Shigeki Watanabe

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Wavelength converter and optical transmission device that includes...
- Patent number 11,588,572
- Issue date Feb 21, 2023
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission device, transmission method, and transmission system
- Patent number 11,533,548
- Issue date Dec 20, 2022
- Fujitsu Limited
- Tomohiro Yamauchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength converter and optical transmission device that includes...
- Patent number 11,190,292
- Issue date Nov 30, 2021
- Fujitsu Limited
- Tomoyuki Kato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Transmission apparatus, reception apparatus, and method for estimat...
- Patent number 10,720,992
- Issue date Jul 21, 2020
- Fujitsu Limited
- Takahito Tanimura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength conversion device, control-light generation device, wave...
- Patent number 10,429,721
- Issue date Oct 1, 2019
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Grant
Optical signal-processing apparatus, receiving apparatus, and optic...
- Patent number 10,291,328
- Issue date May 14, 2019
- Fujitsu Limited
- Shigeki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength conversion device, control-light generation device, wave...
- Patent number 10,281,798
- Issue date May 7, 2019
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Grant
Optical-signal processing apparatus, optical transmission method, r...
- Patent number 10,193,629
- Issue date Jan 29, 2019
- Fujitsu Limited
- Shigeki Watanabe
- G02 - OPTICS
Information Patent Grant
Location measurement apparatus, light modulation converter, and lig...
- Patent number 10,193,621
- Issue date Jan 29, 2019
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical add/drop multiplexer and method for adding/dropping optical...
- Patent number 9,929,828
- Issue date Mar 27, 2018
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical frequency shift device and method
- Patent number 9,857,662
- Issue date Jan 2, 2018
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Grant
Relay device and optical network system
- Patent number 9,780,880
- Issue date Oct 3, 2017
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Grant
Optical signal-processing apparatus, receiving apparatus, and optic...
- Patent number 9,692,520
- Issue date Jun 27, 2017
- Fujitsu Limited
- Shigeki Watanabe
- G02 - OPTICS
Information Patent Grant
Optical add-drop multiplexer
- Patent number 9,634,787
- Issue date Apr 25, 2017
- Fujitsu Limited
- Takahito Tanimura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical multiplexing device and method of generating optical OFDM s...
- Patent number 9,602,201
- Issue date Mar 21, 2017
- Fujitsu Limited
- Ryou Okabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical drop device, optical drop method, and optical add device
- Patent number 9,450,699
- Issue date Sep 20, 2016
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical frequency division multiplexer and polarization control method
- Patent number 9,319,170
- Issue date Apr 19, 2016
- Fujitsu Limited
- Ryou Okabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal processing apparatus, transmission apparatus, and op...
- Patent number 9,252,840
- Issue date Feb 2, 2016
- Fujitsu Limited
- Shigeki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical-signal processing apparatus, optical transmission method, r...
- Patent number 9,182,649
- Issue date Nov 10, 2015
- Fujitsu Limited
- Shigeki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal transmitting device, optical signal transmitting met...
- Patent number 9,148,228
- Issue date Sep 29, 2015
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical frequency-division multiplexer, optical communication syste...
