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Youichi Fukada
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Transfer device and transfer method
Patent number
11,616,661
Issue date
Mar 28, 2023
Nippon Telegraph and Telephone Corporation
Daisuke Hisano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transfer device and transfer method
Patent number
11,201,825
Issue date
Dec 14, 2021
Nippon Telegraph and Telephone Corporation
Daisuke Hisano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time synchronization device, and method and program therefor
Patent number
11,150,353
Issue date
Oct 19, 2021
Nippon Telegraph and Telephone Corporation
Keisuke Nishi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Satellite signal reception characteristic estimation apparatus, met...
Patent number
10,520,605
Issue date
Dec 31, 2019
Nippon Telegraph and Telephone Corporation
Keisuke Nishi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Self-diagnostic method for PON protection system, and PON protectio...
Patent number
9,276,670
Issue date
Mar 1, 2016
Nippon Telegraoh and Telephone Corporation
Youichi Fukada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical network system
Patent number
9,179,204
Issue date
Nov 3, 2015
Nippon Telegraph and Telephone Corporation
Takashi Mitsui
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Error correction method and apparatus
Patent number
7,698,290
Issue date
Apr 13, 2010
Nippon Telegraph and Telephone Corporation
Koichi Saito
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
TRANSFER DEVICE AND TRANSFER METHOD
Publication number
20210083982
Publication date
Mar 18, 2021
Nippon Telegraph and Telephone Corporation
Daisuke HISANO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRANSFER DEVICE AND TRANSFER METHOD
Publication number
20210036885
Publication date
Feb 4, 2021
Nippon Telegraph and Telephone Corporation
Daisuke HISANO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SATELLITE SIGNAL RECEPTION CHARACTERISTIC ESTIMATION APPARATUS, MET...
Publication number
20180024250
Publication date
Jan 25, 2018
Nippon Telegraph and Telephone Corporation
Keisuke NISHI
G01 - MEASURING TESTING
Information
Patent Application
TIME SYNCHRONIZATION DEVICE, AND METHOD AND PROGRAM THEREFOR
Publication number
20170350984
Publication date
Dec 7, 2017
Nippon Telegraph and Telephone Corporation
Keisuke NISHI
G01 - MEASURING TESTING
Information
Patent Application
SELF-DIAGNOSTIC METHOD FOR PON PROTECTION SYSTEM, AND PON PROTECTIO...
Publication number
20150003822
Publication date
Jan 1, 2015
Nippon Telegraph and Telephone Corporation
Youichi Fukada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL NETWORK SYSTEM
Publication number
20140219654
Publication date
Aug 7, 2014
Nippon Telegraph and Telephone Corporation
Takashi Mitsui
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Error correction method and apparatus
Publication number
20090055704
Publication date
Feb 26, 2009
Nippon Telegraph and Telephone Corporation
Koichi Saito
H04 - ELECTRIC COMMUNICATION TECHNIQUE