Inventor · disambiguated record
Nobuo Kawamura
Also filed as: KAWAMURA NOBUO
89 granted patents·23 pending applications·2,343 citations·filing 1989–2019
99Inventor score
Top patents by PatentIndex Score
112 records- 0198US7890461B2System executing log data transfer synchronously and database data transfer asynchronouslyHITACHI LTD·Filed 2004·Granted Feb 15, 2011·215 cites·11 claims
- 0298US7577694B2Database management system with rebalance architecturesHITACHI LTD·Filed 2006·Granted Aug 18, 2009·101 cites·4 claims
- 0397US7890467B2Method for verifying data consistency of backup system, program and storage mediumHITACHI LTD·Filed 2007·Granted Feb 15, 2011·90 cites·7 claims
- 0497US7353335B2Storage control method for database recovery in logless modeHITACHI LTD·Filed 2006·Granted Apr 1, 2008·78 cites·18 claims
- 0596US6567806B1System and method for implementing hash-based load-balancing query processing in a multiprocessor database systemHITACHI LTD·Filed 2000·Granted May 20, 2003·108 cites·30 claims
- 0695US7991749B2Database recovery method applying update journal and database logHITACHI LTD·Filed 2008·Granted Aug 2, 2011·42 cites·6 claims
- 0794US6026394ASystem and method for implementing parallel operations in a database management systemHITACHI LTD·Filed 1998·Granted Feb 15, 2000·173 cites·31 claims
- 0893US7860824B2System and method of disaster recoveryHITACHI LTD·Filed 2007·Granted Dec 28, 2010·34 cites·18 claims
- 0993US5806059ADatabase management system and method for query process for the sameHITACHI LTD·Filed 1997·Granted Sep 8, 1998·153 cites·16 claims
- 1091US6801921B2Method and system for managing multiple database storage unitsHITACHI LTD·Filed 2001·Granted Oct 5, 2004·53 cites·17 claims
- 1190US5778388AMethod of processing a synchronization point in a database management system to assure a database version using update logs from accumulated transactionsHITACHI LTD·Filed 1995·Granted Jul 7, 1998·174 cites·13 claims
- 1289US6556986B2Database management method of invoking a function retrieving index type definition, cataloging particular index which has not yet been supported by a database systemHITACHI LTD·Filed 2001·Granted Apr 29, 2003·43 cites·8 claims
- 1387US6256621B1Database management system and query operation therefor, including processing plural database operation requests based on key range of hash codeHITACHI LTD·Filed 1999·Granted Jul 3, 2001·85 cites·23 claims
- 1486US7031984B2Disaster recovery processing method and apparatus and storage unit for the sameHITACHI LTD·Filed 2003·Granted Apr 18, 2006·64 cites·17 claims
- 1586US6578039B1Database management methods and equipment, and database management program storage mediaHITACHI LTD·Filed 2000·Granted Jun 10, 2003·56 cites·14 claims
- 1686US5758356AHigh concurrency and recoverable B-tree index management method and systemHITACHI LTD·Filed 1995·Granted May 26, 1998·157 cites·8 claims
- 1785US7657584B2Reorganization method of database and a database reorganization systemHITACHI LTD·Filed 2005·Granted Feb 2, 2010·16 cites·8 claims
- 1885US7293194B2Method and device for switching database access part from for-standby to currently in useHITACHI LTD·Filed 2005·Granted Nov 6, 2007·19 cites·9 claims
- 1984US7797572B2Computer system management method, management server, computer system, and programHITACHI LTD·Filed 2007·Granted Sep 14, 2010·14 cites·27 claims
- 2084US6371996B1Manufacturing method of batteriesTOSHIBA BATTERY·Filed 2000·Granted Apr 16, 2002·34 cites·11 claims
- 2182US7321907B2Method and system for managing multiple database storage unitsHITACHI LTD·Filed 2004·Granted Jan 22, 2008·22 cites·4 claims
- 2281US7506012B2Method and computer system for allocating database data based on access frequencyHITACHI LTD·Filed 2005·Granted Mar 17, 2009·11 cites·13 claims
- 2381US5237661ABuffer management method and system therefor using an I/O buffer on main memory and utilizing virtual memory and page fixingHITACHI LTD·Filed 1990·Granted Aug 17, 1993·91 cites·3 claims
- 2480US7587430B2Backup system for data baseHITACHI LTD·Filed 2006·Granted Sep 8, 2009·10 cites·6 claims
- 2580US7472139B2Database recovery method applying update journal and database logHITACHI LTD·Filed 2006·Granted Dec 30, 2008·9 cites·12 claims
- 2680US6829623B2Method and system for managing multiple database storage unitsHITACHI LTD·Filed 2001·Granted Dec 7, 2004·20 cites·23 claims
- 2780US6427145B1Database processing method, apparatus for carrying out the same and medium storing processing programHITACHI LTD·Filed 2000·Granted Jul 30, 2002·26 cites·14 claims
- 2878US5806058AIndex managing method in database managing systemHITACHI LTD·Filed 1996·Granted Sep 8, 1998·83 cites·17 claims
- 2977US7865772B2Management device and management methodHITACHI LTD·Filed 2008·Granted Jan 4, 2011·8 cites·7 claims
- 3077US7692370B2Image display apparatusCANON KK·Filed 2007·Granted Apr 6, 2010·4 cites·6 claims
- 3177US7526469B2Method and system of database management with shared areaHITACHI LTD·Filed 2005·Granted Apr 28, 2009·10 cites·6 claims
- 3276US9348866B2Database processing method, database processing system and database serverTANAKA MICHIKO·Filed 2011·Granted May 24, 2016·5 cites·13 claims
- 3376US6556988B2Database management apparatus and query operation therefor, including processing plural database operation requests based on key range of hash codeHITACHI LTD·Filed 2001·Granted Apr 29, 2003·23 cites·3 claims
- 3475US8681289B2Lighting device and liquid crystal display apparatus comprising the sameTAKAHASHI KEN·Filed 2012·Granted Mar 25, 2014·2 cites·17 claims
- 3575US5317727AMethod apparatus for determining prefetch operating for a data baseHITACHI SOFTWARE ENG·Filed 1989·Granted May 31, 1994·52 cites·18 claims
- 3674US8554733B2Disaster recovery method, disaster recovery system, remote copy method and storage systemSUZUKI YOSHIO·Filed 2005·Granted Oct 8, 2013·7 cites·9 claims
- 3772US8905598B2Lighting deviceTOSHIBA KK·Filed 2013·Granted Dec 9, 2014·4 cites·15 claims
- 3872US7313662B2Computer systemHITACHI LTD·Filed 2006·Granted Dec 25, 2007·4 cites·14 claims
- 3971US7562103B2Disaster recovery processing method and apparatus and storage unit for the sameHITACHI LTD·Filed 2005·Granted Jul 14, 2009·4 cites·2 claims
- 4071US7552138B2Method and apparatus for managing faults in storage system having job management functionHITACHI LTD·Filed 2005·Granted Jun 23, 2009·4 cites·4 claims
- 4171US7509331B2Method and apparatus for managing faults in storage system having job management functionHITACHI LTD·Filed 2005·Granted Mar 24, 2009·4 cites·7 claims
- 4271US7124139B2Method and apparatus for managing faults in storage system having job management functionHITACHI LTD·Filed 2003·Granted Oct 17, 2006·13 cites·6 claims
- 4370US8510316B2Database processing system and methodSHIMIZU AKIRA·Filed 2009·Granted Aug 13, 2013·5 cites·13 claims
- 4469US8161006B2Database management method, database management apparatus, and database management programKAWAMURA NOBUO·Filed 2009·Granted Apr 17, 2012·6 cites·6 claims
- 4569US7020744B2Computer systemHITACHI LTD·Filed 2004·Granted Mar 28, 2006·11 cites·4 claims
- 4668US10515078B2Database management apparatus, database management method, and storage mediumHITACHI LTD·Filed 2013·Granted Dec 24, 2019·2 cites·14 claims
- 4767US10747773B2Database management system, computer, and database management methodYOSHIDA MICHIKO·Filed 2012·Granted Aug 18, 2020·3 cites·14 claims
- 4866US7284022B2Database management methods and equipment and database management program storage mediaHITACHI LTD·Filed 2003·Granted Oct 16, 2007·9 cites·10 claims
- 4966US6675160B2Database processing method, apparatus for carrying out the same and medium storing processing programHITACHI LTD·Filed 2002·Granted Jan 6, 2004·10 cites·4 claims
- 5066US6349305B1Method and system for database processing by invoking a function related to index type definition, generating an execution plan based on index type nameHITACHI LTD·Filed 2000·Granted Feb 19, 2002·15 cites·6 claims
Showing the top 50 of 112 patent records by PatentIndex Score.
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