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Kawasaki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Network system, management device, and network design method
Patent number
11,196,485
Issue date
Dec 7, 2021
Fujitsu Limited
Taizo Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication apparatus, server apparatus, and optical tran...
Patent number
10,715,363
Issue date
Jul 14, 2020
Fujitsu Limited
Naoya Okada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Network design apparatus, network design method, and storage medium
Patent number
10,707,963
Issue date
Jul 7, 2020
Fujitsu Limited
Taizo Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Receiving apparatus and setting method
Patent number
10,541,757
Issue date
Jan 21, 2020
Fujitsu Limited
Taizo Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system, optical transmission apparatus, and op...
Patent number
9,825,731
Issue date
Nov 21, 2017
Fujitsu Limited
Taizo Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system, management device, and signal adjustme...
Patent number
9,419,741
Issue date
Aug 16, 2016
Fujitsu Limited
Taizo Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communication device, wavelength number measurement device,...
Patent number
8,891,961
Issue date
Nov 18, 2014
Fujitsu Limited
Taizo Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system using initial likelihood information for perfo...
Patent number
8,611,446
Issue date
Dec 17, 2013
Fujitsu Limited
Taizo Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission device
Patent number
7,970,286
Issue date
Jun 28, 2011
Fujitsu Limited
Taizo Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavelength division multiplexing device, an optical leakage prevent...
Patent number
7,619,813
Issue date
Nov 17, 2009
Fujitsu Limited
Taizo Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system with automatic signal level adjustment...
Patent number
7,509,055
Issue date
Mar 24, 2009
Fujitsu Limited
Hiroaki Tomofuji
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system with automatic signal level adjustment...
Patent number
7,343,102
Issue date
Mar 11, 2008
Fujitsu Limited
Hiroaki Tomofuji
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission device using a wide input dynamic range optica...
Patent number
7,248,804
Issue date
Jul 24, 2007
Fujitsu Limited
Taizo Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmitting apparatus and an optical transmitting system
Patent number
6,760,150
Issue date
Jul 6, 2004
Fujitsu Limited
Ryosuke Goto
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL TRANSCEIVER, OPTICAL COMMUNICATION APPARATUS, OPTICAL COMMU...
Publication number
20240031027
Publication date
Jan 25, 2024
Fujitsu Limited
Taizo MAEDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
NETWORK SYSTEM, MANAGEMENT DEVICE, AND NETWORK DESIGN METHOD
Publication number
20210075506
Publication date
Mar 11, 2021
Fujitsu Limited
Taizo MAEDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION APPARATUS, SERVER APPARATUS, OPTICAL TRANSPOR...
Publication number
20200213009
Publication date
Jul 2, 2020
Fujitsu Limited
Naoya OKADA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
NETWORK DESIGN APPARATUS, NETWORK DESIGN METHOD, AND STORAGE MEDIUM
Publication number
20190288775
Publication date
Sep 19, 2019
Fujitsu Limited
Taizo MAEDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RECEIVING APPARATUS AND SETTING METHOD
Publication number
20180212685
Publication date
Jul 26, 2018
Fujitsu Limited
Taizo MAEDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RECEIVING APPARATUS AND SETTING METHOD
Publication number
20170366274
Publication date
Dec 21, 2017
Fujitsu Limited
Taizo MAEDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CODING APPARATUS, TRANSPORT APPARATUS, AND CODING METHOD
Publication number
20170359085
Publication date
Dec 14, 2017
Fujitsu Limited
Taizo MAEDA
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM, OPTICAL TRANSMISSION APPARATUS, AND OP...
Publication number
20160261368
Publication date
Sep 8, 2016
Fujitsu Limited
Taizo MAEDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM, MANAGEMENT DEVICE, AND SIGNAL ADJUSTME...
Publication number
20150016818
Publication date
Jan 15, 2015
Fujitsu Limited
Taizo MAEDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL COMMUNICATION DEVICE, WAVELENGTH NUMBER MEASUREMENT DEVICE,...
Publication number
20130156422
Publication date
Jun 20, 2013
FUJITSU LIMITED
Taizo MAEDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM
Publication number
20100128809
Publication date
May 27, 2010
FUJITSU LIMITED
Taizo Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION DEVICE
Publication number
20100040373
Publication date
Feb 18, 2010
FUJITSU LIMITED
Taizo MAEDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmission system with automatic signal level adjustment...
Publication number
20080159753
Publication date
Jul 3, 2008
FUJITSU LIMITED
Hiroaki Tomofuji
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wavelength division multiplexing device, an optical leakage prevent...
Publication number
20060221435
Publication date
Oct 5, 2006
FUJITSU LIMITED
Taizo Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmission device using a wide input dynamic range optica...
Publication number
20060127101
Publication date
Jun 15, 2006
FUJITSU LIMITED
Taizo Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmission system with automatic signal level adjustment...
Publication number
20050158057
Publication date
Jul 21, 2005
FUJITSU LIMITED
Hiroaki Tomofuji
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmitting apparatus and an optical transmitting system
Publication number
20030076578
Publication date
Apr 24, 2003
FUJITSU LIMITED
Ryosuke Goto
H01 - BASIC ELECTRIC ELEMENTS