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YASUHIKO NAGAI
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BUNKYO-KU, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Tool, method, and program for supporting system security design/eva...
Patent number
7,748,041
Issue date
Jun 29, 2010
Hitachi, Ltd.
Kousuke Anzai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information security policy evaluation system and method of control...
Patent number
7,415,728
Issue date
Aug 19, 2008
Hitachi, Ltd.
Masayuki Morohashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Security system design supporting method
Patent number
7,089,581
Issue date
Aug 8, 2006
Hitachi, Ltd.
Yasuhiko Nagai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for evaluating security and method and apparat...
Patent number
6,971,026
Issue date
Nov 29, 2005
Hitachi, Ltd.
Tatsuya Fujiyama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information reception processing method and computer-telephony inte...
Patent number
6,636,587
Issue date
Oct 21, 2003
Hitachi, Ltd.
Yasuhiko Nagai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System configuration proposal method and tool therefor
Patent number
6,347,303
Issue date
Feb 12, 2002
Hitachi, Ltd.
Yasuhiko Nagai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Application cooperation method and apparatus
Patent number
6,275,977
Issue date
Aug 14, 2001
Hitachi, Ltd.
Yasuhiko Nagai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Network management operation system and network management operatio...
Patent number
5,586,255
Issue date
Dec 17, 1996
Yasuhiro Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication network management system for displaying operation st...
Patent number
5,483,631
Issue date
Jan 9, 1996
Hitachi, Ltd.
Yasuhiko Nagai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Network management system and network status display method
Patent number
5,471,399
Issue date
Nov 28, 1995
Hitachi, Ltd.
Yasuhiro Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Encrypting system of data
Patent number
4,969,190
Issue date
Nov 6, 1990
Hitachi, Ltd.
Kazuo Takaragi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Tool, method, and program for supporting system security design/eva...
Publication number
20060242711
Publication date
Oct 26, 2006
Kousuke Anzai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Information security policy evaluation system and method of control...
Publication number
20050076243
Publication date
Apr 7, 2005
Hitachi, Ltd
Masayuki Morohashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Security specification creation support device and method of securi...
Publication number
20040230822
Publication date
Nov 18, 2004
Hitachi, Ltd.
Tatsuya Fujiyama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Digital signature or electronic seal authentication system and reco...
Publication number
20020129255
Publication date
Sep 12, 2002
Chikako Tsuchiyama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Security management system and security managing method
Publication number
20010025346
Publication date
Sep 27, 2001
Makoto Kayashima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SYSTEM CONFIGURATION PROPOSAL METHOD AND TOOL THEREFOR
Publication number
20010025247
Publication date
Sep 27, 2001
YASUHIKO NAGAI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Security management system and security managing method
Publication number
20010023486
Publication date
Sep 20, 2001
Makoto Kayashima
G06 - COMPUTING CALCULATING COUNTING