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Hideki NISHIZAWA
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical and electronic integrated switch
Patent number
12,107,762
Issue date
Oct 1, 2024
Nippon Telegraph and Telephone Corporation
Osamu Moriwaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication network management apparatus
Patent number
12,034,484
Issue date
Jul 9, 2024
Nippon Telegraph and Telephone Corporation
Takafumi Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical and electronic integrated switch
Patent number
11,979,694
Issue date
May 7, 2024
Nippon Telegraph and Telephone Corporation
Osamu Moriwaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical and electronic integrated switch
Patent number
11,930,309
Issue date
Mar 12, 2024
Nippon Telegraph and Telephone Corporation
Keita Yamaguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical and electronic integrated switch and optical network system
Patent number
11,881,897
Issue date
Jan 23, 2024
Nippon Telegraph and Telephone Corporation
Hideki Nishizawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal processing apparatus, signal processing method, and program
Patent number
11,799,547
Issue date
Oct 24, 2023
Nippon Telegraph and Telephone Corporation
Kengo Horikoshi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system and transmission mode selecting method
Patent number
11,546,064
Issue date
Jan 3, 2023
Nippon Telegraph and Telephone Corporation
Tetsuro Inui
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
State estimating device and communication system
Patent number
11,342,990
Issue date
May 24, 2022
Nippon Telegraph and Telephone Corporation
Seiki Kuwabara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system and communication condition selection m...
Patent number
11,165,497
Issue date
Nov 2, 2021
Nippon Telegraph and Telephone Corporation
Fumikazu Inuzuka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Processing equipment and remote management system
Patent number
10,685,095
Issue date
Jun 16, 2020
NTT Electronics Corporation
Etsushi Yamazaki
G06 - COMPUTING CALCULATING COUNTING
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
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL AND ELECTRONIC INTEGRATED SWITCH
Publication number
20240422097
Publication date
Dec 19, 2024
Nippon Telegraph and Telephone Corporation
Osamu Moriwaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM, INTERMEDIATE APPARATUS, COMMUNICATION METHOD,...
Publication number
20240414092
Publication date
Dec 12, 2024
Nippon Telegraph and Telephone Corporation
Tomoya HIBI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
INTERMEDIATE APPARATUS, COMMUNICATION METHOD, AND PROGRAM
Publication number
20240394215
Publication date
Nov 28, 2024
Nippon Telegraph and Telephone Corporation
Junki ICHIKAWA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
COMMUNICATION SYSTEM, COMPUTER, COMMUNICATION METHOD AND PROGRAM
Publication number
20240385986
Publication date
Nov 21, 2024
Nippon Telegraph and Telephone Corporation
Tomoya HIBI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
QUANTUM KEY DISTRIBUTION SYSTEM, QUANTUM KEY DISTRIBUTION METHOD, A...
Publication number
20240372713
Publication date
Nov 7, 2024
Nippon Telegraph and Telephone Corporation
Atsushi TANIGUCHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM, COMPUTER, COMMUNICATION METHOD, AND PROGRAM
Publication number
20240357008
Publication date
Oct 24, 2024
Nippon Telegraph and Telephone Corporation
Toru MANO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM AND TRANSMISSION MODE SELECTING METHOD
Publication number
20240235690
Publication date
Jul 11, 2024
Nippon Telegraph and Telephone Corporation
Tetsuro Inui
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CONNECTION NODE APPARATUS, OPTICAL TRANSMISSION SYSTEM, AND CONNECT...
Publication number
20240196118
Publication date
Jun 13, 2024
Nippon Telegraph and Telephone Corporation
Kei KITAMURA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
STATE ESTIMATION SYSTEM, SECRET SIGNAL GENERATOR, STATE ESTIMATION...
Publication number
20240154694
Publication date
May 9, 2024
Nippon Telegraph and Telephone Corporation
Takayuki NAKACHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
INTERMEDIATE APPARATUS, COMMUNICATION METHOD, AND PROGRAM
Publication number
20240146806
Publication date
May 2, 2024
Nippon Telegraph and Telephone Corporation
Junki ICHIKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM AND TRANSMISSION MODE SELECTING METHOD
Publication number
20240137128
Publication date
Apr 25, 2024
Nippon Telegraph and Telephone Corporation
Tetsuro Inui
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION APPARATUS, RELAY APPARATUS, COMMUNICATION SYSTEM, COM...
Publication number
20240064077
Publication date
Feb 22, 2024
Nippon Telegraph and Telephone Corporation
Toru MANO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CONNECTION OPTIMIZATION DEVICE, CONNECTION OPTIMIZATION METHOD, AND...
Publication number
20240048443
Publication date
Feb 8, 2024
Nippon Telegraph and Telephone Corporation
Takeru INOUE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM, ORCHESTRATOR, CONTROL METHOD AND PROGRAM
Publication number
20230412950
Publication date
Dec 21, 2023
Nippon Telegraph and Telephone Corporation
Kazuya ANAZAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical and Electronic Integrated Switch
Publication number
20230136142
Publication date
May 4, 2023
Nippon Telegraph and Telephone Corporation
Osamu Moriwaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical and Electronic Integrated Switch and Optical Network System
Publication number
20230082854
Publication date
Mar 16, 2023
Nippon Telegraph and Telephone Corporation
Hideki Nishizawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION NETWORK MANAGEMENT APPARATUS
Publication number
20230076671
Publication date
Mar 9, 2023
Nippon Telegraph and Telephone Corporation
Takafumi TANAKA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical and Electronic Integrated Switch
Publication number
20230073384
Publication date
Mar 9, 2023
Nippon Telegraph and Telephone Corporation
Osamu Moriwaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical and Electronic Integrated Switch
Publication number
20230060777
Publication date
Mar 2, 2023
Nippon Telegraph and Telephone Corporation
Keita Yamaguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD, AND PROGRAM
Publication number
20220303003
Publication date
Sep 22, 2022
Nippon Telegraph and Telephone Corporation
Kengo HORIKOSHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM AND TRANSMISSION MODE SELECTING METHOD
Publication number
20210314067
Publication date
Oct 7, 2021
Nippon Telegraph and Telephone Corporation
Tetsuro Inui
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM AND COMMUNICATION CONDITION SELECTION M...
Publication number
20210028857
Publication date
Jan 28, 2021
Nippon Telegraph and Telephone Corporation
Fumikazu INUZUKA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
STATE ESTIMATING DEVICE AND COMMUNICATION SYSTEM
Publication number
20210013963
Publication date
Jan 14, 2021
Nippon Telegraph and Telephone Corporation
Seiki KUWABARA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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
PROCESSING EQUIPMENT AND REMOTE MANAGEMENT SYSTEM
Publication number
20180068095
Publication date
Mar 8, 2018
NTT ELECTRONICS CORPORATION
Etsushi YAMAZAKI
G06 - COMPUTING CALCULATING COUNTING