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Kazuhiro KUSAMA
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Yokohama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Data transport system and control method of data transport system
Patent number
9,094,330
Issue date
Jul 28, 2015
Hitachi, Ltd.
Masayuki Takase
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication node and communication system
Patent number
8,988,989
Issue date
Mar 24, 2015
Hitachi, Ltd.
Machiko Asaie
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Control apparatus
Patent number
8,483,219
Issue date
Jul 9, 2013
Hitachi, Ltd.
Akihiro Kamiya
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Network system
Patent number
8,352,771
Issue date
Jan 8, 2013
Hitachi, Ltd.
Naomichi Nonaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical network equipment and optical network
Patent number
8,346,078
Issue date
Jan 1, 2013
Hitachi, Ltd.
Kazuhiro Kusama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication network system, path calculation device, and communic...
Patent number
8,340,104
Issue date
Dec 25, 2012
Hitachi, Ltd.
Kazuhiro Kusama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication node and communication system
Patent number
8,279,758
Issue date
Oct 2, 2012
Hitachi, Ltd.
Machiko Asaie
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication network system that establishes communication path by...
Patent number
8,233,487
Issue date
Jul 31, 2012
Hitachi, Ltd.
Kazuhiro Kusama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Network system
Patent number
8,166,327
Issue date
Apr 24, 2012
Hitachi, Ltd.
Naomichi Nonaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Network system and node apparatus
Patent number
8,027,246
Issue date
Sep 27, 2011
Hitachi, Ltd.
Kazuma Yumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication path monitoring system and communication network system
Patent number
7,995,572
Issue date
Aug 9, 2011
Hitachi, Ltd.
Kazuhiro Kusama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Route control method of label switch path
Patent number
7,852,758
Issue date
Dec 14, 2010
Hitachi Ltd.
Kenji Kataoka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical network equipment and optical network
Patent number
7,848,648
Issue date
Dec 7, 2010
Hitachi, Ltd.
Kazuhiro Kusama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication path monitoring system
Patent number
7,733,791
Issue date
Jun 8, 2010
Hitachi, Ltd.
Kazuhiro Kusama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Service reservation system
Patent number
7,328,167
Issue date
Feb 5, 2008
Hitachi, Ltd.
Kazuhiro Kusama
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
ROUTING CONTROL METHOD AND NON-TRANSITORY COMPUTER-READABLE RECORDI...
Publication number
20150334019
Publication date
Nov 19, 2015
Hitachi, Ltd
Ryuichi SAITO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MONITORING APPARATUS AND MONITORING METHOD
Publication number
20140372601
Publication date
Dec 18, 2014
Hitachi, Ltd
Koji SUZUKI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION NETWORK SYSTEM, PATH CALCULATION DEVICE, AND COMMUNIC...
Publication number
20130121338
Publication date
May 16, 2013
Hitachi, Ltd
Kazuhiro KUSAMA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Data Transport System and Control Method of Data Transport System
Publication number
20130022052
Publication date
Jan 24, 2013
Hitachi, Ltd
Masayuki TAKASE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION NODE AND COMMUNICATION SYSTEM
Publication number
20130003525
Publication date
Jan 3, 2013
Machiko ASAIE
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Network System
Publication number
20120177058
Publication date
Jul 12, 2012
HITACHI, LTD.
Naomichi Nonaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical network equipment and optical network
Publication number
20110076015
Publication date
Mar 31, 2011
Hitachi, Ltd.
Kazuhiro Kusama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CONTROL APPARATUS
Publication number
20100260184
Publication date
Oct 14, 2010
Akihiro KAMIYA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION NETWORK SYSTEM, PATH CALCULATION DEVICE, AND COMMUNIC...
Publication number
20100034205
Publication date
Feb 11, 2010
Hitachi Communication Technologies, Ltd.
Kazuhiro KUSAMA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Communication Node and Communication System
Publication number
20090310482
Publication date
Dec 17, 2009
Hitachi Communication Technologies, Ltd.
Machiko ASAIE
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Network system
Publication number
20090089601
Publication date
Apr 2, 2009
Hitachi Communication Technologies, Ltd.
Naomichi Nonaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Network system and node apparatus
Publication number
20080253295
Publication date
Oct 16, 2008
Hitachi, Ltd.
Kazuma Yumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION NETWORK SYSTEM
Publication number
20080240120
Publication date
Oct 2, 2008
Kazuhiro Kusama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION SYSTEM AND ROUTER
Publication number
20080225727
Publication date
Sep 18, 2008
Hitoshi YOSHIDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ROUTING FAILURE RECOVERY MECHANISM FOR NETWORK SYSTEMS
Publication number
20080049610
Publication date
Feb 28, 2008
Pinai LINWONG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical network equipment and optical network
Publication number
20070014510
Publication date
Jan 18, 2007
Hitachi Communication Technologies, Ltd.
Kazuhiro Kusama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Communication path monitoring system and communication network system
Publication number
20060256711
Publication date
Nov 16, 2006
Kazuhiro Kusama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Communication path monitoring system and communication network system
Publication number
20060092941
Publication date
May 4, 2006
Kazuhiro Kusama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Route control method of label switch path
Publication number
20060083251
Publication date
Apr 20, 2006
Kenji Kataoka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Communication path monitoring system
Publication number
20030165114
Publication date
Sep 4, 2003
Hitachi, Ltd
Kazuhiro Kusama
H04 - ELECTRIC COMMUNICATION TECHNIQUE