Inventor · disambiguated record
Yuichi Yagawa
Also filed as: YAGAWA YUICHI
57 granted patents·14 pending applications·2,036 citations·filing 1994–2015
99Inventor score
Top patents by PatentIndex Score
71 records- 0197US7383462B2Method and apparatus for encrypted remote copy for secure data backup and restorationHITACHI LTD·Filed 2004·Granted Jun 3, 2008·210 cites·52 claims
- 0297US7165158B1System and method for migrating a replication systemHITACHI LTD·Filed 2005·Granted Jan 16, 2007·81 cites·20 claims
- 0397US7096486B1TV program selection support systemHITACHI LTD·Filed 1999·Granted Aug 22, 2006·331 cites·22 claims
- 0496US5796428AElectronic photography systemHITACHI LTD·Filed 1994·Granted Aug 18, 1998·243 cites·19 claims
- 0595US7457934B2Method and apparatus for reducing the amount of data in a storage systemHITACHI LTD·Filed 2006·Granted Nov 25, 2008·41 cites·25 claims
- 0695US6590608B2Method and apparatus for managing a plurality of images by classifying them into groupsHITACHI LTD·Filed 2001·Granted Jul 8, 2003·80 cites·19 claims
- 0794USD797130SDisplay screen with graphical user interfaceHITACHI LTD·Filed 2015·Granted Sep 12, 2017·53 cites·1 claims
- 0894US6882994B2Method 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
- 0991US6801713B1Recorded program viewing support methodHITACHI LTD·Filed 1998·Granted Oct 5, 2004·70 cites·20 claims
- 1090US7752457B2Method and apparatus for secure data mirroring a storage systemHITACHI LTD·Filed 2007·Granted Jul 6, 2010·17 cites·21 claims
- 1190US7334101B2Point in time remote copy for multiple sitesHITACHI LTD·Filed 2006·Granted Feb 19, 2008·18 cites·25 claims
- 1290US6751598B1Digital content distribution system and protection methodHITACHI LTD·Filed 1997·Granted Jun 15, 2004·61 cites·7 claims
- 1389US7434057B2System and method for watermarking in accessed data in a storage systemHITACHI LTD·Filed 2005·Granted Oct 7, 2008·13 cites·26 claims
- 1488US6857131B1Method and apparatus for displaying an image and data related to the image conditioned on user identifierHITACHI LTD·Filed 1997·Granted Feb 15, 2005·105 cites·49 claims
- 1587US8346934B2Method for executing migration between virtual servers and server system used for the sameHITACHI LTD·Filed 2010·Granted Jan 1, 2013·11 cites·14 claims
- 1686US7120769B2Point in time remote copy for multiple sitesHITACHI LTD·Filed 2004·Granted Oct 10, 2006·32 cites·26 claims
- 1785US7941622B2Point in time remote copy for multiple sitesHITACHI LTD·Filed 2009·Granted May 10, 2011·10 cites·16 claims
- 1885US7177883B2Method and apparatus for hierarchical storage management based on data value and user interestHITACHI LTD·Filed 2004·Granted Feb 13, 2007·36 cites·24 claims
- 1985US6229566B1Electronic photography systemHITACHI LTD·Filed 1998·Granted May 8, 2001·73 cites·4 claims
- 2084US7536523B2Point in time remote copy for multiple sitesHITACHI LTD·Filed 2008·Granted May 19, 2009·10 cites·21 claims
- 2182US8145818B2Access right managing method for accessing multiple programsMURAYAMA KOICHI·Filed 2011·Granted Mar 27, 2012·6 cites·22 claims
- 2282US7340610B1Trusted time stamping storage systemHITACHI LTD·Filed 2004·Granted Mar 4, 2008·30 cites·16 claims
- 2379US6792425B2Secure multi database system including a client, multi database server, and database serverHITACHI LTD·Filed 2001·Granted Sep 14, 2004·37 cites·13 claims
- 2478US7177995B2Long term data protection system and methodHITACHI LTD·Filed 2006·Granted Feb 13, 2007·7 cites·16 claims
- 2577US7269743B2Method and apparatus for secure data mirroring a storage systemHITACHI LTD·Filed 2004·Granted Sep 11, 2007·18 cites·44 claims
- 2676US8078814B2Method of improving efficiency of replication monitoringEMARU HIRONORI·Filed 2006·Granted Dec 13, 2011·6 cites·27 claims
- 2776US7716488B2Trusted time stamping storage systemHITACHI LTD·Filed 2008·Granted May 11, 2010·5 cites·60 claims
- 2876US7707199B2Method and system for integrated management computer setting access rights, calculates requested storage capacity of multiple logical storage apparatus for migrationHITACHI LTD·Filed 2006·Granted Apr 27, 2010·7 cites·15 claims
- 2976US7685390B2Storage systemHITACHI LTD·Filed 2006·Granted Mar 23, 2010·8 cites·8 claims
- 3076US7318133B2Method and apparatus for replicating volumesHITACHI LTD·Filed 2004·Granted Jan 8, 2008·35 cites·15 claims
- 3174US7171511B2WORM proving storage systemHITACHI LTD·Filed 2004·Granted Jan 30, 2007·14 cites·12 claims
- 3274US7100008B2Long term data protection system and methodHITACHI LTD·Filed 2004·Granted Aug 29, 2006·15 cites·34 claims
- 3373US7464070B2Database query operations using storage networksHITACHI LTD·Filed 2003·Granted Dec 9, 2008·18 cites·33 claims
- 3469US7913052B2Method and apparatus for reducing the amount of data in a storage systemHITACHI LTD·Filed 2008·Granted Mar 22, 2011·3 cites·6 claims
- 3569US7412576B2Remote copy system having multiple data centersHITACHI LTD·Filed 2004·Granted Aug 12, 2008·14 cites·22 claims
- 3669US7143112B2Method and apparatus for data integrationHITACHI LTD·Filed 2003·Granted Nov 28, 2006·23 cites·14 claims
- 3768US8171241B2Computer system, computer and method for managing performance based on I/O division ratioNAGAI TAKAYUKI·Filed 2006·Granted May 1, 2012·4 cites·11 claims
- 3867US7284020B2System and method for data recovery in a storage systemHITACHI LTD·Filed 2004·Granted Oct 16, 2007·12 cites·35 claims
- 3965US8307179B2Method of improving efficiency of replication monitoringEMARU HIRONORI·Filed 2012·Granted Nov 6, 2012·1 cites·27 claims
- 4065US8086733B2Method and program for supporting setting of access management informationFUJITA TAKAHIRO·Filed 2006·Granted Dec 27, 2011·4 cites·19 claims
- 4165US7577805B2Using bandwidth and capacity parameters to control remote copy operations in storage systemsHITACHI LTD·Filed 2004·Granted Aug 18, 2009·11 cites·20 claims
- 4264US6101506AMethod and system for managing files by version and programs thereforHITACHI LTD·Filed 1998·Granted Aug 8, 2000·46 cites·20 claims
- 4363US6487543B1Media-integrating system, terminal device, recording medium and broadcasting method for use in the media-integrating systemHITACHI LTD·Filed 1997·Granted Nov 26, 2002·46 cites·2 claims
- 4461US7620767B2Worm proving storage systemHITACHI LTD·Filed 2008·Granted Nov 17, 2009·1 cites·12 claims
- 4561US7152067B2Secure multi database system including a plurality of database devicesHITACHI LTD·Filed 2004·Granted Dec 19, 2006·14 cites·8 claims
- 4660US6535921B2Method of sending and receiving information and system using such methodHITACHI LTD·Filed 2001·Granted Mar 18, 2003·5 cites·29 claims
- 4759USD791869SWriting paperHITACHI LTD·Filed 2015·Granted Jul 11, 2017·8 cites·1 claims
- 4859US7743190B2Access right managing method for accessing multiple programsHITACHI LTD·Filed 2006·Granted Jun 22, 2010·1 cites·18 claims
- 4955US8010725B2Access right managing method for accessing multiple programsHITACHI LTD·Filed 2009·Granted Aug 30, 2011·0 cites·18 claims
- 5052US8195902B2Method of improving efficiency of replication monitoringEMARU HIRONORI·Filed 2011·Granted Jun 5, 2012·0 cites·6 claims
Showing the top 50 of 71 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →