Inventor · disambiguated record
Akira Kurano
Also filed as: KURANO AKIRA
32 granted patents·2,552 citations·filing 1984–2003
98Inventor score
Files withHITACHI LTD32
Top patents by PatentIndex Score
32 records- 0198US5226157ABackup control method and system in data processing system using identifiers for controlling block data transferHITACHI LTD·Filed 1989·Granted Jul 6, 1993·1.5k cites·14 claims
- 0297US4688221AError recovery method and apparatusHITACHI LTD·Filed 1984·Granted Aug 18, 1987·221 cites·14 claims
- 0392US5253351AMemory controller with a cache memory and control method of cache memory including steps of determining memory access threshold valuesHITACHI LTD·Filed 1989·Granted Oct 12, 1993·132 cites·31 claims
- 0491US6374327B2Method of data migrationHITACHI LTD·Filed 2001·Granted Apr 16, 2002·80 cites·2 claims
- 0590US6230239B1Method of data migrationHITACHI LTD·Filed 1997·Granted May 8, 2001·161 cites·76 claims
- 0684US6473867B2Parity storage unit, in a disk array system, for generating updated parity data from received data recordsHITACHI LTD·Filed 2001·Granted Oct 29, 2002·28 cites·7 claims
- 0780US4800483AMethod and system for concurrent data transfer disk cache systemHITACHI LTD·Filed 1987·Granted Jan 24, 1989·57 cites·18 claims
- 0878US5119488AInput/output system implementing several access paths for rerouting data in the event one path failsHITACHI LTD·Filed 1989·Granted Jun 2, 1992·59 cites·16 claims
- 0978US4803572ARecording/reproducing method and apparatus of magnetic disk unit in which playback commences before the magnetic head is completely centered on the trackHITACHI LTD·Filed 1987·Granted Feb 7, 1989·24 cites·10 claims
- 1071US6269424B1Disk array device with selectable method for generating redundant dataHITACHI LTD·Filed 1997·Granted Jul 31, 2001·43 cites·6 claims
- 1171US4807180AMultiple control system for disk storage and method for realizing sameHITACHI LTD·Filed 1986·Granted Feb 21, 1989·43 cites·11 claims
- 1270US6463505B2Disk array device with selectable method for generating redundant dataHITACHI LTD·Filed 2001·Granted Oct 8, 2002·11 cites·12 claims
- 1368US5734812AStorage unit with parity generation function and storage systems using storage unit with parity generation analyzationHITACHI LTD·Filed 1992·Granted Mar 31, 1998·34 cites·8 claims
- 1459US5497472ACache control method and apparatus for storing data in a cache memory and for indicating completion of a write request irrespective of whether a record to be accessed exists in an external storage unitHITACHI LTD·Filed 1995·Granted Mar 5, 1996·26 cites·20 claims
- 1559US4870565AParallel transfer type director meansHITACHI LTD·Filed 1989·Granted Sep 26, 1989·24 cites·9 claims
- 1657US5179684AMethod of changing the track and recording dataHITACHI LTD·Filed 1989·Granted Jan 12, 1993·9 cites·11 claims
- 1755US5694576ACache control by adding record identification information to partial write requestHITACHI LTD·Filed 1995·Granted Dec 2, 1997·21 cites·28 claims
- 1855US4814904AMethod of controlling erasing following format writing in a magnetic disc apparatusHITACHI LTD·Filed 1986·Granted Mar 21, 1989·11 cites·4 claims
- 1954US6604172B2Disk array device with selectable method for generating redundant dataHITACHI LTD·Filed 2002·Granted Aug 5, 2003·2 cites·20 claims
- 2052US6961816B2Disk array device with selectable method for generating redundant dataHITACHI LTD·Filed 2003·Granted Nov 1, 2005·1 cites·30 claims
- 2152US4819203AControl system for interruption long data transfers between a disk unit or disk coche and main memory to execute input/output instructionsHITACHI LTD·Filed 1987·Granted Apr 4, 1989·19 cites·7 claims
- 2251US5410666AOn-line dumping system and disk sub systemHITACHI LTD·Filed 1990·Granted Apr 25, 1995·20 cites·12 claims
- 2347US7082496B2Cache control method and apparatusHITACHI LTD·Filed 2003·Granted Jul 25, 2006·0 cites·10 claims
- 2446US6032263AParity storage unit, in a disk array system, for generating updated parity data from received data recordsHITACHI LTD·Filed 1998·Granted Feb 29, 2000·12 cites·3 claims
- 2546US4805048AMethod for controlling to keep off defects on magnetic disksHITACHI LTD·Filed 1987·Granted Feb 14, 1989·6 cites·1 claims
- 2645US5606684AOn-line dumping system and disk sub-systemHITACHI LTD·Filed 1994·Granted Feb 25, 1997·14 cites·7 claims
- 2742US6209107B1Parity storage unit, in a disk array system, for generating updated parity data from received data recordsHITACHI LTD·Filed 1999·Granted Mar 27, 2001·9 cites·5 claims
- 2842US5826002AParity storage unit, in a disk array system for generating updated parity data from received data recordsHITACHI LTD·Filed 1996·Granted Oct 20, 1998·9 cites·4 claims
- 2940US5325506AMethod of changing the track and recording dataHITACHI LTD·Filed 1992·Granted Jun 28, 1994·4 cites·5 claims
- 3037US6085286ACache control method and apparatusHITACHI LTD·Filed 1998·Granted Jul 4, 2000·6 cites·4 claims
- 3132US5187778ABuffered disk unit and method of transferring data thereinHITACHI LTD·Filed 1990·Granted Feb 16, 1993·5 cites·42 claims
- 3230US5315451ARotating storage track format emulationHITACHI LTD·Filed 1991·Granted May 24, 1994·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →