Assignee
HITACHI LTD
39,044 granted patents·4,946 pending applications·1,041,031 citations·filing 1967–2025
Top patents by PatentIndex Score
43,990 records- 0199US9606745B2Storage system and method for allocating resourceHITACHI LTD·Filed 2016·Granted Mar 28, 2017·66 cites·18 claims
- 0299US8045116B2Liquid crystal display deviceHITACHI LTD·Filed 2011·Granted Oct 25, 2011·46 cites·7 claims
- 0399US8035786B2Liquid crystal display deviceHITACHI LTD·Filed 2011·Granted Oct 11, 2011·46 cites·6 claims
- 0499US7978471B2Electric power conversion apparatusHITACHI LTD·Filed 2009·Granted Jul 12, 2011·68 cites·15 claims
- 0599US7936429B2Liquid crystal display deviceHITACHI LTD·Filed 2010·Granted May 3, 2011·57 cites·6 claims
- 0699US7903407B2Cooling systems and electronic apparatusHITACHI LTD·Filed 2009·Granted Mar 8, 2011·110 cites·6 claims
- 0799US7870105B2Methods and apparatus for deduplication in storage systemHITACHI LTD·Filed 2007·Granted Jan 11, 2011·419 cites·21 claims
- 0899US7836332B2Method and apparatus for managing virtual ports on storage systemsHITACHI LTD·Filed 2007·Granted Nov 16, 2010·182 cites·14 claims
- 0999US7818495B2Storage device and deduplication methodHITACHI LTD·Filed 2008·Granted Oct 19, 2010·116 cites·18 claims
- 1099US7757038B2Storage device and storing methodHITACHI LTD·Filed 2007·Granted Jul 13, 2010·339 cites·12 claims
- 1199US7733455B2Liquid crystal display deviceHITACHI LTD·Filed 2008·Granted Jun 8, 2010·55 cites·11 claims
- 1299US7705949B2Liquid crystal display deviceHITACHI LTD·Filed 2008·Granted Apr 27, 2010·53 cites·7 claims
- 1399US7697100B2Liquid crystal display deviceHITACHI LTD·Filed 2007·Granted Apr 13, 2010·46 cites·7 claims
- 1499US7692748B2Liquid crystal display deviceHITACHI LTD·Filed 2008·Granted Apr 6, 2010·49 cites·10 claims
- 1599US7692144B2Electron beam exposure or system inspection or measurement apparatus and its method and height detection apparatusHITACHI LTD·Filed 2007·Granted Apr 6, 2010·42 cites·15 claims
- 1699US7683996B2Liquid crystal display deviceHITACHI LTD·Filed 2008·Granted Mar 23, 2010·46 cites·6 claims
- 1799US7553756B2Process for producing semiconductor integrated circuit deviceHITACHI LTD·Filed 2006·Granted Jun 30, 2009·222 cites·20 claims
- 1899US7456924B2Liquid crystal display deviceHITACHI LTD·Filed 2007·Granted Nov 25, 2008·61 cites·6 claims
- 1999US7425717B2Particle beam irradiation apparatus, treatment planning unit, and particle beam irradiation methodHITACHI LTD·Filed 2006·Granted Sep 16, 2008·156 cites·5 claims
- 2099US7409492B2Storage system using flash memory modules logically grouped for wear-leveling and RAIDHITACHI LTD·Filed 2006·Granted Aug 5, 2008·198 cites·31 claims
- 2199US7379328B2Semiconductor deviceHITACHI LTD·Filed 2007·Granted May 27, 2008·115 cites·2 claims
- 2299US7355189B2Charged particle therapy system, range modulation wheel device, and method of installing range modulation wheel deviceHITACHI LTD·Filed 2006·Granted Apr 8, 2008·191 cites·9 claims
- 2399US7245336B2Liquid crystal display deviceHITACHI LTD·Filed 2006·Granted Jul 17, 2007·135 cites·10 claims
- 2499US7227161B2Particle beam irradiation apparatus, treatment planning unit, and particle beam irradiation methodHITACHI LTD·Filed 2005·Granted Jun 5, 2007·170 cites·14 claims
- 2599US7104444B2Method and system to prevent fraudulent payment in credit/debit card transactions, and terminals thereforHITACHI LTD·Filed 2005·Granted Sep 12, 2006·170 cites·3 claims
- 2699US7096315B2Method for analyzing performance informationHITACHI LTD·Filed 2004·Granted Aug 22, 2006·260 cites·8 claims
- 2799US7085904B2Storage system and method for backupHITACHI LTD·Filed 2004·Granted Aug 1, 2006·495 cites·21 claims
