Tadashi KAJI

Person

Yokohama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method, product and apparatus for accelerating public-key certifica...
- Patent number 8,516,245
- Issue date Aug 20, 2013
- Hitachi, Ltd.
- Yoko Kumagai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
ID bridge service system and method thereof
- Patent number 8,402,524
- Issue date Mar 19, 2013
- Hitachi, Ltd.
- Tadashi Kaji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Management server, communication apparatus and program implementing...
- Patent number 8,238,555
- Issue date Aug 7, 2012
- Hitachi, Ltd.
- Osamu Takata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encrypted communication system, communication status management ser...
- Patent number 8,218,769
- Issue date Jul 10, 2012
- Hitachi, Ltd.
- Osamu Takata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data communication method and data communication system
- Patent number 8,205,074
- Issue date Jun 19, 2012
- Hitachi, Ltd.
- Kazuyoshi Hoshino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device and system for assisting printer selection through a network
- Patent number 8,094,337
- Issue date Jan 10, 2012
- Hitachi, Ltd.
- Yoko Hashimoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Mediating system and method to establish communication session, all...
- Patent number 8,095,676
- Issue date Jan 10, 2012
- Hitachi Ltd.
- Tadashi Kaji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication support server, communication support method, and com...
- Patent number 8,081,758
- Issue date Dec 20, 2011
- Hitachi, Ltd.
- Osamu Takata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Service network system and server device
- Patent number 8,041,822
- Issue date Oct 18, 2011
- Hitachi, Ltd.
- Kazuyoshi Hoshino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for encrypted communication with a computer system and syste...
- Patent number 8,019,996
- Issue date Sep 13, 2011
- Hitachi, Ltd.
- Yoko Hashimoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data communication method and system
- Patent number 8,010,793
- Issue date Aug 30, 2011
- Hitachi, Ltd.
- Kazuyoshi Hoshino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for encrypted communication
- Patent number 7,984,290
- Issue date Jul 19, 2011
- Hitachi, Ltd.
- Yoko Hashimoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data communication system enabling data communication between commu...
- Patent number 7,940,780
- Issue date May 10, 2011
- Hitachi, Ltd.
- Dan Yamamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encryption method for SIP message and encrypted SIP communication s...
- Patent number 7,720,227
- Issue date May 18, 2010
- Hitachi, Ltd.
- Tadashi Kaji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cryptographic communication system and method
- Patent number 7,697,692
- Issue date Apr 13, 2010
- Hitachi, Ltd.
- Osamu Takata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encryption communication method and system
- Patent number 7,657,035
- Issue date Feb 2, 2010
- Hitachi, Ltd.
- Akifumi Yato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for accelerating public-key certificate valida...
- Patent number 7,558,952
- Issue date Jul 7, 2009
- Hitachi, Ltd.
- Yoko Kumagai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital-signed digital document exchange supporting method and info...
- Patent number 7,533,269
- Issue date May 12, 2009
- Hitachi, Ltd.
- Yoko Kumagai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Key allocating method and key allocation system for encrypted commu...
- Patent number 7,443,986
- Issue date Oct 28, 2008
- Hitachi, Ltd.
- Osamu Takata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Authentication and authorization infrastructure system with CRL iss...
- Patent number 7,392,380
- Issue date Jun 24, 2008
- Hitachi, Ltd.
- Tadashi Kaji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distributed object system and service supply method therein
- Patent number 6,327,658
- Issue date Dec 4, 2001
- Hitachi, Ltd.
- Seiichi Susaki
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM SECURITY DESIGN SUPPORT DEVICE, AND SYSTEM SECURITY DESIGN S...
- Publication number 20150302213
- Publication date Oct 22, 2015
- Hitachi, Ltd
- YOKO Hashimoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
VULNERABILITY COUNTERMEASURE DEVICE AND VULNERABILITY COUNTERMEASUR...
- Publication number 20140373160
- Publication date Dec 18, 2014
- Hitachi, Ltd
- Tomohiro Shigemoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SECURITY LEVEL VISUALIZATION DEVICE
- Publication number 20130333045
- Publication date Dec 12, 2013
- Hitachi, Ltd
- Tomohiro Shigemoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
PROGRAM ANALYSIS SYSTEM AND METHOD THEREOF
- Publication number 20130227690
- Publication date Aug 29, 2013
- HTIACHI, LTD.
- Nobutaka KAWAGUCHI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
PROGRAM ANALYZING SYSTEM AND METHOD
- Publication number 20130124924
- Publication date May 16, 2013
- Hitachi, Ltd
- Nobutaka Kawaguchi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
AUTHENTICATION COLLABORATION SYSTEM AND AUTHENTICATION COLLABORATIO...
- Publication number 20120254935
- Publication date Oct 4, 2012
- Hitachi, Ltd
- Akifumi YATO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CONNECTION DESTINATION DETERMINATION DEVICE, CONNECTION DESTINATION...
- Publication number 20120254942
- Publication date Oct 4, 2012
- Hitachi, Ltd
- Naoki Hayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ENCRYPTED TRAFFIC TEST SYSTEM
- Publication number 20120210125
- Publication date Aug 16, 2012
- Hitachi, Ltd
- Tomohiro Shigemoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SERVICE LINKAGE DEVICE, PROGRAM, SERVICE LINKAGE METHOD, AND SERVIC...
- Publication number 20120198039
- Publication date Aug 2, 2012
- Hitachi, Ltd
- Naoki Hayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SERVICE COLLABORATION SYSTEM
- Publication number 20120084351
- Publication date Apr 5, 2012
- Hitachi, Ltd
- Akifumi Yato
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
STREAMING DATA DELIVERY SYSTEM AND METHOD THEREOF
- Publication number 20120005362
- Publication date Jan 5, 2012
- Hitachi, Ltd.
- NAOKI HAYASHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ID BRIDGE SERVICE SYSTEM AND METHOD THEREOF
- Publication number 20110239284
- Publication date Sep 29, 2011
- Hitachi, Ltd.
- Tadashi Kaji
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MANAGEMENT SYSTEM FOR WARRANTING CONSISTENCY BETWEEN INTER-CLIENT C...
- Publication number 20100312887
- Publication date Dec 9, 2010
- Yuko Sawai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AUTHENTICATION INTERMEDIARY SERVER, PROGRAM, AUTHENTICATION SYSTEM...
- Publication number 20100138899
- Publication date Jun 3, 2010
- HITACHI LTD.
- Dan YAMAMOTO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SIP SERVER AND COMMUNICATION SYSTEM
- Publication number 20100017527
- Publication date Jan 21, 2010
- Masafumi KINOSHITA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INFORMATION PROVIDING SERVER, PROGRAM, INFORMATION PROVIDING METHOD...
- Publication number 20090327394
- Publication date Dec 31, 2009
- Tadashi KAJI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD, PRODUCT AND APPARATUS FOR ACCELERATING PUBLIC-KEY CERTIFICA...
- Publication number 20090259842
- Publication date Oct 15, 2009
- Hitachi, Ltd
- Yoko KUMAGAI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AUTHENTICATION SERVER, AUTHENTICATION SYSTEM, AND AUTHENTICATION ME...
- Publication number 20090249454
- Publication date Oct 1, 2009
- Hitachi, Ltd
- Dan YAMAMOTO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SERVICE NETWORK SYSTEM AND SERVER DEVICE
- Publication number 20090177802
- Publication date Jul 9, 2009
- Kazuyoshi Hoshino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Network System
- Publication number 20090113203
- Publication date Apr 30, 2009
- HITACHI LTD.
- Munetoshi Tsuge
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ACCESS AUTHORIZATION SYSTEM, ACCESS CONTROL SERVER, AND BUSINESS PR...
- Publication number 20090089866
- Publication date Apr 2, 2009
- Akifumi Yato
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DATA COMMUNICATION SYSTEM
- Publication number 20090067439
- Publication date Mar 12, 2009
- Dan Yamamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
KEY ALLOCATING METHOD AND KEY ALLOCATION SYSTEM FOR ENCRYPTED COMMU...
- Publication number 20090055649
- Publication date Feb 26, 2009
- Hitachi, Ltd
- Osamu TAKATA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Data communication system and session management server
- Publication number 20080256224
- Publication date Oct 16, 2008
- Tadashi Kaji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Communications audit support system
- Publication number 20080219445
- Publication date Sep 11, 2008
- Akifumi Yato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Device and system for assisting printer selection through a network
- Publication number 20080158597
- Publication date Jul 3, 2008
- Yoko Hashimoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method for encrypted communication with a computer system and syste...
- Publication number 20080098221
- Publication date Apr 24, 2008
- Yoko Hashimoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Inter-client communication log management system
- Publication number 20080082650
- Publication date Apr 3, 2008
- Hitachi, Ltd.
- Osamu Takata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Data communication method and system
- Publication number 20070288754
- Publication date Dec 13, 2007
- Tadashi Kaji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Encrypted communication system, communication status management ser...
- Publication number 20070274525
- Publication date Nov 29, 2007
- Osamu Takata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Tadashi KAJI

Person

Patents Grantslast 30 patents

Method, product and apparatus for accelerating public-key certifica...

ID bridge service system and method thereof

Management server, communication apparatus and program implementing...

Encrypted communication system, communication status management ser...

Data communication method and data communication system

Device and system for assisting printer selection through a network

Mediating system and method to establish communication session, all...

Communication support server, communication support method, and com...

Service network system and server device

Method for encrypted communication with a computer system and syste...

Data communication method and system

System and method for encrypted communication

Data communication system enabling data communication between commu...

Encryption method for SIP message and encrypted SIP communication s...

Cryptographic communication system and method

Encryption communication method and system

Method and apparatus for accelerating public-key certificate valida...

Digital-signed digital document exchange supporting method and info...

Key allocating method and key allocation system for encrypted commu...

Authentication and authorization infrastructure system with CRL iss...

Distributed object system and service supply method therein

Patents Applicationslast 30 patents

SYSTEM SECURITY DESIGN SUPPORT DEVICE, AND SYSTEM SECURITY DESIGN S...

VULNERABILITY COUNTERMEASURE DEVICE AND VULNERABILITY COUNTERMEASUR...

SECURITY LEVEL VISUALIZATION DEVICE

PROGRAM ANALYSIS SYSTEM AND METHOD THEREOF

PROGRAM ANALYZING SYSTEM AND METHOD

AUTHENTICATION COLLABORATION SYSTEM AND AUTHENTICATION COLLABORATIO...

CONNECTION DESTINATION DETERMINATION DEVICE, CONNECTION DESTINATION...

ENCRYPTED TRAFFIC TEST SYSTEM

SERVICE LINKAGE DEVICE, PROGRAM, SERVICE LINKAGE METHOD, AND SERVIC...

SERVICE COLLABORATION SYSTEM

STREAMING DATA DELIVERY SYSTEM AND METHOD THEREOF

ID BRIDGE SERVICE SYSTEM AND METHOD THEREOF

MANAGEMENT SYSTEM FOR WARRANTING CONSISTENCY BETWEEN INTER-CLIENT C...

AUTHENTICATION INTERMEDIARY SERVER, PROGRAM, AUTHENTICATION SYSTEM...

SIP SERVER AND COMMUNICATION SYSTEM

INFORMATION PROVIDING SERVER, PROGRAM, INFORMATION PROVIDING METHOD...

METHOD, PRODUCT AND APPARATUS FOR ACCELERATING PUBLIC-KEY CERTIFICA...

AUTHENTICATION SERVER, AUTHENTICATION SYSTEM, AND AUTHENTICATION ME...

SERVICE NETWORK SYSTEM AND SERVER DEVICE

Network System

ACCESS AUTHORIZATION SYSTEM, ACCESS CONTROL SERVER, AND BUSINESS PR...

DATA COMMUNICATION SYSTEM

KEY ALLOCATING METHOD AND KEY ALLOCATION SYSTEM FOR ENCRYPTED COMMU...

Data communication system and session management server

Communications audit support system

Device and system for assisting printer selection through a network

Method for encrypted communication with a computer system and syste...

Inter-client communication log management system

Data communication method and system

Encrypted communication system, communication status management ser...