Inventor · disambiguated record
Tomohiro Kawaguchi
Also filed as: KAWAGUCHI TOMOHIRO
134 granted patents·26 pending applications·469 citations·filing 1985–2025
99Inventor score
Top patents by PatentIndex Score
160 records- 0198US11048546B1Information processing system and information processing method with high availability during failover caused by fault occuranceHITACHI LTD·Filed 2020·Granted Jun 29, 2021·14 cites·7 claims
- 0297US11321196B1Disaster recovery collaborated with storage system and backup appliance in hybrid cloud environmentHITACHI LTD·Filed 2021·Granted May 3, 2022·11 cites·13 claims
- 0397US9152337B2Storage apparatus and storage apparatus migration methodHITACHI LTD·Filed 2014·Granted Oct 6, 2015·44 cites·15 claims
- 0497US8407409B2Metrics and management for flash memory storage lifeKAWAGUCHI TOMOHIRO·Filed 2012·Granted Mar 26, 2013·39 cites·18 claims
- 0596US10956063B2Virtual storage systemHITACHI LTD·Filed 2019·Granted Mar 23, 2021·12 cites·9 claims
- 0695US10969985B1Storage system and control method thereofHITACHI LTD·Filed 2020·Granted Apr 6, 2021·4 cites·13 claims
- 0795US10452293B2Virtual storage systemHITACHI LTD·Filed 2017·Granted Oct 22, 2019·12 cites·19 claims
- 0894US11579780B1Volume remote copy based on application priorityHITACHI LTD·Filed 2021·Granted Feb 14, 2023·3 cites·13 claims
- 0994US11106371B1I/O path reservation with out of band managementHITACHI LTD·Filed 2020·Granted Aug 31, 2021·4 cites·15 claims
- 1093US10628088B2Computer systemHITACHI LTD·Filed 2015·Granted Apr 21, 2020·12 cites·15 claims
- 1193US7904749B2Fast data recovery from HDD failureHITACHI LTD·Filed 2008·Granted Mar 8, 2011·24 cites·20 claims
- 1291US11693684B2Information processing system and information processing methodHITACHI LTD·Filed 2021·Granted Jul 4, 2023·2 cites·8 claims
- 1390US7594137B2Storage system and data restoration method thereofHITACHI LTD·Filed 2006·Granted Sep 22, 2009·18 cites·23 claims
- 1487US8639969B2Fast data recovery from HDD failureKAWAGUCHI TOMOHIRO·Filed 2012·Granted Jan 28, 2014·7 cites·15 claims
- 1587US8356147B2Tiered storage pool management and control for loosely coupled multiple storage environmentHITACHI LTD·Filed 2010·Granted Jan 15, 2013·8 cites·9 claims
- 1686US11080081B2Virtual machine and volume allocation in hyperconverged infrastructure environment and storage systemHITACHI LTD·Filed 2019·Granted Aug 3, 2021·3 cites·11 claims
- 1786US11080080B2Virtual machine and volume allocation in hyperconverged infrastructure environment and storage systemHITACHI LTD·Filed 2019·Granted Aug 3, 2021·3 cites·12 claims
- 1885US8904133B1Storage apparatus and storage apparatus migration methodHITACHI LTD·Filed 2014·Granted Dec 2, 2014·6 cites·20 claims
- 1984US11663029B2Virtual machine storage controller selection in hyperconverged infrastructure environment and storage systemHITACHI LTD·Filed 2021·Granted May 30, 2023·1 cites·5 claims
- 2084US10817209B2Storage controller and storage control methodHITACHI LTD·Filed 2019·Granted Oct 27, 2020·4 cites·12 claims
- 2184US8166232B2Metrics and management for flash memory storage lifeKAWAGUCHI TOMOHIRO·Filed 2009·Granted Apr 24, 2012·11 cites·20 claims
- 2283US10114691B2Information storage systemHITACHI LTD·Filed 2014·Granted Oct 30, 2018·8 cites·7 claims
- 2383US8250031B2Low traffic failback remote copyKAWAGUCHI TOMOHIRO·Filed 2008·Granted Aug 21, 2012·10 cites·11 claims
- 2483US8060468B2Storage system and data recovery methodDEGUCHI AKIRA·Filed 2008·Granted Nov 15, 2011·13 cites·15 claims
- 2582US11112971B2Storage device, data management method, and data management programHITACHI LTD·Filed 2018·Granted Sep 7, 2021·3 cites·13 claims
- 2682US10592268B2Management computer and resource management method configured to combine server resources and storage resources and allocate the combined resources to virtual machinesHITACHI LTD·Filed 2015·Granted Mar 17, 2020·4 cites·8 claims
- 2782US9176858B2Storage system configured to selectively utilize data compression based on real pool usage ratesHITACHI LTD·Filed 2012·Granted Nov 3, 2015·7 cites·15 claims
- 2882US8453011B2Storage system and data restoration method thereofKAWAGUCHI TOMOHIRO·Filed 2011·Granted May 28, 2013·5 cites·19 claims
- 2982US8131927B2Fast accessible compressed thin provisioning volumeKAWAGUCHI TOMOHIRO·Filed 2007·Granted Mar 6, 2012·9 cites·42 claims
- 3082US8041914B2Storage system comprising function for reducing power consumptionHITACHI LTD·Filed 2008·Granted Oct 18, 2011·9 cites·22 claims
- 3181US8234519B2Fast data recovery from HDD failureKAWAGUCHI TOMOHIRO·Filed 2011·Granted Jul 31, 2012·4 cites·20 claims
- 3279US11307944B2Automated failover for asynchronous remote copyHITACHI LTD·Filed 2020·Granted Apr 19, 2022·1 cites·14 claims
- 3379US8719220B2Low traffic failback remote copyKAWAGUCHI TOMOHIRO·Filed 2012·Granted May 6, 2014·4 cites·16 claims
- 3478US11221935B2Information processing system, information processing system management method, and program thereofHITACHI LTD·Filed 2019·Granted Jan 11, 2022·2 cites·12 claims
- 3578US8447943B2Reduction of I/O latency for writable copy-on-write snapshot functionKAWAGUCHI TOMOHIRO·Filed 2010·Granted May 21, 2013·5 cites·20 claims
- 3677US8965856B2Increase in deduplication efficiency for hierarchical storage systemKAWAGUCHI TOMOHIRO·Filed 2011·Granted Feb 24, 2015·4 cites·10 claims
- 3777US7917805B2Storage system for restoring data stored in failed storage deviceHITACHI LTD·Filed 2008·Granted Mar 29, 2011·6 cites·8 claims
- 3877US6624636B2Method and apparatus for estimating terminal voltage of battery, method and apparatus for computing open circuit voltage of battery, and method and apparatus for computing battery capacityYAZAKI CORP·Filed 2002·Granted Sep 23, 2003·18 cites·20 claims
- 3976US10528279B2Storage management server, method of controlling storage management server, and computer systemHITACHI LTD·Filed 2016·Granted Jan 7, 2020·2 cites·12 claims
- 4076US8898384B2Fast accessible compressed thin provisioning volumeKAWAGUCHI TOMOHIRO·Filed 2011·Granted Nov 25, 2014·3 cites·11 claims
- 4176US8010837B2Storage sub system and data restoration method thereofHITACHI LTD·Filed 2009·Granted Aug 30, 2011·5 cites·23 claims
- 4275US10394662B2Storage apparatus and storage apparatus migration methodHITACHI LTD·Filed 2017·Granted Aug 27, 2019·1 cites·3 claims
- 4375US9632701B2Storage systemHITACHI LTD·Filed 2014·Granted Apr 25, 2017·3 cites·12 claims
- 4475US9213497B2Storage apparatus and storage apparatus migration methodHITACHI LTD·Filed 2012·Granted Dec 15, 2015·4 cites·4 claims
- 4575US8943286B1Storage systemHITACHI LTD·Filed 2014·Granted Jan 27, 2015·3 cites·14 claims
- 4674US10776035B2Storage system and storage control methodHITACHI LTD·Filed 2019·Granted Sep 15, 2020·1 cites·15 claims
- 4774US9189335B2Fast data recovery from HDD failureHITACHI LTD·Filed 2013·Granted Nov 17, 2015·2 cites·14 claims
- 4873US11144202B2Volume management apparatus, volume management method, and volume management programHITACHI LTD·Filed 2019·Granted Oct 12, 2021·1 cites·11 claims
- 4972US10656849B2Storage system and control method thereofHITACHI LTD·Filed 2018·Granted May 19, 2020·1 cites·11 claims
- 5072US9563383B2Storage system with primary and secondary data storage groups and control method thereofHITACHI LTD·Filed 2014·Granted Feb 7, 2017·3 cites·9 claims
Showing the top 50 of 160 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →