Masahito TOMIZAWA

Person

Yokosuka-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Transmission apparatus, transmission system and delay adjustment me...
- Patent number 12,170,607
- Issue date Dec 17, 2024
- Nippon Telegraph and Telephone Corporation
- Kei Kitamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission apparatus and transmission system
- Patent number 11,923,862
- Issue date Mar 5, 2024
- Nippon Telegraph and Telephone Corporation
- Fumikazu Inuzuka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Transmission apparatus and transmission method
- Patent number 11,916,685
- Issue date Feb 27, 2024
- Nippon Telegraph and Telephone Corporation
- Kei Kitamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength dispersion compensation apparatus, optical receiving app...
- Patent number 11,683,093
- Issue date Jun 20, 2023
- Nippon Telegraph and Telephone Corporation
- Masanori Nakamura
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Signal processing apparatus and signal processing method
- Patent number 11,671,119
- Issue date Jun 6, 2023
- Nippon Telegraph and Telephone Corporation
- Seiji Okamoto
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Error correction device, error correction method, and optical commu...
- Patent number 11,329,764
- Issue date May 10, 2022
- NTT Electronics Corporation
- Fumiaki Nakagawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Frame synchronization apparatus, optical communication apparatus, a...
- Patent number 11,323,238
- Issue date May 3, 2022
- NTT Electronics Corporation
- Mitsuteru Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frame synchronization apparatus, optical communication apparatus, a...
- Patent number 11,201,721
- Issue date Dec 14, 2021
- NTT Electronics Corporation
- Mitsuteru Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Error correction device, error correction method, and communication...
- Patent number 10,880,193
- Issue date Dec 29, 2020
- NTT Electronics Corporation
- Mitsuteru Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Chromatic dispersion compensation device, chromatic dispersion comp...
- Patent number 10,868,617
- Issue date Dec 15, 2020
- NTT Electronics Corporation
- Mitsuteru Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission characteristic compensation apparatus, transmission ch...
- Patent number 10,608,743
- Issue date Mar 31, 2020
- NTT Electronics Corporation
- Tomohiro Takamuku
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Known signal detection method
- Patent number 10,523,335
- Issue date Dec 31, 2019
- NTT Electronics Corporation
- Yasuharu Onuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Phase compensation device, phase compensation method and communicat...
- Patent number 10,419,127
- Issue date Sep 17, 2019
- NTT Electronics Corporation
- Etsushi Yamazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission distortion compensation device, optical transm...
- Patent number 10,374,718
- Issue date Aug 6, 2019
- NTT Electronics Corporation
- Yasuharu Onuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data phase tracking device, data phase tracking method and communic...
- Patent number 10,305,675
- Issue date May 28, 2019
- NTT Electronics Corporation
- Yasuharu Onuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal transmission apparatus and optical signal transmissi...
- Patent number 10,171,173
- Issue date Jan 1, 2019
- Nippon Telegraph and Telephone Corporation
- Seiji Okamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data processor, data processing method and communication device
- Patent number 10,128,818
- Issue date Nov 13, 2018
- NTT Electronics Corporation
- Yasuharu Onuma
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digital signal processing device and optical transceiver apparatus
- Patent number 10,122,465
- Issue date Nov 6, 2018
- NTT Electronics Corporation
- Osamu Ishida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transport apparatus and transport method
- Patent number 10,122,462
- Issue date Nov 6, 2018
- Nippon Telegraph and Telephone Corporation
- Takuya Ohara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system, phase compensation method, and optical...
- Patent number 10,038,507
- Issue date Jul 31, 2018
- Nippon Telegraph and Telephone Corporation
- Mitsuteru Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission/reception system, transmitter, receiver, and o...
- Patent number 9,698,932
