HITACHI, LTD.

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Stats

81 32,320 total patents issued
16,694 Total Apps Published
May 07, 2013 most recent publication

Details

32,320 Issued Patents
4,290 Issued in last 3 years
2,968 Published in last 3 years

394,359 Total Citation Count
Dec 26, 1973 Earliest Filing
16,461 Expired/Abandoned/Withdrawn Patents

Technologies

G06F ELECTRIC DIGITAL DATA PROCESSING 5029 6

Subclasses

Top Owners

G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 877 8

Subclasses

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H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 708 42

Subclasses

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H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 600 15

Subclasses

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H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 536 18

Subclasses

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H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 528 2

Subclasses

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G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 468 3

Subclasses

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G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 405 21

Subclasses

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G09G ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION 267 22

Subclasses

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H04B TRANSMISSION 266 30

Subclasses

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Top Patents (by citation)

5,377,051 Digital video recorder compatible receiver with trick play image enhancement Jan 13, 93 Dec 27, 94 [H04N] 405

5,604,737 Voice communication system and voice communication method Dec 13, 94 Feb 18, 97 [H04L] 266

5,548,724 File server system and file access control method of the same Mar 21, 94 Aug 20, 96 [H01J] 263

5,193,154 Buffered peripheral system and method for backing up and retrieving data to and from backup memory device Oct 25, 91 Mar 09, 93 [G11C, G06F] 254

5,651,006 Hierarchical network management system Jun 05, 95 Jul 22, 97 [H04L, H04J] 222

5,259,926 Method of manufacturing a thin-film pattern on a substrate Sep 24, 92 Nov 09, 93 [B44C] 201

5,432,715 Computer system and monitoring method Jun 29, 93 Jul 11, 95 [G01B] 196

6,069,648 Information communication terminal device Aug 14, 98 May 30, 00 [H04N] 191

5,491,507 Video telephone equipment Oct 22, 93 Feb 13, 96 [H04M] 188

6,044,363 Automatic auction method Sep 02, 97 Mar 28, 00 [G06F] 185

Recent Publications

2013/0105,812 SEMICONDUCTOR DEVICE Oct 31, 12 May 02, 13 [H01L]

2013/0105,819 SEMICONDUCTOR DEVICE Oct 25, 12 May 02, 13 [H01L]

2013/0105,820 TRENCH TYPE SCHOTTKY JUNCTION SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF Oct 31, 12 May 02, 13 [H01L]

2013/0105,980 SINTERABLE BONDING MATERIAL USING COPPER NANOPARTICLES, PROCESS FOR PRODUCING SAME, AND METHOD OF BONDING ELECTRONIC COMPONENT Oct 24, 12 May 02, 13 [B23K, H01L]

2013/0107,107 IMAGE SIGNAL PROCESSING DEVICE Aug 09, 12 May 02, 13 [H04N]

2013/0107,616 MAGNETORESISTIVE EFFECT ELEMENT AND RANDOM ACCESS MEMORY USING SAME Jul 09, 10 May 02, 13 [H01L]

2013/0107,678 APPARATUS AND METHOD FOR INSPECTING THERMALLY ASSISTED MAGNETIC HEAD Oct 24, 12 May 02, 13 [G11B]

2013/0107,798 ABS-based Method for Inter Cell Interference Coordination in LTE-Advanced Networks Nov 02, 11 May 02, 13 [H04W]

2013/0108,276 OPTICAL RECEIVER AND OPTICAL TRANSMISSION SYSTEM Jul 09, 10 May 02, 13 [H04B]

2013/0110,304 ELECTRIC-POWER MANAGEMENT SYSTEM, ELECTRIC-POWER MANAGEMENT METHOD, AND SECTION CONTROLLER Mar 16, 11 May 02, 13 [G05F]

2013/0110,430 STORAGE SYSTEM AND STORAGE CONTROLLER FOR STORAGE SYSTEM Oct 31, 12 May 02, 13 [G01R, G06F]

2013/0110,790 INFORMATION PROCESSING SYSTEM AND FILE RESTORATION METHOD USING SAME Oct 29, 11 May 02, 13 [G06F]

2013/0110,811 COMPUTER AND METHOD FOR MAKING SEARCH ENGINE SEARCH RESOURCE OF COMPUTER SYSTEM INCLUDING STORAGE SYSTEM AND FOR DISPLAYING RESULT OF THE SEARCH Jan 18, 12 May 02, 13 [G06F]

2013/0110,891 STORAGE SYSTEM AND OBJECT MANAGEMENT METHOD Oct 28, 11 May 02, 13 [G06F]

2013/0110,904 METHOD AND APPARATUS TO FORWARD SHARED FILE STORED IN BLOCK STORAGES Oct 27, 11 May 02, 13 [G06F]

2013/0110,966 COMPUTER SYSTEM AND MANAGEMENT SYSTEM THEREFOR Oct 28, 11 May 02, 13 [G06F]

2013/0110,967 INFORMATION SYSTEM AND METHOD FOR MANAGING DATA IN INFORMATION SYSTEM Nov 01, 11 May 02, 13 [G06F]

2013/0111,036 MANAGEMENT METHOD FOR NETWORK SYSTEM, NETWORK SYSTEM, AND MANAGEMENT SERVER Aug 07, 12 May 02, 13 [G06F]

2013/0111,116 STORAGE DEVICE AND COMPUTER USING THE SAME Oct 26, 12 May 02, 13 [G06F]

2013/0111,127 STORAGE SYSTEM AND DATA PROCESSING METHOD IN STORAGE SYSTEM Oct 28, 11 May 02, 13 [G06F]

2013/0111,129 COMPUTER SYSTEM AND STORAGE MANAGEMENT METHOD Oct 28, 11 May 02, 13 [G06F]

2013/0111,170 STORAGE APPARATUS AND METHOD OF CONTROLLING STORAGE APPARATUS Oct 26, 11 May 02, 13 [G06F]

2013/0111,171 STORAGE APPARATUS AND DATA MANAGEMENT METHOD Oct 31, 11 May 02, 13 [G06F]

2013/0111,214 BIOMETRIC AUTHENTICATION METHOD AND COMPUTER SYSTEM Dec 17, 12 May 02, 13 [G06F]

2013/0111,221 STORAGE SYSTEM AND ITS MANAGEMENT METHOD Oct 27, 11 May 02, 13 [G06F]

2013/0111,270 INFORMATION SYSTEM AND CONTROL METHOD OF THE SAME Oct 26, 11 May 02, 13 [G06F]

2013/0111,299 NON-VOLATILE STORAGE SYSTEM COMPENSATING PRIOR PROBABILITY FOR LOW-DENSITY PARITY CHECK CODES Nov 01, 11 May 02, 13 [G06F, H03M]

2013/0111,438 Software Maintenance Supporting Device and Electronic Control Device Verified by the Same Jul 20, 10 May 02, 13 [G06F]

2013/0111,492 Information Processing System, and Its Power-Saving Control Method and Device Jul 13, 12 May 02, 13 [G06F]

2013/0098,556 PLASMA PROCESSING APPARATUS Oct 18, 12 Apr 25, 13 [B08B, C23C]

2013/0098,597 AIR-SIDE FREE COOLING SYSTEM AND DATA CENTER Aug 20, 12 Apr 25, 13 [G05D]

2013/0099,229 Semiconductor Device, RFID Tag Using the Same and Display Device Apr 22, 11 Apr 25, 13 [H01L]

2013/0100,707 DC-DC Converter Jun 25, 10 Apr 25, 13 [H02M]

2013/0101,251 Optical Module and Multilayer Substrate Oct 23, 12 Apr 25, 13 [G02B, H05K]

2013/0101,425 Turbine Blade, and Turbine Rotor and Steam Turbine Using the Turbine Blade Oct 18, 12 Apr 25, 13 [F03B]

2013/0101,907 METAL AIR SECONDARY BATTERY Jul 02, 10 Apr 25, 13 [H01M]

2013/0102,473 SUPERCONDUCTING MAGNET AND METHOD OF PRODUCING SAME Oct 24, 12 Apr 25, 13 [H01F]

2013/0103,417 Medical Care Support System and Method Of Supporting Medical Care Jun 24, 11 Apr 25, 13 [G06Q]

2013/0103,657 TIME-SERIES DATA MANAGEMENT DEVICE, SYSTEM, METHOD, AND PROGRAM May 14, 10 Apr 25, 13 [G06F]

2013/0103,778 METHOD AND APPARATUS TO CHANGE TIERS Oct 19, 11 Apr 25, 13 [G06F]

2013/0103,835 RESOURCE MANAGEMENT METHOD, RESOURCE MANAGEMENT DEVICE, AND PROGRAM PRODUCT May 14, 10 Apr 25, 13 [H04L]

2013/0103,895 FLASH MEMORY STORAGE SYSTEM Dec 17, 12 Apr 25, 13 [G06F]

2013/0103,921 MANAGEMENT METHOD FOR A VIRTUAL VOLUME ACROSS A PLURALITY OF STORAGES Dec 13, 12 Apr 25, 13 [G06F]

2013/0103,934 COMPUTER SYSTEM AND METHOD FOR TAKING OVER MODULE THEREIN Oct 15, 12 Apr 25, 13 [G06F]

2013/0103,976 FAILURE RECORVERY METHOD Dec 11, 12 Apr 25, 13 [H04L]

2013/0103,978 STORAGE SYSTEM Oct 19, 11 Apr 25, 13 [G06F]

View all publication…

Recent Patents

8,434,688 RFID tag and method of manufacturing the same Feb 04, 11 May 07, 13 [G06K]

8,435,325 S Oct 19, 09 May 07, 13 [B01D]

8,436,325 Synchrotron and particle therapy system using the same Apr 18, 12 May 07, 13 [G21G]

8,436,333 Silicon light emitting diode, silicon optical transistor, silicon laser and its manufacturing method Apr 24, 07 May 07, 13 [H01L]

8,436,563 Control unit and control method for permanent magnet synchronous motor Jun 30, 10 May 07, 13 [H02P, H02K]

8,437,228 Thermally-assisted magnetic recording head Jun 09, 09 May 07, 13 [G11B]

8,437,345 Terminal and communication system Jul 07, 04 May 07, 13 [H04L]

8,437,511 Biometric authentication system Sep 02, 10 May 07, 13 [G06K]

8,437,512 Finger identification apparatus Oct 04, 11 May 07, 13 [G06K]

8,437,584 Optical I/O array module and its fabrication method Jul 27, 10 May 07, 13 [G02B]

8,437,615 Data recording method Oct 18, 07 May 07, 13 [H04N]

8,438,185 File storage apparatus and access control method Nov 17, 10 May 07, 13 [G06F]

8,438,215 Content delivery system, cache server, and cache control server Jul 14, 08 May 07, 13 [G06F]

8,438,249 Sensor-Net system and sensor node Feb 11, 08 May 07, 13 [H06F]

8,438,316 Computer system and its renewal method Apr 27, 12 May 07, 13 [G06F]

8,438,348 Disk array device Jun 04, 08 May 07, 13 [G06F, G06G, H02J]

8,438,403 Storage apparatus Jan 24, 08 May 07, 13 [H04L]

8,438,428 Technique for fault avoidance in mail gateway Jul 08, 10 May 07, 13 [G06F]

8,438,429 Storage control apparatus and storage control method Dec 01, 10 May 07, 13 [G11C]

8,438,565 Virtual machine migration managing method, computer using the method, virtualizer using the method and computer system using the method Mar 08, 12 May 07, 13 [G06F]

8,429,969 Inertial sensor and method of manufacturing the same Apr 17, 09 Apr 30, 13 [G01P, G01C]

8,430,213 Electric brake Feb 08, 06 Apr 30, 13 [F16D]

8,432,311 GPS signal transmitter and signal transmission method thereof Dec 31, 09 Apr 30, 13 [G01S]

8,432,333 Image display Jan 08, 09 Apr 30, 13 [G09G]

8,432,458 Imaging apparatus incorporating wide dynamic ranging Jul 10, 09 Apr 30, 13 [H04N]

8,432,700 Storage apparatus May 10, 10 Apr 30, 13 [H05K]

8,433,522 Information processing system using nucleotide sequence-related information Sep 28, 10 Apr 30, 13 [G06F]

8,433,674 Method for clipping migration candidate file in hierarchical storage management system Jun 23, 09 Apr 30, 13 [G06F]

8,433,686 Storage control system and method Jun 21, 11 Apr 30, 13 [G06F]

8,433,779 Computer system for allocating IP address to communication apparatus in computer subsystem newly added and method for newly adding computer subsystem to computer system May 16, 11 Apr 30, 13 [G06F]

8,433,832 Control equipment with communication apparatus Nov 02, 10 Apr 30, 13 [G06F]

8,433,866 Remote copy system and remote copy control method in which a copy pair is changed from a first consistency group to a second consistency group (STG) Oct 23, 09 Apr 30, 13 [G06F]

8,433,922 System and method of biometric authentication using multiple kinds of templates Sep 01, 10 Apr 30, 13 [G06F, G06K]

8,433,942 Storage apparatus and power consumption estimation method Mar 05, 10 Apr 30, 13 [G11B, G06F]

8,434,078 Quick deployment method May 11, 11 Apr 30, 13 [G06F]

View all Patent…