Inventor · disambiguated record
Keishi Tamura
Also filed as: TAMURA KEISHI
39 granted patents·4 pending applications·396 citations·filing 2001–2017
97Inventor score
Top patents by PatentIndex Score
43 records- 0197US9152337B2Storage apparatus and storage apparatus migration methodHITACHI LTD·Filed 2014·Granted Oct 6, 2015·44 cites·15 claims
- 0294US6728848B2Method and system for backing up storage system dataHITACHI LTD·Filed 2001·Granted Apr 27, 2004·91 cites·33 claims
- 0393US7337264B2Storage control system and method which converts file level data into block level data which is stored at different destinations based on metadata of files being managedHITACHI LTD·Filed 2006·Granted Feb 26, 2008·28 cites·12 claims
- 0492US9092142B2Storage system and method of controlling the sameNASHIMOTO KUNIHIKO·Filed 2012·Granted Jul 28, 2015·27 cites·16 claims
- 0591US7143228B2Storage control system and method for storing block level data in internal or external storage control system based on control information via networksHITACHI LTD·Filed 2004·Granted Nov 28, 2006·55 cites·15 claims
- 0685US8904133B1Storage apparatus and storage apparatus migration methodHITACHI LTD·Filed 2014·Granted Dec 2, 2014·6 cites·20 claims
- 0784US8086768B2Storage system and control method of storage systemWATANABE YUTAKA·Filed 2008·Granted Dec 27, 2011·12 cites·7 claims
- 0882US7526618B2Storage control systemHITACHI LTD·Filed 2006·Granted Apr 28, 2009·11 cites·11 claims
- 0978US7441095B2Storage system and storage controllerHITACHI LTD·Filed 2004·Granted Oct 21, 2008·22 cites·7 claims
- 1078US7421553B2Remote copy operation between different sort of storage system and storage device systemHITACHI LTD·Filed 2006·Granted Sep 2, 2008·8 cites·29 claims
- 1177US7447859B2Method of performing active data copying processing, and storage subsystem and storage control apparatus for performing active data copying processingHITACHI LTD·Filed 2007·Granted Nov 4, 2008·6 cites·6 claims
- 1277US7124258B2Storage system and storage device systemHITACHI LTD·Filed 2004·Granted Oct 17, 2006·21 cites·34 claims
- 1375US10394662B2Storage apparatus and storage apparatus migration methodHITACHI LTD·Filed 2017·Granted Aug 27, 2019·1 cites·3 claims
- 1473US7493466B2Virtualization system for virtualizing disks drives of a disk array systemHITACHI LTD·Filed 2006·Granted Feb 17, 2009·5 cites·80 claims
- 1573US7424582B2Storage system, formatting method and computer program to enable high speed physical formattingHITACHI LTD·Filed 2005·Granted Sep 9, 2008·7 cites·14 claims
- 1673US7117331B2Storage control systemHITACHI LTD·Filed 2004·Granted Oct 3, 2006·14 cites·11 claims
- 1770US7636818B2Storage virtualization system and methodHITACHI LTD·Filed 2006·Granted Dec 22, 2009·5 cites·18 claims
- 1870US7475213B2Storage control system and storage control methodHITACHI LTD·Filed 2005·Granted Jan 6, 2009·4 cites·12 claims
- 1966US10191685B2Storage system, storage device, and data transfer methodHITACHI LTD·Filed 2014·Granted Jan 29, 2019·2 cites·14 claims
- 2065US7373474B2Storage system, configuration management method, and programHITACHI LTD·Filed 2005·Granted May 13, 2008·4 cites·6 claims
- 2165US7343464B2Storage controller and storage systemHITACHI LTD·Filed 2005·Granted Mar 11, 2008·3 cites·14 claims
- 2265US7237083B2Storage control systemHITACHI LTD·Filed 2006·Granted Jun 26, 2007·2 cites·11 claims
- 2363US7165157B2Method of performing active data copying processing, and storage subsystem and storage control apparatus for performing active data copying processingHITACHI LTD·Filed 2003·Granted Jan 16, 2007·8 cites·4 claims
- 2462US7228397B2Method and system for backing up storage system dataHITACHI LTD·Filed 2004·Granted Jun 5, 2007·6 cites·17 claims
- 2561US9021224B2Method and apparatus for enhanced computer securityTANAKA DAISUKE·Filed 2011·Granted Apr 28, 2015·1 cites·6 claims
- 2661US7966448B2Storage apparatus and data writing methodHITACHI LTD·Filed 2008·Granted Jun 21, 2011·2 cites·10 claims
- 2758US7519786B2Storage system, storage access restriction method and computer program productHITACHI LTD·Filed 2005·Granted Apr 14, 2009·1 cites·13 claims
- 2856US9846619B2Storage apparatus and storage apparatus migration methodHITACHI LTD·Filed 2015·Granted Dec 19, 2017·0 cites·21 claims
- 2954US9003145B2Management server and data migration methodHITACHI LTD·Filed 2014·Granted Apr 7, 2015·0 cites·9 claims
- 3054US7844794B2Storage system with cache threshold controlHITACHI LTD·Filed 2008·Granted Nov 30, 2010·0 cites·11 claims
- 3154US7769968B2Storage control systemHITACHI LTD·Filed 2009·Granted Aug 3, 2010·0 cites·11 claims
- 3254US7707357B2Storage control system and method having first and second channel control sections which convert file level data to block level data, judge whether block level data is to be stored in external storage and identifies save destination address of file level data based on metadataHITACHI LTD·Filed 2007·Granted Apr 27, 2010·0 cites·12 claims
- 3352US7673107B2Storage system and storage control deviceHITACHI LTD·Filed 2007·Granted Mar 2, 2010·0 cites·15 claims
- 3452US7587567B2Storage control systemHITACHI LTD·Filed 2007·Granted Sep 8, 2009·0 cites·10 claims
- 3551US2007214294A1Method and System for Backing Up Storage System DataHITACHI LTD·Filed 2007·Application pending·0 cites
- 3651US2007177413A1Storage system and storage control deviceOKUMOTO KATSUHIRO·Filed 2007·Application pending·0 cites
- 3748US9311012B2Storage system and method for migrating the sameHITACHI LTD·Filed 2014·Granted Apr 12, 2016·0 cites·14 claims
- 3846US10248511B2Storage system having multiple local and remote volumes and multiple journal volumes using dummy journals for sequence controlHITACHI LTD·Filed 2014·Granted Apr 2, 2019·0 cites·12 claims
- 3944US2009144466A1Storage apparatus, storage system and path information setting methodHITACHI LTD·Filed 2008·Application pending·0 cites
- 4042US10140035B2Method for appropriately controlling duplicated volumes in virtual volume subsystemsHITACHI LTD·Filed 2014·Granted Nov 27, 2018·0 cites·13 claims
- 4141US9680933B2Computer systemHITACHI LTD·Filed 2013·Granted Jun 13, 2017·0 cites·9 claims
- 4241US8832386B2Management server and data migration methodSAWA KENICHI·Filed 2011·Granted Sep 9, 2014·0 cites·8 claims
- 4340US2009138630A1Storage system and external volume connection path searching method for storage systemYASUTA KOJI·Filed 2008·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →