Assignee
HITACHI COMP PERIPHERALS CO
JP·20 granted patents·3 pending applications·524 citations·filing 1999–2011
Top patents by PatentIndex Score
23 records- 0196US7589436B2Data processing unit and DC backup power supplyHITACHI COMP PERIPHERALS CO·Filed 2005·Granted Sep 15, 2009·30 cites·10 claims
- 0295US7911810B2Bi-directional DC-DC converter and method for controlling the sameHITACHI COMP PERIPHERALS CO·Filed 2010·Granted Mar 22, 2011·19 cites·2 claims
- 0392US7848118B2Bi-directional DC-DC converter and method for controlling the sameHITACHI COMP PERIPHERALS CO·Filed 2008·Granted Dec 7, 2010·32 cites·18 claims
- 0487US7840840B2DC backup power supply system, a disk array and a DC backup power supplyHITACHI COMP PERIPHERALS CO·Filed 2008·Granted Nov 23, 2010·25 cites·19 claims
- 0584US7812575B2Bidirectional DC-DC converter and power supply apparatus with the sameHITACHI COMP PERIPHERALS CO·Filed 2007·Granted Oct 12, 2010·22 cites·20 claims
- 0684US7157810B2Backup power supplyHITACHI COMP PERIPHERALS CO·Filed 2004·Granted Jan 2, 2007·47 cites·15 claims
- 0783US7053502B2Power supply with uninterruptible functionHITACHI COMP PERIPHERALS CO·Filed 2004·Granted May 30, 2006·55 cites·10 claims
- 0883US6977448B2Backup power supplyHITACHI COMP PERIPHERALS CO·Filed 2003·Granted Dec 20, 2005·46 cites·11 claims
- 0981US8378646B2Bidirectional dc-dc converter and control method thereofHITACHI COMP PERIPHERALS CO·Filed 2009·Granted Feb 19, 2013·13 cites·17 claims
- 1081US7106904B2Form identification methodHITACHI COMP PERIPHERALS CO·Filed 2002·Granted Sep 12, 2006·53 cites·2 claims
- 1181US6959359B1Software prefetch system and method for concurrently overriding data prefetched into multiple levels of cacheHITACHI COMP PERIPHERALS CO·Filed 2000·Granted Oct 25, 2005·39 cites·10 claims
- 1279US7923980B2Digital controlled power supplyHITACHI COMP PERIPHERALS CO·Filed 2008·Granted Apr 12, 2011·15 cites·9 claims
- 1377US7705562B2Switching power supply unit and disk array systemHITACHI COMP PERIPHERALS CO·Filed 2006·Granted Apr 27, 2010·15 cites·12 claims
- 1475US7049711B2Uninterruptible power systemHITACHI COMP PERIPHERALS CO·Filed 2003·Granted May 23, 2006·24 cites·18 claims
- 1574US7406623B2DC backup power supply system and disk array using sameHITACHI COMP PERIPHERALS CO·Filed 2004·Granted Jul 29, 2008·27 cites·23 claims
- 1670US7683597B2PWM signal generating circuit and power supply apparatus comprising such PWM signal generating circuitHITACHI COMP PERIPHERALS CO·Filed 2007·Granted Mar 23, 2010·6 cites·21 claims
- 1770US7245469B2DC backup power supply device and method for diagnosing the sameHITACHI COMP PERIPHERALS CO·Filed 2003·Granted Jul 17, 2007·27 cites·5 claims
- 1868US7880440B2Switching power supplyHITACHI COMP PERIPHERALS CO·Filed 2008·Granted Feb 1, 2011·8 cites·5 claims
- 1963US6278680B1Initial crystallization method of recording media and device thereofHITACHI COMP PERIPHERALS CO·Filed 1999·Granted Aug 21, 2001·17 cites·12 claims
- 2062US7972285B2Motor function measuring sensor, motor function measuring apparatus, and motor function analyzing apparatusHITACHI COMP PERIPHERALS CO·Filed 2008·Granted Jul 5, 2011·4 cites·9 claims
- 2145US2009100223A1Storage control apparatus, data archive method for storage control apparatus, and storage systemHITACHI COMP PERIPHERALS CO·Filed 2008·Application pending·0 cites
- 2240US2008077739A1Storage apparatus, storage system, and data read methodHITACHI COMP PERIPHERALS CO·Filed 2007·Application pending·0 cites
- 2332US2013013880A1Storage system and its data processing methodHITACHI COMP PERIPHERALS CO·Filed 2011·Application pending·0 cites
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