- Patent number 9,106,354
- Issue date Aug 11, 2015
- Fujitsu Limited
- Shigeki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical network system, optical multiplexing apparatus, and receivi...
- Patent number 9,106,359
- Issue date Aug 11, 2015
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmitting apparatus, receiving apparatus, optical frequency divi...
- Patent number 9,088,383
- Issue date Jul 21, 2015
- Fujitsu Limited
- Toshiki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system using cross phase modulation
- Patent number 9,077,470
- Issue date Jul 7, 2015
- Fujitsu Limited
- Yutaka Kai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system and control method
- Patent number 9,020,339
- Issue date Apr 28, 2015
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal-processing apparatus, receiving apparatus, and optic...
- Patent number 8,983,296
- Issue date Mar 17, 2015
- Fujitsu Limited
- Shigeki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal processing apparatus, optical receiving apparatus, a...
- Patent number 8,970,946
- Issue date Mar 3, 2015
- Fujitsu Limited
- Shigeki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier and optical amplifying apparatus
- Patent number 8,773,753
- Issue date Jul 8, 2014
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Grant
Optical signal processing apparatus and optical communication system
- Patent number 8,676,059
- Issue date Mar 18, 2014
- Fujitsu Limited
- Shigeki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal processor
- Patent number 8,488,978
- Issue date Jul 16, 2013
- Fujitsu Limited
- Shigeki Watanabe
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
TRANSMISSION DEVICE, TRANSMISSION METHOD, AND TRANSMISSION SYSTEM
- Publication number 20220070555
- Publication date Mar 3, 2022
- Fujitsu Limited
- Tomohiro YAMAUCHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH CONVERTER AND OPTICAL TRANSMISSION DEVICE THAT INCLUDES...
- Publication number 20220060273
- Publication date Feb 24, 2022
- Fujitsu Limited
- Tomoyuki Kato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
WAVELENGTH CONVERSION DEVICE, CONTROL-LIGHT GENERATION DEVICE, WAVE...
- Publication number 20190212631
- Publication date Jul 11, 2019
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Application
WAVELENGTH CONVERTER AND OPTICAL TRANSMISSION DEVICE THAT INCLUDES...
- Publication number 20190109666
- Publication date Apr 11, 2019
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION APPARATUS, RECEPTION APPARATUS, AND METHOD FOR ESTIMAT...
- Publication number 20180375580
- Publication date Dec 27, 2018
- Fujitsu Limited
- Takahito Tanimura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LOCATION MEASUREMENT APPARATUS, LIGHT MODULATION CONVERTER, AND LIG...
- Publication number 20180316422
- Publication date Nov 1, 2018
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH CONVERSION DEVICE, CONTROL-LIGHT GENERATION DEVICE, WAVE...
- Publication number 20180307119
- Publication date Oct 25, 2018
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Application
OPTICAL FREQUENCY SHIFT DEVICE AND METHOD
- Publication number 20170307957
- Publication date Oct 26, 2017
- Fujitsu Limited
- Tomoyuki Kato
- G02 - OPTICS
Information Patent Application
OPTICAL SIGNAL-PROCESSING APPARATUS, RECEIVING APPARATUS, AND OPTIC...
- Publication number 20170264370
- Publication date Sep 14, 2017
- Fujitsu Limited
- Shigeki Watanabe
- G02 - OPTICS
Information Patent Application
OPTICAL MULTIPLEXING DEVICE AND OPTICAL MULTIPLEXING NETWORK SYSTEM
- Publication number 20170250775
- Publication date Aug 31, 2017
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL ADD/DROP MULTIPLEXER AND METHOD FOR ADDING/DROPPING OPTICAL...
- Publication number 20170070313
- Publication date Mar 9, 2017