- Issue date Jul 4, 2017
- Nippon Telegraph and Telephone Corporation
- Yoshiaki Kisaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical receiving device and phase cycle reduction method
- Patent number 9,667,350
- Issue date May 30, 2017
- Nippon Telegraph and Telephone Corporation
- Kengo Horikoshi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Coherent communication system, communication method, and transmissi...
- Patent number 9,621,299
- Issue date Apr 11, 2017
- Nippon Telegraph and Telephone Corporation
- Koichi Ishihara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Client signal mapping circuit and mapping method
- Patent number 9,438,365
- Issue date Sep 6, 2016
- Nippon Telegraph and Telephone Corporation
- Masahiro Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for estimating amount of wavelength dispersion, wavelength d...
- Patent number 9,178,614
- Issue date Nov 3, 2015
- Nippon Telegraph and Telephone Corporation
- Etsushi Yamazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Client signal mapping circuit and mapping method
- Patent number 9,160,479
- Issue date Oct 13, 2015
- Nippon Telegraph and Telephone Corporation
- Masahiro Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Client signal accommodating multiplexing apparatus and method
- Patent number 8,977,120
- Issue date Mar 10, 2015
- Nippon Telegraph and Telephone Corporation
- Takuya Ohara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength dispersion amount estimation method, wavelength dispersi...
- Patent number 8,971,703
- Issue date Mar 3, 2015
- Nippon Telegraph and Telephone Corporation
- Etsushi Yamazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical digital transmission system
- Patent number 8,571,037
- Issue date Oct 29, 2013
- Nippon Telegraph and Telephone Corporation
- Shigeki Aisawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital transmission system and digital transmission method
- Patent number 8,514,881
- Issue date Aug 20, 2013
- Nippon Telegraph and Telephone Corporation
- Yoshiaki Kisaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
WAVELENGTH DISPERSION COMPENSATION APPARATUS, OPTICAL RECEIVING APP...
- Publication number 20220224415
- Publication date Jul 14, 2022
- Nippon Telegraph and Telephone Corporation
- Masanori NAKAMURA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
TRANSMISSION APPARATUS AND TRANSMISSION SYSTEM
- Publication number 20220109449
- Publication date Apr 7, 2022
- Nippon Telegraph and Telephone Corporation
- Fumikazu INUZUKA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
TRANSMISSION APPARATUS AND TRANSMISSION METHOD
- Publication number 20220006577
- Publication date Jan 6, 2022
- Kei Kitamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION APPARATUS, TRANSMISSION SYSTEM AND DELAY ADJUSTMENT ME...
- Publication number 20220006722
- Publication date Jan 6, 2022
- Nippon Telegraph and Telephone Corporation
- Kei KITAMURA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FRAME SYNCHRONIZATION APPARATUS, OPTICAL COMMUNICATION APPARATUS, A...
- Publication number 20210273777
- Publication date Sep 2, 2021
- NTT ELECTRONICS CORPORATION
- Mitsuteru YOSHIDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SIGNAL PROCESSING APPARATUS AND SIGNAL PROCESSING METHOD
- Publication number 20210203363
- Publication date Jul 1, 2021
- Nippon Telegraph and Telephone Corporation
- Seiji OKAMOTO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FRAME SYNCHRONIZATION APPARATUS, OPTICAL COMMUNICATION APPARATUS, A...
- Publication number 20210167939
- Publication date Jun 3, 2021
- NTT Electronics Corporation
- Mitsuteru YOSHIDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ERROR CORRECTION DEVICE, ERROR CORRECTION METHOD, AND OPTICAL COMMU...
- Publication number 20210075541
- Publication date Mar 11, 2021
- NTT ELECTRONICS CORPORATION
- Fumiaki NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CHROMATIC DISPERSION COMPENSATION DEVICE, CHROMATIC DISPERSION COMP...
- Publication number 20200067598
- Publication date Feb 27, 2020
- NTT ELECTRONICS CORPORATION
- Mitsuteru YOSHIDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ERROR CORRECTION DEVICE, ERROR CORRECTION METHOD, AND COMMUNICATION...
- Publication number 20200028767
- Publication date Jan 23, 2020
- NTT ELECTRONICS CORPORATION
- Mitsuteru YOSHIDA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
KNOWN SIGNAL DETECTION METHOD
- Publication number 20190165868
