Inventor · disambiguated record
Norifumi Nishikawa
Also filed as: NISHIKAWA NORIFUMI
65 granted patents·14 pending applications·997 citations·filing 1995–2025
99Inventor score
Top patents by PatentIndex Score
79 records- 0198US7694070B2Computer system for managing performances of storage apparatus and performance management method of the computer systemHITACHI LTD·Filed 2006·Granted Apr 6, 2010·173 cites·28 claims
- 0295US7991749B2Database recovery method applying update journal and database logHITACHI LTD·Filed 2008·Granted Aug 2, 2011·42 cites·6 claims
- 0394US6882994B2Method and system for querying database, as well as a recording medium for storing a database querying programHITACHI LTD·Filed 2001·Granted Apr 19, 2005·130 cites·28 claims
- 0493US6944711B2Cache management method for storage deviceHITACHI LTD·Filed 2003·Granted Sep 13, 2005·86 cites·29 claims
- 0589US7266718B2Computer system for recovering data based on priority of the dataHITACHI LTD·Filed 2004·Granted Sep 4, 2007·56 cites·8 claims
- 0689US7089347B2Computer system for managing performances of storage apparatus and performance management method of the computer systemHITACHI LTD·Filed 2003·Granted Aug 8, 2006·54 cites·36 claims
- 0787US7693816B2Computer system, computer, data access method and database systemHITACHI LTD·Filed 2005·Granted Apr 6, 2010·30 cites·7 claims
- 0884US6807575B1Performance monitoring method in a distributed processing systemHITACHI LTD·Filed 2000·Granted Oct 19, 2004·45 cites·9 claims
- 0983US7096319B2Cache memory managing method for computer systemHITACHI LTD·Filed 2004·Granted Aug 22, 2006·29 cites·22 claims
- 1082US2025390495A1Database management apparatus and methodHITACHI LTD·Filed 2025·Application pending·0 cites
- 1181US10853365B2Database management system, computer, and database management methodHITACHI LTD·Filed 2014·Granted Dec 1, 2020·6 cites·13 claims
- 1281US7506012B2Method and computer system for allocating database data based on access frequencyHITACHI LTD·Filed 2005·Granted Mar 17, 2009·11 cites·13 claims
- 1380US7472139B2Database recovery method applying update journal and database logHITACHI LTD·Filed 2006·Granted Dec 30, 2008·9 cites·12 claims
- 1479US7475347B2Computer system and method for reducing power consumption of storage systemHITACHI LTD·Filed 2006·Granted Jan 6, 2009·3 cites·20 claims
- 1578US7325096B2Computer system, storage subsystem, and write processing control methodHITACHI LTD·Filed 2005·Granted Jan 29, 2008·9 cites·13 claims
- 1677US7865772B2Management device and management methodHITACHI LTD·Filed 2008·Granted Jan 4, 2011·8 cites·7 claims
- 1777US7693879B2Database system including center server and local serversHITACHI LTD·Filed 2007·Granted Apr 6, 2010·7 cites·2 claims
- 1877US7107291B2Information system and data access methodHITACHI LTD·Filed 2005·Granted Sep 12, 2006·9 cites·6 claims
- 1977US7092971B2Prefetch appliance serverHITACHI LTD·Filed 2003·Granted Aug 15, 2006·22 cites·18 claims
- 2074US6996680B2Data prefetching methodHITACHI LTD·Filed 2003·Granted Feb 7, 2006·19 cites·20 claims
- 2173US8036076B2Method of reducing storage power consumption by use of prefetch and computer system using the sameHITACHI LTD·Filed 2008·Granted Oct 11, 2011·2 cites·9 claims
- 2273US7197519B2Database system including center server and local serversHITACHI LTD·Filed 2003·Granted Mar 27, 2007·16 cites·18 claims
- 2372US7313662B2Computer systemHITACHI LTD·Filed 2006·Granted Dec 25, 2007·4 cites·14 claims
- 2471US7552138B2Method and apparatus for managing faults in storage system having job management functionHITACHI LTD·Filed 2005·Granted Jun 23, 2009·4 cites·4 claims
- 2571US7509331B2Method and apparatus for managing faults in storage system having job management functionHITACHI LTD·Filed 2005·Granted Mar 24, 2009·4 cites·7 claims
- 2671US7124139B2Method and apparatus for managing faults in storage system having job management functionHITACHI LTD·Filed 2003·Granted Oct 17, 2006·13 cites·6 claims
- 2771US5946689ADistributed database system and method of detecting contention in data update involved in replication of database dataHITACHI LTD·Filed 1997·Granted Aug 31, 1999·73 cites·18 claims
- 2870US12430334B2Database management apparatus and methodHITACHI LTD·Filed 2023·Granted Sep 30, 2025·0 cites·11 claims
- 2969US7136862B2Method for creation and management of virtual volumes for DBMsHITACHI LTD·Filed 2003·Granted Nov 14, 2006·14 cites·38 claims
- 3069US7020744B2Computer systemHITACHI LTD·Filed 2004·Granted Mar 28, 2006·11 cites·4 claims
- 3168US7395371B2Method of controlling a database management system by changing allocation of cache memoryHITACHI LTD·Filed 2005·Granted Jul 1, 2008·4 cites·21 claims
- 3265US8447945B2Storage apparatus and storage system including storage media having different performancesNISHIKAWA NORIFUMI·Filed 2010·Granted May 21, 2013·2 cites·12 claims
- 3364US7512680B2System monitoring methodHITACHI LTD·Filed 2004·Granted Mar 31, 2009·10 cites·17 claims
- 3463US7284014B2Pre-fetch computer systemHITACHI LTD·Filed 2004·Granted Oct 16, 2007·9 cites·10 claims
- 3563US7080084B2Method for changing database construction informationHITACHI LTD·Filed 2003·Granted Jul 18, 2006·19 cites·9 claims
- 3662US7865514B2Computer system and database management method using the sameHITACHI LTD·Filed 2008·Granted Jan 4, 2011·2 cites·5 claims
- 3762US7113951B2Method and system for detecting tables to be modifiedHITACHI LTD·Filed 2003·Granted Sep 26, 2006·8 cites·12 claims
- 3860US8196034B2Computer system and method for reducing power consumption of storage systemIDEI HIDEOMI·Filed 2008·Granted Jun 5, 2012·2 cites·17 claims
- 3959US9870152B2Management system and management method for managing data units constituting schemas of a databaseIDEI HIDEOMI·Filed 2012·Granted Jan 16, 2018·1 cites·20 claims
- 4059US8286163B2Coupling between server and storage apparatus using detected I/O adaptor and allowing application execution based on access group and port connection group in virtualized environmentSHINOHARA DAISUKE·Filed 2009·Granted Oct 9, 2012·2 cites·10 claims
- 4159US7237066B2Cache memory managing method for computer systemHITACHI LTD·Filed 2006·Granted Jun 26, 2007·1 cites·22 claims
- 4259US7139889B2Computer systemHITACHI LTD·Filed 2005·Granted Nov 21, 2006·1 cites·18 claims
- 4358US8751657B2Multi-client storage system and storage system management methodNISHIKAWA NORIFUMI·Filed 2011·Granted Jun 10, 2014·1 cites·6 claims
- 4458US2024346172A1Data disclosure apparatus, and data disclosure methodHITACHI LTD·Filed 2024·Application pending·0 cites
- 4558US2025291812A1Integration device, integration method, and recording mediumHITACHI LTD·Filed 2024·Application pending·0 cites
- 4657US12487973B2Update method and database update apparatusHITACHI LTD·Filed 2024·Granted Dec 2, 2025·0 cites·2 claims
- 4757US7441082B2Storage-device resource allocation method and storage deviceHITACHI LTD·Filed 2005·Granted Oct 21, 2008·1 cites·6 claims
- 4856US11914603B2Data layout model generation systemHITACHI LTD·Filed 2022·Granted Feb 27, 2024·0 cites·10 claims
- 4956US7171423B2Information processing system and system setting methodHITACHI LTD·Filed 2003·Granted Jan 30, 2007·13 cites·28 claims
- 5053US12056129B2Computer system and query processing methodHITACHI LTD·Filed 2023·Granted Aug 6, 2024·0 cites·6 claims
Showing the top 50 of 79 patent records by PatentIndex Score.
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