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Mitsunori Fukutoku
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optically amplified repeater system and optical amplifier
Patent number
11,476,635
Issue date
Oct 18, 2022
Nippon Telegraph and Telephone Corporation
Takayuki Mizuno
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Symbol-determining device and symbol determination method
Patent number
11,349,524
Issue date
May 31, 2022
Nippon Telegraph and Telephone Corporation
Hiroki Taniguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical node device
Patent number
10,965,375
Issue date
Mar 30, 2021
Nippon Telegraph and Telephone Corporation
Hirotaka Ono
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Encoding device and decoding device
Patent number
10,756,819
Issue date
Aug 25, 2020
Nippon Telegraph and Telephone Corporation
Shuto Yamamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Encoding device and decoding device
Patent number
10,693,562
Issue date
Jun 23, 2020
Nippon Telegraph and Telephone Corporation
Shuto Yamamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Encoding device and decoding device
Patent number
10,651,945
Issue date
May 12, 2020
Nippon Telegraph and Telephone Corporation
Shuto Yamamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical signal processing device with an array waveguide coupled to...
Patent number
9,723,387
Issue date
Aug 1, 2017
Nippon Telegraph and Telephone Corporation
Kenya Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmission system and transmission method
Patent number
9,336,080
Issue date
May 10, 2016
Nippon Telegraph and Telephone Corporation
Akira Hirano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavelength selection switch system and method for controlling wavel...
Patent number
9,294,826
Issue date
Mar 22, 2016
Nippon Telegraph and Telephone Corporation
Tomoyoshi Kataoka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavelength selection switch system and method for controlling wavel...
Patent number
9,247,324
Issue date
Jan 26, 2016
Nippon Telegraph and Telephone Corporation
Tomoyoshi Kataoka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Packet transmission method and packet transmission device
Patent number
8,625,588
Issue date
Jan 7, 2014
Nippon Telegraph and Telephone Corporation
Ippei Shake
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Packet transmission method and packet transmission device
Patent number
7,869,428
Issue date
Jan 11, 2011
Nippon Telegraph and Telephone Corporation
Ippei Shake
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL NODE DEVICE
Publication number
20210036781
Publication date
Feb 4, 2021
Nippon Telegraph and Telephone Corporation
Hirotaka ONO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYMBOL-DETERMINING DEVICE AND SYMBOL DETERMINATION METHOD
Publication number
20200389207
Publication date
Dec 10, 2020
Nippon Telegraph and Telephone Corporation
Hiroki TANIGUCHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICALLY AMPLIFIED REPEATER SYSTEM AND OPTICAL AMPLIFIER
Publication number
20200381888
Publication date
Dec 3, 2020
Nippon Telegraph and Telephone Corporation
Takayuki MIZUNO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Encoding Device And Decoding Device
Publication number
20200244369
Publication date
Jul 30, 2020
Nippon Telegraph and Telephone Corporation
Shuto YAMAMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Encoding Device And Decoding Device
Publication number
20200052792
Publication date
Feb 13, 2020
Nippon Telegraph and Telephone Corporation
Shuto YAMAMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL SIGNAL PROCESSING APPARATUS
Publication number
20150237420
Publication date
Aug 20, 2015
Nippon Telegraph and Telephone Corporation
Kenya Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WAVELENGTH SELECTION SWITCH SYSTEM AND METHOD FOR CONTROLLING WAVEL...
Publication number
20150030327
Publication date
Jan 29, 2015
Nippon Telegraph and Telephone Corporation
Tomoyoshi Kataoka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRANSMISSION SYSTEM AND TRANSMISSION METHOD
Publication number
20140108894
Publication date
Apr 17, 2014
Nippon Telegraph and Telephone Corporation
Akira Hirano
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
PACKET TRANSMISSION METHOD AND PACKET TRANSMISSION DEVICE
Publication number
20110038373
Publication date
Feb 17, 2011
NIPPON TELEGRAPH AND TELEPHONE CORP.
Ippei SHAKE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Packet Transmission Method and Packet Transmission Device
Publication number
20080279181
Publication date
Nov 13, 2008
Ippei Shake
H04 - ELECTRIC COMMUNICATION TECHNIQUE