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HITACHI LTD
JP5,000+ patents
Top patents by PatentIndex Score
US8045116B2Oct 25, 2011
Liquid crystal display device
HITACHI LTD46 citations99
US8035786B2Oct 11, 2011
Liquid crystal display device
HITACHI LTD46 citations99
US7936429B2May 3, 2011
Liquid crystal display device
HITACHI LTD57 citations99
US7890461B2Feb 15, 2011
System executing log data transfer synchronously and database data transfer asynchronously
HITACHI LTD215 citations99
US7870105B2Jan 11, 2011
Methods and apparatus for deduplication in storage system
HITACHI LTD419 citations99
US7860988B2Dec 28, 2010
Congestion control and avoidance method in a data processing system
HITACHI LTD210 citations99
US7836332B2Nov 16, 2010
Method and apparatus for managing virtual ports on storage systems
HITACHI LTD182 citations99
US7818495B2Oct 19, 2010
Storage device and deduplication method
HITACHI LTD116 citations99
US7759714B2Jul 20, 2010
Semiconductor device
HITACHI LTD121 citations99
US7757038B2Jul 13, 2010
Storage device and storing method
HITACHI LTD339 citations99
US7755305B2Jul 13, 2010
Charged particle beam extraction system and method
HITACHI LTD164 citations99
US7733455B2Jun 8, 2010
Liquid crystal display device
HITACHI LTD55 citations99
US7709818B2May 4, 2010
Particle beam irradiation apparatus and particle beam irradiation method
HITACHI LTD175 citations99
US7705949B2Apr 27, 2010
Liquid crystal display device
HITACHI LTD53 citations99
US7694070B2Apr 6, 2010
Computer system for managing performances of storage apparatus and performance management method of the computer system
HITACHI LTD173 citations99
US7692748B2Apr 6, 2010
Liquid crystal display device
HITACHI LTD49 citations99
US7630807B2Dec 8, 2009
Vehicle control system
HITACHI LTD112 citations99
US7560717B2Jul 14, 2009
Particle beam irradiation apparatus, treatment planning unit, and particle beam irradiation method
HITACHI LTD181 citations99
US7553756B2Jun 30, 2009
Process for producing semiconductor integrated circuit device
HITACHI LTD222 citations99
US7456924B2Nov 25, 2008
Liquid crystal display device
HITACHI LTD61 citations99
US7449701B2Nov 11, 2008
Particle beam irradiation equipment and particle beam irradiation method
HITACHI LTD163 citations99
US7433301B2Oct 7, 2008
Method of transferring packets and router device therefor
HITACHI LTD188 citations99
US7425717B2Sep 16, 2008
Particle beam irradiation apparatus, treatment planning unit, and particle beam irradiation method
HITACHI LTD156 citations99
US7409492B2Aug 5, 2008
Storage system using flash memory modules logically grouped for wear-leveling and RAID
HITACHI LTD198 citations99
US7405664B2Jul 29, 2008
Radio frequency IC tag and method for manufacturing the same
HITACHI LTD175 citations99
US7383462B2Jun 3, 2008
Method and apparatus for encrypted remote copy for secure data backup and restoration
HITACHI LTD210 citations99
US7355189B2Apr 8, 2008
Charged particle therapy system, range modulation wheel device, and method of installing range modulation wheel device
HITACHI LTD191 citations99
US7307313B2Dec 11, 2007
Semiconductor device including a vertical field effect transistor, having trenches, and a diode
HITACHI LTD334 citations99
US7301162B2Nov 27, 2007
Particle beam irradiation system
HITACHI LTD179 citations99
US7297967B2Nov 20, 2007
Particle beam irradiation system and method of adjusting irradiation apparatus
HITACHI LTD167 citations99
US7299186B2Nov 20, 2007
Speech input system, speech portal server, and speech input terminal
HITACHI LTD131 citations99
US7263593B2Aug 28, 2007
Virtualization controller and data transfer control method
HITACHI LTD91 citations99
US7254426B2Aug 7, 2007
Blood sugar level measuring apparatus
HITACHI LTD121 citations99
US7253863B2Aug 7, 2007
Liquid crystal display device
HITACHI LTD64 citations99
US7254427B2Aug 7, 2007
Optical measurements apparatus and blood sugar level measuring apparatus using the same
HITACHI LTD173 citations99
US7254430B2Aug 7, 2007
Measuring apparatus for measuring a metabolic characteristic in a human body
HITACHI LTD123 citations99
US7251006B2Jul 31, 2007
Liquid crystal display device
HITACHI LTD62 citations99
US7248324B2Jul 24, 2007
Liquid crystal display device
HITACHI LTD74 citations99
US7245336B2Jul 17, 2007
Liquid crystal display device
HITACHI LTD135 citations99
US7233304B1Jun 19, 2007
Liquid crystal display apparatus
HITACHI LTD161 citations99
US7227161B2Jun 5, 2007
Particle beam irradiation apparatus, treatment planning unit, and particle beam irradiation method
HITACHI LTD170 citations99
US7222172B2May 22, 2007
Storage system having virtualized resource
HITACHI LTD154 citations99
US7212570B2May 1, 2007
Video converter and computer program for executing said video converter
HITACHI LTD222 citations99
US7206860B2Apr 17, 2007
Virtualization switch and storage system
HITACHI LTD189 citations99
US7167963B2Jan 23, 2007
Storage system with multiple remote site copying capability
HITACHI LTD104 citations99
US7154107B2Dec 26, 2006
Particle beam irradiation system and method of adjusting irradiation field forming apparatus
HITACHI LTD163 citations99
US7139932B2Nov 21, 2006
Data synchronization of multiple remote storage after remote copy suspension
HITACHI LTD119 citations99
US7122811B2Oct 17, 2006
Particle beam irradiation apparatus, treatment planning unit, and particle beam irradiation method
HITACHI LTD163 citations99
US7117327B2Oct 3, 2006
Data processing system
HITACHI LTD98 citations99
US7111136B2Sep 19, 2006
Method and apparatus for backup and recovery system using storage based journaling
HITACHI LTD155 citations99
Showing the top 50 of 5,000+ patents by PatentIndex Score.