- Publication date May 30, 2019
- NTT ELECTRONICS CORPORATION
- Yasuharu ONUMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DISTORTION COMPENSATION DEVICE, OPTICAL TRANSM...
- Publication number 20190132051
- Publication date May 2, 2019
- NTT ELECTRONICS CORPORATION
- Yasuharu ONUMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION CHARACTERISTIC COMPENSATION APPARATUS, TRANSMISSION CH...
- Publication number 20190074903
- Publication date Mar 7, 2019
- NTT ELECTRONICS CORPORATION
- Tomohiro TAKAMUKU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PHASE COMPENSATION DEVICE, PHASE COMPENSATION METHOD AND COMMUNICAT...
- Publication number 20190074909
- Publication date Mar 7, 2019
- NTT ELECTRONICS CORPORATION
- Etsushi YAMAZAKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DATA PHASE TRACKING DEVICE, DATA PHASE TRACKING METHOD AND COMMUNIC...
- Publication number 20180302211
- Publication date Oct 18, 2018
- NTT ELECTRONICS CORPORATION
- Yasuharu ONUMA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
DATA PROCESSOR, DATA PROCESSING METHOD AND COMMUNICATION DEVICE
- Publication number 20180175830
- Publication date Jun 21, 2018
- NTT ELECTRONICS CORPORATION
- Yasuharu ONUMA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
DIGITAL SIGNAL PROCESSING DEVICE AND OPTICAL TRANSCEIVER APPARATUS
- Publication number 20180152247
- Publication date May 31, 2018
- NTT ELECTRONICS CORPORATION
- Osamu ISHIDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSPORT APPARATUS AND TRANSPORT METHOD
- Publication number 20170111116
- Publication date Apr 20, 2017
- Nippon Telegraph and Telephone Corporation
- Takuya OHARA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL SIGNAL TRANSMISSION APPARATUS AND OPTICAL SIGNAL TRANSMISSI...
- Publication number 20170070296
- Publication date Mar 9, 2017
- Nippon Telegraph and Telephone Corporation
- Seiji OKAMOTO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION/RECEPTION SYSTEM, TRANSMITTER, RECEIVER, AND O...
- Publication number 20160065326
- Publication date Mar 3, 2016
- Nippon Telegraph and Telephone Corporation
- Yoshiaki KISAKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CLIENT SIGNAL MAPPING CIRCUIT AND MAPPING METHOD
- Publication number 20160006525
- Publication date Jan 7, 2016
- Nippon Telegraph and Telephone Corporation
- Masahiro SUZUKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION SYSTEM, PHASE COMPENSATION METHOD, AND OPTICAL...
- Publication number 20150372766
- Publication date Dec 24, 2015
- Nippon Telegraph and Telephone Corporation
- Mitsuteru YOSHIDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COHERENT COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND TRANSMISSI...
- Publication number 20150341138
- Publication date Nov 26, 2015
- Nippon Telegraph and Telephone Corporation
- Koichi ISHIHARA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL RECEIVING DEVICE AND PHASE CYCLE REDUCTION METHOD
- Publication number 20150333838
- Publication date Nov 19, 2015
- Nippon Telegraph and Telephone Corporation
- Kengo HORIKOSHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD FOR ESTIMATING AMOUNT OF WAVELENGTH DISPERSION, WAVELENGTH D...
- Publication number 20140016929
- Publication date Jan 16, 2014
- Nippon Telegraph and Telephone Corporation
- Etsushi Yamazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH DISPERSION AMOUNT ESTIMATION METHOD, WAVELENGTH DISPERSI...
- Publication number 20130343749
- Publication date Dec 26, 2013
- Etsushi Yamazaki
- G01 - MEASURING TESTING
Information Patent Application
CLIENT SIGNAL MAPPING CIRCUIT AND MAPPING METHOD
- Publication number 20130259481
- Publication date Oct 3, 2013
- Nippon Telegraph and Telephone Corporation
- Masahiro Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CLIENT SIGNAL ACCOMMODATING MULTIPLEXING APPARATUS AND METHOD
- Publication number 20130004168
- Publication date Jan 3, 2013
- Fujitsu Limited
- Takuya Ohara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL DIGITAL TRANSMISSION SYSTEM
- Publication number 20110262136
- Publication date Oct 27, 2011
- NTT ELECTRONICS CORPORATION
- Shigeki Aisawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MULTIPLEXING TRANSMISSION SYSTEM AND MULTIPLEXING TRANSMISSION METHOD
- Publication number 20100177785
- Publication date Jul 15, 2010
- Nippon Telegraph and Telephone Corporation
- Yoshiaki Kisaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Masahito TOMIZAWA

Person

Patents Grantslast 30 patents

Transmission apparatus, transmission system and delay adjustment me...

Transmission apparatus and transmission system

Transmission apparatus and transmission method

Wavelength dispersion compensation apparatus, optical receiving app...

Signal processing apparatus and signal processing method

Error correction device, error correction method, and optical commu...

Frame synchronization apparatus, optical communication apparatus, a...

Frame synchronization apparatus, optical communication apparatus, a...

Error correction device, error correction method, and communication...

Chromatic dispersion compensation device, chromatic dispersion comp...

Transmission characteristic compensation apparatus, transmission ch...

Known signal detection method

Phase compensation device, phase compensation method and communicat...

Optical transmission distortion compensation device, optical transm...

Data phase tracking device, data phase tracking method and communic...

Optical signal transmission apparatus and optical signal transmissi...

Data processor, data processing method and communication device

Digital signal processing device and optical transceiver apparatus

Transport apparatus and transport method

Optical transmission system, phase compensation method, and optical...

Optical transmission/reception system, transmitter, receiver, and o...

Optical receiving device and phase cycle reduction method

Coherent communication system, communication method, and transmissi...

Client signal mapping circuit and mapping method

Method for estimating amount of wavelength dispersion, wavelength d...

Client signal mapping circuit and mapping method

Client signal accommodating multiplexing apparatus and method

Wavelength dispersion amount estimation method, wavelength dispersi...

Optical digital transmission system

Digital transmission system and digital transmission method

Patents Applicationslast 30 patents

WAVELENGTH DISPERSION COMPENSATION APPARATUS, OPTICAL RECEIVING APP...

TRANSMISSION APPARATUS AND TRANSMISSION SYSTEM

TRANSMISSION APPARATUS AND TRANSMISSION METHOD

TRANSMISSION APPARATUS, TRANSMISSION SYSTEM AND DELAY ADJUSTMENT ME...

FRAME SYNCHRONIZATION APPARATUS, OPTICAL COMMUNICATION APPARATUS, A...

SIGNAL PROCESSING APPARATUS AND SIGNAL PROCESSING METHOD

FRAME SYNCHRONIZATION APPARATUS, OPTICAL COMMUNICATION APPARATUS, A...

ERROR CORRECTION DEVICE, ERROR CORRECTION METHOD, AND OPTICAL COMMU...

CHROMATIC DISPERSION COMPENSATION DEVICE, CHROMATIC DISPERSION COMP...

ERROR CORRECTION DEVICE, ERROR CORRECTION METHOD, AND COMMUNICATION...

KNOWN SIGNAL DETECTION METHOD

OPTICAL TRANSMISSION DISTORTION COMPENSATION DEVICE, OPTICAL TRANSM...

TRANSMISSION CHARACTERISTIC COMPENSATION APPARATUS, TRANSMISSION CH...

PHASE COMPENSATION DEVICE, PHASE COMPENSATION METHOD AND COMMUNICAT...

DATA PHASE TRACKING DEVICE, DATA PHASE TRACKING METHOD AND COMMUNIC...

DATA PROCESSOR, DATA PROCESSING METHOD AND COMMUNICATION DEVICE

DIGITAL SIGNAL PROCESSING DEVICE AND OPTICAL TRANSCEIVER APPARATUS

TRANSPORT APPARATUS AND TRANSPORT METHOD

OPTICAL SIGNAL TRANSMISSION APPARATUS AND OPTICAL SIGNAL TRANSMISSI...

OPTICAL TRANSMISSION/RECEPTION SYSTEM, TRANSMITTER, RECEIVER, AND O...

CLIENT SIGNAL MAPPING CIRCUIT AND MAPPING METHOD

OPTICAL TRANSMISSION SYSTEM, PHASE COMPENSATION METHOD, AND OPTICAL...

COHERENT COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND TRANSMISSI...

OPTICAL RECEIVING DEVICE AND PHASE CYCLE REDUCTION METHOD

METHOD FOR ESTIMATING AMOUNT OF WAVELENGTH DISPERSION, WAVELENGTH D...

WAVELENGTH DISPERSION AMOUNT ESTIMATION METHOD, WAVELENGTH DISPERSI...

CLIENT SIGNAL MAPPING CIRCUIT AND MAPPING METHOD

CLIENT SIGNAL ACCOMMODATING MULTIPLEXING APPARATUS AND METHOD

OPTICAL DIGITAL TRANSMISSION SYSTEM

MULTIPLEXING TRANSMISSION SYSTEM AND MULTIPLEXING TRANSMISSION METHOD