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Sadayuki Yasuda
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Kanagawa-ken, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Coherent optical reception device
Patent number
10,389,452
Issue date
Aug 20, 2019
Nippon Telegraph and Telephone Corporation
Kengo Horikoshi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Packet transfer processing apparatus and method
Patent number
9,894,007
Issue date
Feb 13, 2018
Nippon Telegraph and Telephone Corporation
Yasuyuki Itoh
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Packet transfer processing method and packet transfer processing de...
Patent number
9,401,875
Issue date
Jul 26, 2016
Nippon Telegraph and Telephone Corporation
Sadayuki Yasuda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal separating circuit, signal separating method, signal multipl...
Patent number
8,731,006
Issue date
May 20, 2014
Nippon Telegraph and Telephone Corporation
Yasuyuki Matsuya
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal separating circuit, signal separating method, signal multipl...
Patent number
7,894,490
Issue date
Feb 22, 2011
Nippon Telegraph and Telephone Corporation
Yasuyuki Matsuya
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
COHERENT OPTICAL RECEPTION DEVICE
Publication number
20190013876
Publication date
Jan 10, 2019
Nippon Telegraph and Telephone Corporation
Kengo HORIKOSHI
G02 - OPTICS
Information
Patent Application
PACKET TRANSFER PROCESSING APPARATUS AND METHOD
Publication number
20160127249
Publication date
May 5, 2016
Nippon Telegraph and Telephone Corporation
Yasuyuki Itoh
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL LINE TERMINAL AND FRAME TRANSFER METHOD
Publication number
20150171965
Publication date
Jun 18, 2015
Nippon Telegraph and Telephone Corporation
Shoko Ohteru
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PACKET TRANSFER PROCESSING METHOD AND PACKET TRANSFER PROCESSING DE...
Publication number
20150146740
Publication date
May 28, 2015
Nippon Telegraph and Telephone Corporation
Sadayuki Yasuda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Signal Separating Circuit, Signal Separating Method, Signal Multipl...
Publication number
20110170636
Publication date
Jul 14, 2011
Nippon Telegraph and Telephone Corporation
Yasuyuki Matsuya
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Signal Separating Circuit, Signal Separating Method, Signal Multipl...
Publication number
20090175300
Publication date
Jul 9, 2009
Nippon Telegraph and Telephone Corporation
Yasuyuki Matsuya
H04 - ELECTRIC COMMUNICATION TECHNIQUE