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Takashi Mitsui
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Communication apparatus and communication method
Patent number
11,611,470
Issue date
Mar 21, 2023
Nippon Telegraph and Telephone Corporation
Takamitsu Tochino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system and output adjustment apparatus
Patent number
11,575,443
Issue date
Feb 7, 2023
Nippon Telegraph and Telephone Corporation
Takashi Mitsui
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system and carrier monitoring apparatus
Patent number
11,444,716
Issue date
Sep 13, 2022
Nippon Telegraph and Telephone Corporation
Takashi Mitsui
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical line terminal and bandwidth allocation method
Patent number
11,412,316
Issue date
Aug 9, 2022
Nippon Telegraph and Telephone Corporation
Keita Nishimoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmission device, and transmission method
Patent number
11,197,077
Issue date
Dec 7, 2021
Nippon Telegraph and Telephone Corporation
Takamitsu Tochino
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
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM AND OUTPUT ADJUSTMENT APPARATUS
Publication number
20220140906
Publication date
May 5, 2022
Nippon Telegraph and Telephone Corporation
Takashi MITSUI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM AND CARRIER MONITORING APPARATUS
Publication number
20220131633
Publication date
Apr 28, 2022
Nippon Telegraph and Telephone Corporation
Takashi MITSUI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION APPARATUS AND COMMUNICATION METHOD
Publication number
20210297308
Publication date
Sep 23, 2021
Nippon Telegraph and Telephone Corporation
Takamitsu TOCHINO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL LINE TERMINAL AND BANDWIDTH ALLOCATION METHOD
Publication number
20210168475
Publication date
Jun 3, 2021
Nippon Telegraph and Telephone Corporation
Keita NISHIMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION APPARATUS AND COMMUNICATION METHOD
Publication number
20210168022
Publication date
Jun 3, 2021
Nippon Telegraph and Telephone Corporation
Takamitsu TOCHINO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRANSMISSION DEVICE, AND TRANSMISSION METHOD
Publication number
20210051382
Publication date
Feb 18, 2021
Nippon Telegraph and Telephone Corporation
Takamitsu TOCHINO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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