- 2899US7082321B2Radio communication system using adaptive array antennaHITACHI LTD·Filed 2003·Granted Jul 25, 2006·213 cites·4 claims
- 2999US7069383B2Apparatus and method for reallocating logical to physical disk devices using a storage controller, with access frequency and sequential access ratio calculations and displayHITACHI LTD·Filed 2005·Granted Jun 27, 2006·325 cites·8 claims
- 3099US7053389B2Charged particle therapy system, range modulation wheel device, and method of installing range modulation wheel deviceHITACHI LTD·Filed 2004·Granted May 30, 2006·189 cites·14 claims
- 3199US7046630B2Packet switching network, packet switching equipment and network management equipmentHITACHI LTD·Filed 2002·Granted May 16, 2006·333 cites·4 claims
- 3299US6977463B2Display moduleHITACHI LTD·Filed 2005·Granted Dec 20, 2005·64 cites·16 claims
- 3399US6972669B2On-vehicle breakdown-warning report systemHITACHI LTD·Filed 2003·Granted Dec 6, 2005·125 cites·6 claims
- 3499US6913194B2Method and system to prevent fraudulent payment in credit/debit card transactions, and terminals thereforHITACHI LTD·Filed 2003·Granted Jul 5, 2005·214 cites·5 claims
- 3599US6889211B1Method and system for distributing multimedia data with management informationHITACHI LTD·Filed 2000·Granted May 3, 2005·540 cites·18 claims
- 3699US6883111B2Data recording method and data recording apparatusHITACHI LTD·Filed 2002·Granted Apr 19, 2005·142 cites·20 claims
- 3799US6741977B1Image recording/reproducing apparatus in monitor systemHITACHI LTD·Filed 2000·Granted May 25, 2004·309 cites·21 claims
- 3899US6738034B2Picture image display device and method of driving the sameHITACHI LTD·Filed 2001·Granted May 18, 2004·223 cites·11 claims
- 3999US6669487B1IC cardHITACHI LTD·Filed 2000·Granted Dec 30, 2003·240 cites·26 claims
- 4099US6664552B2Method and apparatus for specimen fabricationHITACHI LTD·Filed 2001·Granted Dec 16, 2003·139 cites·2 claims
- 4199US6614684B1Semiconductor integrated circuit and nonvolatile memory elementHITACHI LTD·Filed 2000·Granted Sep 2, 2003·353 cites·26 claims
- 4299US6583846B1Liquid crystal display device with spacer covered with an electrodeHITACHI LTD·Filed 2000·Granted Jun 24, 2003·121 cites·14 claims
- 4399US6549497B2Optical reproducing methodHITACHI LTD·Filed 2002·Granted Apr 15, 2003·244 cites·8 claims
- 4499US6538249B1Image-formation apparatus using charged particle beams under various focus conditionsHITACHI LTD·Filed 2000·Granted Mar 25, 2003·118 cites·36 claims
- 4599US6532579B2Semiconductor integrated circuit and design method and manufacturing method of the sameHITACHI LTD·Filed 2001·Granted Mar 11, 2003·290 cites·4 claims
- 4699US6424128B1Electronic device having power supply regulators controlled according to operation mode of internal circuitHITACHI LTD·Filed 2001·Granted Jul 23, 2002·133 cites·16 claims
- 4799US6301592B1Method of and an apparatus for displaying version information and configuration information and a computer-readable recording medium on which a version and configuration information display program is recordedHITACHI LTD·Filed 1998·Granted Oct 9, 2001·1.1k cites·12 claims
- 4899US6266116B1In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directionsHITACHI LTD·Filed 1996·Granted Jul 24, 2001·359 cites·24 claims
- 4999US6265837B1Charged-particle beam irradiation method and systemHITACHI LTD·Filed 1999·Granted Jul 24, 2001·248 cites·14 claims
- 5099US6216538B1Particle handling apparatus for handling particles in fluid by acoustic radiation pressureHITACHI LTD·Filed 1996·Granted Apr 17, 2001·301 cites·46 claims
Showing the top 50 of 43,990 patent records by PatentIndex Score.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →