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Shigeki Morimoto
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Atsugi-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method, apparatus and system for distributing multicast data
Patent number
7,606,227
Issue date
Oct 20, 2009
Hitachi, Ltd.
Hidehiro Fukushima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Device and system for multicast communication
Patent number
7,443,851
Issue date
Oct 28, 2008
Hitachi, Ltd.
Hidehiro Fukushima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Packet switching method and apparatus thereof
Patent number
7,170,885
Issue date
Jan 30, 2007
Hitachi, Ltd.
Nagayuki Hirota
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for sharing network information and a router apparatus
Patent number
6,577,634
Issue date
Jun 10, 2003
Hitachi, Ltd.
Masato Tsukakoshi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Packet switching method and apparatus thereof
Patent number
6,542,496
Issue date
Apr 1, 2003
Hitachi, Ltd.
Nagayuki Hirota
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Scalable cluster-type router device and configuring method thereof
Patent number
6,496,510
Issue date
Dec 17, 2002
Hitachi, Ltd.
Masato Tsukakoshi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for using active and standby routers wherein both...
Patent number
6,490,246
Issue date
Dec 3, 2002
Hitachi, Ltd.
Hidehiro Fukushima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Internetwork route calculation execution method and apparatus
Patent number
6,370,653
Issue date
Apr 9, 2002
Hitachi, Ltd.
Shinya Ichinohe
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Multiplex router device comprising a function for controlling a tra...
Patent number
6,049,524
Issue date
Apr 11, 2000
Hitachi, Ltd.
Hidehiro Fukushima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multiprocessor bridge having storage for spanning tree operation mo...
Patent number
5,761,435
Issue date
Jun 2, 1998
Hitachi, Ltd.
Masashi Fukuda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Bus system wherein a bus-using request signal is issued in advance...
Patent number
5,297,292
Issue date
Mar 22, 1994
Hitachi, Ltd.
Shigeki Morimoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information processing system with instruction address saving funct...
Patent number
5,032,980
Issue date
Jul 16, 1991
Hitachi, Ltd.
Seiichi Ozaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Communications control unit
Patent number
4,849,962
Issue date
Jul 18, 1989
Hitachi, Ltd.
Shigeki Morimoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Method, apparatus and system for distributing multicast data
Publication number
20040264463
Publication date
Dec 30, 2004
Hidehiro Fukushima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Data distribution system
Publication number
20040098448
Publication date
May 20, 2004
Hidehiro Fukushima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Device and system for multicast communication
Publication number
20030218980
Publication date
Nov 27, 2003
Hitachi, Ltd
Hidehiro Fukushima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method for sharing network information and a router apparatus
Publication number
20030198214
Publication date
Oct 23, 2003
Masato Tsukakoshi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Packet switching method and apparatus thereof
Publication number
20030123429
Publication date
Jul 3, 2003
Hitachi, Ltd.
Nagayuki Hirota
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ROUTER DEVICE HAVING A REDUNDANT CONFIGURATION
Publication number
20020060986
Publication date
May 23, 2002
HIDEHIRO FUKUSHIMA
H04 - ELECTRIC COMMUNICATION TECHNIQUE