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL ADD-DROP MULTIPLEXER
- Publication number 20160373206
- Publication date Dec 22, 2016
- Fujitsu Limited
- Takahito Tanimura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL ADD/DROP MULTIPLEXER AND METHOD FOR ADDING/DROPPING OPTICAL...
- Publication number 20160285582
- Publication date Sep 29, 2016
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL-SIGNAL PROCESSING APPARATUS, OPTICAL TRANSMISSION METHOD, R...
- Publication number 20160006508
- Publication date Jan 7, 2016
- Fujitsu Limited
- Shigeki Watanabe
- G02 - OPTICS
Information Patent Application
OPTICAL MULTIPLEXING DEVICE AND METHOD OF GENERATING OPTICAL OFDM S...
- Publication number 20150333827
- Publication date Nov 19, 2015
- Fujitsu Limited
- Ryou OKABE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL SIGNAL-PROCESSING APPARATUS, RECEIVING APPARATUS, AND OPTIC...
- Publication number 20150155947
- Publication date Jun 4, 2015
- Fujitsu Limited
- Shigeki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL DROP DEVICE, OPTICAL DROP METHOD, AND OPTICAL ADD DEVICE
- Publication number 20150139644
- Publication date May 21, 2015
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RELAY DEVICE AND OPTICAL NETWORK SYSTEM
- Publication number 20140269784
- Publication date Sep 18, 2014
- Fujitsu Limited
- Tomoyuki KATO
- G02 - OPTICS
Information Patent Application
OPTICAL SIGNAL PROCESSING APPARATUS, TRANSMISSION APPARATUS, AND OP...
- Publication number 20140233957
- Publication date Aug 21, 2014
- Fujitsu Limited
- Shigeki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL FREQUENCY DIVISION MULTIPLEXER AND POLARIZATION CONTROL METHOD
- Publication number 20140161452
- Publication date Jun 12, 2014
- Fujitsu Limited
- Ryou OKABE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL SIGNAL PROCESSING APPARATUS AND OPTICAL SIGNAL PROCESSING M...
- Publication number 20140147119
- Publication date May 29, 2014
- Fujitsu Limited
- Shigeki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION SYSTEM AND CONTROL METHOD
- Publication number 20140119725
- Publication date May 1, 2014
- Fujitsu Limited
- Tomoyuki KATO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
OPTICAL SIGNAL TRANSMITTING APPARATUS, OPTICAL FREQUENCY DIVISION M...
- Publication number 20140099114
- Publication date Apr 10, 2014
- Fujitsu Limited
- Masato NISHIHARA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMITTING APPARATUS, RECEIVING APPARATUS, OPTICAL FREQUENCY DIVI...
- Publication number 20140099115
- Publication date Apr 10, 2014
- Fujitsu Limited
- Toshiki TANAKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
APPARATUS AND METHOD FOR RECEIVING OPTICAL SIGNAL, AND OPTICAL FREQ...
- Publication number 20140064732
- Publication date Mar 6, 2014
- Fujitsu Limited
- Yutaka KAI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL FREQUENCY-DIVISION MULTIPLEXER, OPTICAL COMMUNICATION SYSTE...
- Publication number 20130272709
- Publication date Oct 17, 2013
- Fujitsu Limited
- Shigeki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION SYSTEM
- Publication number 20130266320
- Publication date Oct 10, 2013
- Fujitsu Limited
- Yutaka KAI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL SIGNAL TRANSMITTING DEVICE, OPTICAL SIGNAL TRANSMITTING MET...
- Publication number 20130223842
- Publication date Aug 29, 2013
- Fujitsu Limited
- Tomoyuki Kato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL RECEPTION APPARATUS AND OPTICAL NETWORK SYSTEM
- Publication number 20130084072
- Publication date Apr 4, 2013
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL MULTIPLEXING APPARATUS AND OPTICAL NETWORK SYSTEM
- Publication number 20130051803
- Publication date Feb 28, 2013
- Fujitsu Limited
- Tomoyuki Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Shigeki Watanabe

