Inventor
KAWAMURA NOBUO
JP89 patents
⚠️ This page may combine multiple inventors who share the name “KAWAMURA NOBUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
42 patentsUS7890461B2Feb 15, 2011
System executing log data transfer synchronously and database data transfer asynchronously
HITACHI LTD215 citations99
US6567806B1May 20, 2003
System and method for implementing hash-based load-balancing query processing in a multiprocessor database system
HITACHI LTD108 citations99
US6026394AFeb 15, 2000
System and method for implementing parallel operations in a database management system
HITACHI LTD173 citations99
US5806059ASep 8, 1998
Database management system and method for query process for the same
HITACHI LTD153 citations99
US5778388AJul 7, 1998
Method of processing a synchronization point in a database management system to assure a database version using update logs from accumulated transactions
HITACHI LTD174 citations99
US7890467B2Feb 15, 2011
Method for verifying data consistency of backup system, program and storage medium
HITACHI LTD90 citations98
US7577694B2Aug 18, 2009
Database management system with rebalance architectures
HITACHI LTD101 citations98
US7353335B2Apr 1, 2008
Storage control method for database recovery in logless mode
HITACHI LTD78 citations98
US7031984B2Apr 18, 2006
Disaster recovery processing method and apparatus and storage unit for the same
HITACHI LTD64 citations98
US6256621B1Jul 3, 2001
Database management system and query operation therefor, including processing plural database operation requests based on key range of hash code
HITACHI LTD85 citations98
US6801921B2Oct 5, 2004
Method and system for managing multiple database storage units
HITACHI LTD53 citations96
US6578039B1Jun 10, 2003
Database management methods and equipment, and database management program storage media
HITACHI LTD56 citations96
US6556986B2Apr 29, 2003
Database management method of invoking a function retrieving index type definition, cataloging particular index which has not yet been supported by a database system
HITACHI LTD43 citations96
US5806058ASep 8, 1998
Index managing method in database managing system
HITACHI LTD83 citations96
US5758356AMay 26, 1998
High concurrency and recoverable B-tree index management method and system
HITACHI LTD157 citations96
US5237661AAug 17, 1993
Buffer management method and system therefor using an I/O buffer on main memory and utilizing virtual memory and page fixing
HITACHI LTD91 citations96
US7991749B2Aug 2, 2011
Database recovery method applying update journal and database log
HITACHI LTD42 citations93
US7860824B2Dec 28, 2010
System and method of disaster recovery
HITACHI LTD34 citations93
US7321907B2Jan 22, 2008
Method and system for managing multiple database storage units
HITACHI LTD22 citations93
US6829623B2Dec 7, 2004
Method and system for managing multiple database storage units
HITACHI LTD20 citations93
US6556988B2Apr 29, 2003
Database management apparatus and query operation therefor, including processing plural database operation requests based on key range of hash code
HITACHI LTD23 citations92
US6427145B1Jul 30, 2002
Database processing method, apparatus for carrying out the same and medium storing processing program
HITACHI LTD26 citations92
US6349305B1Feb 19, 2002
Method and system for database processing by invoking a function related to index type definition, generating an execution plan based on index type name
HITACHI LTD15 citations92
US6003043ADec 14, 1999
Text data registering and retrieving system including a database storing a plurality of document files therin and a plural-character occurrence table for a text index and an update text buffer to retrieve a target document in cooperation with the database
HITACHI LTD46 citations92
US7865772B2Jan 4, 2011
Management device and management method
HITACHI LTD8 citations84
US7797572B2Sep 14, 2010
Computer system management method, management server, computer system, and program
HITACHI LTD14 citations84
US7668874B2Feb 23, 2010
Disaster recovery processing method and apparatus and storage unit for the same
HITACHI LTD8 citations84
US7657584B2Feb 2, 2010
Reorganization method of database and a database reorganization system
HITACHI LTD16 citations84
US7587430B2Sep 8, 2009
Backup system for data base
HITACHI LTD10 citations84
US7506012B2Mar 17, 2009
Method and computer system for allocating database data based on access frequency
HITACHI LTD11 citations84
US7472139B2Dec 30, 2008
Database recovery method applying update journal and database log
HITACHI LTD9 citations84
US7124139B2Oct 17, 2006
Method and apparatus for managing faults in storage system having job management function
HITACHI LTD13 citations84
US7039660B2May 2, 2006
Disaster recovery processing method and apparatus and storage unit for the same
HITACHI LTD14 citations84
US7020744B2Mar 28, 2006
Computer system
HITACHI LTD11 citations84
US7526469B2Apr 28, 2009
Method and system of database management with shared area
HITACHI LTD10 citations82
US7293194B2Nov 6, 2007
Method and device for switching database access part from for-standby to currently in use
HITACHI LTD19 citations82
US7194486B2Mar 20, 2007
Method and system for data processing with data replication for the same
HITACHI LTD10 citations82
US7194575B2Mar 20, 2007
Automatic disk mirroring according to workload
HITACHI LTD12 citations79
US7284022B2Oct 16, 2007
Database management methods and equipment and database management program storage media
HITACHI LTD9 citations74
US7194675B2Mar 20, 2007
Backup method, backup system, disk controller and backup program
HITACHI LTD8 citations74
US10515078B2Dec 24, 2019
Database management apparatus, database management method, and storage medium
HITACHI LTD2 citations73
US6675160B2Jan 6, 2004
Database processing method, apparatus for carrying out the same and medium storing processing program
HITACHI LTD10 citations73
HITACHI SOFTWARE ENG
1 patentTOSHIBA BATTERY
1 patentSUZUKI YOSHIO
1 patentSHIMIZU AKIRA
1 patentTANAKA MICHIKO
1 patentTOSHIBA KK
1 patentYOSHIDA MICHIKO
1 patentKAWAMURA NOBUO
1 patentShowing the top 50 of 89 patents by PatentIndex Score.