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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Data acquisition device and data acquisition method
Patent number
12,088,689
Issue date
Sep 10, 2024
NTT Advanced Technology Corporation
Yuta Ukon
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dispersion compensation system and dispersion compensation method
Patent number
11,251,868
Issue date
Feb 15, 2022
Nippon Telegraph and Telephone Corporation
Kana Masumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transceiver
Patent number
11,206,086
Issue date
Dec 21, 2021
Nippon Telegraph and Telephone Corporation
Toshiya Matsuda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmitter, optical receiver, and optical transmission system
Patent number
10,951,344
Issue date
Mar 16, 2021
Nippon Telegraph and Telephone Corporation
Toshiya Matsuda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical network system, optical switch node, master node, and node
Patent number
9,883,262
Issue date
Jan 30, 2018
Nippon Telegraph and Telephone Corporation
Kyota Hattori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical node device, network control device, maintenance-staff devi...
Patent number
8,909,042
Issue date
Dec 9, 2014
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Flow record restriction apparatus and the method
Patent number
8,239,565
Issue date
Aug 7, 2012
Nippon Telegraph and Telephone Corporation
Hitoshi Irino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical node device, network control device, maintenance-staff devi...
Patent number
8,081,881
Issue date
Dec 20, 2011
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical node device, network control device, maintenance-staff devi...
Patent number
8,009,994
Issue date
Aug 30, 2011
Nippon Telegraph and Telephone Corporation
Eiji Oki
Information
Patent Grant
OVPN system, OVPN terminating device, collective controlling device...
Patent number
7,894,368
Issue date
Feb 22, 2011
Nippon Telegraph and Telephone Corporation
Akira Misawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical node device, network control device, maintenance-staff devi...
Patent number
7,720,390
Issue date
May 18, 2010
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical node device, network control device, maintenance-staff devi...
Patent number
7,630,649
Issue date
Dec 8, 2009
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Node, an optical/electrical path integrated network using the node,...
Patent number
7,313,094
Issue date
Dec 25, 2007
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
DATA ACQUISITION DEVICE AND DATA ACQUISITION METHOD
Publication number
20230239379
Publication date
Jul 27, 2023
NTT ADVANCED TECHNOLOGY CORPORATION
Yuta UKON
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DISPERSION COMPENSATION SYSTEM AND DISPERSION COMPENSATION METHOD
Publication number
20210266069
Publication date
Aug 26, 2021
Nippon Telegraph and Telephone Corporation
Kana MASUMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSCEIVER
Publication number
20210143911
Publication date
May 13, 2021
Nippon Telegraph and Telephone Corporation
Toshiya Matsuda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMITTER, OPTICAL RECEIVER, AND OPTICAL TRANSMISSION SYSTEM
Publication number
20200127757
Publication date
Apr 23, 2020
Nippon Telegraph and Telephone Corporation
Toshiya MATSUDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL NETWORK SYSTEM, OPTICAL SWITCH NODE, MASTER NODE, AND NODE
Publication number
20150131991
Publication date
May 14, 2015
Nippon Telegraph and Telephone Corporation
Kyota Hattori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FLOW RECORD RESTRICTION APPARATUS AND THE METHOD
Publication number
20100070647
Publication date
Mar 18, 2010
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Hitoshi Irino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL NODE DEVICE, NETWORK CONTROL DEVICE, MAINTENANCE-STAFF DEVI...
Publication number
20100040367
Publication date
Feb 18, 2010
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL NODE DEVICE, NETWORK CONTROL DEVICE, MAINTENANCE-STAFF DEVI...
Publication number
20090196608
Publication date
Aug 6, 2009
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical Node Device, Network Control Device, Maintenance-Staff Devi...
Publication number
20090052895
Publication date
Feb 26, 2009
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical node device, network control device, maintenance-staff devi...
Publication number
20060056846
Publication date
Mar 16, 2006
Nippon Telegraph and Telephone Corporation
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OVPN system, OVPN terminating device, collective controlling device...
Publication number
20040151500
Publication date
Aug 5, 2004
Akira Misawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Node, an optical/electrical path integrated network using the node,...
Publication number
20030156536
Publication date
Aug 21, 2003
Eiji Oki
H04 - ELECTRIC COMMUNICATION TECHNIQUE