Person

Patents Grantslast 30 patents

Wavelength converter and optical transmission device that includes...

Transmission device, transmission method, and transmission system

Wavelength converter and optical transmission device that includes...

Transmission apparatus, reception apparatus, and method for estimat...

Wavelength conversion device, control-light generation device, wave...

Optical signal-processing apparatus, receiving apparatus, and optic...

Wavelength conversion device, control-light generation device, wave...

Optical-signal processing apparatus, optical transmission method, r...

Location measurement apparatus, light modulation converter, and lig...

Optical add/drop multiplexer and method for adding/dropping optical...

Optical frequency shift device and method

Relay device and optical network system

Optical signal-processing apparatus, receiving apparatus, and optic...

Optical add-drop multiplexer

Optical multiplexing device and method of generating optical OFDM s...

Optical drop device, optical drop method, and optical add device

Optical frequency division multiplexer and polarization control method

Optical signal processing apparatus, transmission apparatus, and op...

Optical-signal processing apparatus, optical transmission method, r...

Optical signal transmitting device, optical signal transmitting met...

Optical frequency-division multiplexer, optical communication syste...

Optical network system, optical multiplexing apparatus, and receivi...

Transmitting apparatus, receiving apparatus, optical frequency divi...

Optical transmission system using cross phase modulation

Optical transmission system and control method

Optical signal-processing apparatus, receiving apparatus, and optic...

Optical signal processing apparatus, optical receiving apparatus, a...

Optical amplifier and optical amplifying apparatus

Optical signal processing apparatus and optical communication system

Optical signal processor

Patents Applicationslast 30 patents

TRANSMISSION DEVICE, TRANSMISSION METHOD, AND TRANSMISSION SYSTEM

WAVELENGTH CONVERTER AND OPTICAL TRANSMISSION DEVICE THAT INCLUDES...

WAVELENGTH CONVERSION DEVICE, CONTROL-LIGHT GENERATION DEVICE, WAVE...

WAVELENGTH CONVERTER AND OPTICAL TRANSMISSION DEVICE THAT INCLUDES...

TRANSMISSION APPARATUS, RECEPTION APPARATUS, AND METHOD FOR ESTIMAT...

LOCATION MEASUREMENT APPARATUS, LIGHT MODULATION CONVERTER, AND LIG...

WAVELENGTH CONVERSION DEVICE, CONTROL-LIGHT GENERATION DEVICE, WAVE...

OPTICAL FREQUENCY SHIFT DEVICE AND METHOD

OPTICAL SIGNAL-PROCESSING APPARATUS, RECEIVING APPARATUS, AND OPTIC...

OPTICAL MULTIPLEXING DEVICE AND OPTICAL MULTIPLEXING NETWORK SYSTEM

OPTICAL ADD/DROP MULTIPLEXER AND METHOD FOR ADDING/DROPPING OPTICAL...

OPTICAL ADD-DROP MULTIPLEXER

OPTICAL ADD/DROP MULTIPLEXER AND METHOD FOR ADDING/DROPPING OPTICAL...

OPTICAL-SIGNAL PROCESSING APPARATUS, OPTICAL TRANSMISSION METHOD, R...

OPTICAL MULTIPLEXING DEVICE AND METHOD OF GENERATING OPTICAL OFDM S...

OPTICAL SIGNAL-PROCESSING APPARATUS, RECEIVING APPARATUS, AND OPTIC...

OPTICAL DROP DEVICE, OPTICAL DROP METHOD, AND OPTICAL ADD DEVICE

RELAY DEVICE AND OPTICAL NETWORK SYSTEM

OPTICAL SIGNAL PROCESSING APPARATUS, TRANSMISSION APPARATUS, AND OP...

OPTICAL FREQUENCY DIVISION MULTIPLEXER AND POLARIZATION CONTROL METHOD

OPTICAL SIGNAL PROCESSING APPARATUS AND OPTICAL SIGNAL PROCESSING M...

OPTICAL TRANSMISSION SYSTEM AND CONTROL METHOD

OPTICAL SIGNAL TRANSMITTING APPARATUS, OPTICAL FREQUENCY DIVISION M...

TRANSMITTING APPARATUS, RECEIVING APPARATUS, OPTICAL FREQUENCY DIVI...

APPARATUS AND METHOD FOR RECEIVING OPTICAL SIGNAL, AND OPTICAL FREQ...

OPTICAL FREQUENCY-DIVISION MULTIPLEXER, OPTICAL COMMUNICATION SYSTE...

OPTICAL TRANSMISSION SYSTEM

OPTICAL SIGNAL TRANSMITTING DEVICE, OPTICAL SIGNAL TRANSMITTING MET...

OPTICAL RECEPTION APPARATUS AND OPTICAL NETWORK SYSTEM

OPTICAL MULTIPLEXING APPARATUS AND OPTICAL NETWORK SYSTEM