date Apr 10, 2014
- Fujitsu Limited
- GOJI NAKAGAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL COUPLING STRUCTURE AND ARRAY OPTICAL AMPLIFICATION MODULE
- Publication number 20130236143
- Publication date Sep 12, 2013
- Fujitsu Limited
- Goji NAKAGAWA
- G02 - OPTICS

GOJI NAKAGAWA

Person

Patents Grantslast 30 patents

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

Optical transmission system and fiber type determination method

Wavelength converter and fiber optic transmission system

Wavelength conversion device and method of performing wavelength co...

Wavelength converter and transmission apparatus

Wavelength converter apparatus and method of performing wavelength...

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

Transmission device, optical termination device, transmission syste...

Optical terminal device, optical terminating device, and communicat...

Transmission apparatus, transmission system and data detection method

Optical transmitting apparatus and optical level control method

Optical communication system, transmission station, and method of o...

Optical transport apparatus and optical-wavelength defragmenting me...

Apparatus and method for estimating optical transmission performance

Optical communication system, optical receiver and optical transmitter

Optical receiver and superimposed signal detecting method

Communication device and wavelength adjustment method

Optical receiver that has function to detect signal superimposed on...

Device and method for monitoring optical signal quality, and optica...

Transmission device and optical transmission system

Apparatus and method for monitoring wavelength tunable optical filter

Optical signal demodulator, optical signal demodulating method, and...

Optical amplification apparatus

Optical receiving device and communication system

Optical amplifying device

Wavelength-tunable light source and wavelength variation method

Optical coupling structure and array optical amplification module

Optical amplification module and optical switch device

Optical module

Optical gate array device

Patents Applicationslast 30 patents

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

FORWARD RAMAN AMPLIFIER, BIDIRECTIONAL RAMAN AMPLIFICATION SYSTEM,...

RAMAN AMPLIFIER, RAMAN AMPLIFICATION METHOD, AND RAMAN AMPLIFICATIO...

OPTICAL TRANSMISSION SYSTEM AND FIBER TYPE DETERMINATION METHOD

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

WAVELENGTH CONVERTER AND FIBER OPTIC TRANSMISSION SYSTEM

WAVELENGTH CONVERTER, OPTICAL COMMUNICATION SYSTEM, AND METHOD FOR...

WAVELENGTH CONVERSION DEVICE AND METHOD OF PERFORMING WAVELENGTH CO...

WAVELENGTH CONVERTER AND TRANSMISSION APPARATUS

WAVELENGTH CONVERTER AND METHOD OF PERFORMING WAVELENGTH CONVERSION

TRANSMISSION DEVICE, OPTICAL TERMINATION DEVICE, TRANSMISSION SYSTE...

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

OPTICAL TERMINAL DEVICE, OPTICAL TERMINATING DEVICE, AND COMMUNICAT...

OPTICAL TRANSMITTING APPARATUS AND OPTICAL LEVEL CONTROL METHOD

TRANSMISSION APPARATUS, TRANSMISSION SYSTEM AND DATA DETECTION METHOD

APPARATUS AND METHOD FOR ESTIMATING OPTICAL TRANSMISSION PERFORMANCE

OPTICAL COMMUNICATION SYSTEM, TRANSMISSION STATION, AND METHOD OF O...

OPTICAL TRANSPORT APPARATUS AND OPTICAL-WAVELENGTH DEFRAGMENTING ME...

OPTICAL TRANSMISSION DEVICE AND OPTICAL TRANSMISSION SYSTEM

OPTICAL TRANSMISSION APPARATUS, NETWORK CONTROL APPARATUS, AND OPTI...

OPTICAL COMMUNICATION SYSTEM, OPTICAL RECEIVER AND OPTICAL TRANSMITTER

OPTICAL RECEIVER AND SUPERIMPOSED SIGNAL DETECTING METHOD

COMMUNICATION DEVICE AND WAVELENGTH ADJUSTMENT METHOD

OPTICAL RECEIVER THAT HAS FUNCTION TO DETECT SIGNAL SUPERIMPOSED ON...

TRANSMISSION DEVICE AND OPTICAL TRANSMISSION SYSTEM

DEVICE AND METHOD FOR MONITORING OPTICAL SIGNAL QUALITY, AND OPTICA...

OPTICAL SIGNAL DEMODULATOR, OPTICAL SIGNAL DEMODULATING METHOD, AND...

APPARATUS AND METHOD FOR MONITORING WAVELENGTH TUNABLE OPTICAL FILTER

WAVELENGTH-TUNABLE LIGHT SOURCE AND WAVELENGTH VARIATION METHOD

OPTICAL COUPLING STRUCTURE AND ARRAY OPTICAL AMPLIFICATION MODULE