Inventor · disambiguated record
Yoshihisa Kamo
Also filed as: KAMO YOSHIHISA
49 granted patents·1,040 citations·filing 1974–2005
99Inventor score
Top patents by PatentIndex Score
49 records- 0194US6286108B1Disk system and power-on sequence for the sameHITACHI LTD·Filed 2000·Granted Sep 4, 2001·27 cites·41 claims
- 0294US5463765ADisk array system, data writing method thereof, and fault recovering methodHITACHI LTD·Filed 1993·Granted Oct 31, 1995·70 cites·28 claims
- 0391US4802043AMagneto-resistive head for protecting against output spike noisesHITACHI LTD·Filed 1986·Granted Jan 31, 1989·48 cites·8 claims
- 0489US6625748B1Data reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occursHITACHI LTD·Filed 2000·Granted Sep 23, 2003·31 cites·10 claims
- 0589US5673412ADisk system and power-on sequence for the sameHITACHI LTD·Filed 1995·Granted Sep 30, 1997·38 cites·67 claims
- 0688US7434095B2Data reconstruction method and system wherein timing of data of data reconstruction is controlled in accordance with conditions when a failure occursHITACHI LTD·Filed 2005·Granted Oct 7, 2008·12 cites·11 claims
- 0785US4807074AMagnetoresistive head for magnetic diskHITACHI LTD·Filed 1987·Granted Feb 21, 1989·29 cites·7 claims
- 0884US5181149AMagnetic recording/reproducing head assemblyHITACHI LTD·Filed 1989·Granted Jan 19, 1993·32 cites·18 claims
- 0983US5495572AData reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occursHITACHI LTD·Filed 1992·Granted Feb 27, 1996·31 cites·19 claims
- 1082US5402428AArray disk subsystemHITACHI LTD·Filed 1990·Granted Mar 28, 1995·79 cites·23 claims
- 1181US6012124ADisk system with activation control of disk drive motorsHITACHI LTD·Filed 1997·Granted Jan 4, 2000·56 cites·12 claims
- 1280US6611897B2Method and apparatus for implementing redundancy on data stored in a disk array subsystem based on use frequency or importance of the dataHITACHI LTD·Filed 2002·Granted Aug 26, 2003·34 cites·7 claims
- 1378US6243824B1Array disk subsystemHITACHI LTD·Filed 1994·Granted Jun 5, 2001·62 cites·4 claims
- 1478US6131142ADisk system and power-on sequence for the sameHITACHI LTD·Filed 1999·Granted Oct 10, 2000·49 cites·17 claims
- 1576US5084789A"Parallel transfer type disk system"HITACHI LTD·Filed 1990·Granted Jan 28, 1992·24 cites·14 claims
- 1676US4816948AMagneto-resistive headHITACHI LTD·Filed 1987·Granted Mar 28, 1989·20 cites·6 claims
- 1776US4663684AMagnetic transducer using magnetoresistance effectHITACHI LTD·Filed 1985·Granted May 5, 1987·32 cites·21 claims
- 1874US5574881AHigh capacity data storage method and system using independently controlled heads and circuitry for monitoring access frequency of data recordsHITACHI LTD·Filed 1995·Granted Nov 12, 1996·28 cites·6 claims
- 1974US5457703AArray disk system and control method thereofHITACHI LTD·Filed 1991·Granted Oct 10, 1995·23 cites·13 claims
- 2071US6327673B1Storage unit subsystemHITACHI LTD·Filed 2000·Granted Dec 4, 2001·10 cites·1 claims
- 2171US5941993AData reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occursHITACHI LTD·Filed 1997·Granted Aug 24, 1999·35 cites·19 claims
- 2270US4716306ACircuit for detecting variation of resistance of a variable-resistance elementHITACHI LTD·Filed 1984·Granted Dec 29, 1987·21 cites·18 claims
- 2369US6625690B2Disk system and power-on sequence for the sameHITACHI LTD·Filed 2002·Granted Sep 23, 2003·8 cites·5 claims
- 2466US6000039AData reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occursHITACHI LTD·Filed 1997·Granted Dec 7, 1999·28 cites·17 claims
- 2564US5682396AControl unit in storage subsystem with improvement of redundant data updatingHITACHI LTD·Filed 1992·Granted Oct 28, 1997·26 cites·27 claims
- 2661US7242656B2Disk system and power-on sequence for the sameHITACHI LTD·Filed 2003·Granted Jul 10, 2007·2 cites·10 claims
- 2760US6397294B2Disk system and power-on sequence for the sameHITACHI LTD·Filed 2001·Granted May 28, 2002·5 cites·18 claims
- 2859US5572699AVariable length data in a parallel disk arrayHITACHI LTD·Filed 1993·Granted Nov 5, 1996·33 cites·30 claims
- 2958US6532549B2Storage unit subsystemHITACHI LTD·Filed 2001·Granted Mar 11, 2003·3 cites·6 claims
- 3058US5008761AReadout circuit in magnetic recording deviceHITACHI LTD·Filed 1990·Granted Apr 16, 1991·10 cites·10 claims
- 3155US7320089B2Storage unit subsystemHITACHI LTD·Filed 2004·Granted Jan 15, 2008·3 cites·15 claims
- 3251US7486485B2Perpendicular hard disk drive resistive against external magnetic fieldHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Feb 3, 2009·0 cites·20 claims
- 3351US6874101B2Storage unit subsystemHITACHI LTD·Filed 2003·Granted Mar 29, 2005·1 cites·3 claims
- 3451US6571314B1Method for changing raid-level in disk array subsystemHITACHI LTD·Filed 1996·Granted May 27, 2003·26 cites·6 claims
- 3550US6161194AData reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occursHITACHI LTD·Filed 1998·Granted Dec 12, 2000·12 cites·24 claims
- 3649US5917999AStorage unit subsystemHITACHI LTD·Filed 1997·Granted Jun 29, 1999·13 cites·5 claims
- 3749US5889938AData reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occursHITACHI LTD·Filed 1995·Granted Mar 30, 1999·12 cites·8 claims
- 3849US4814919ASoft-film-bias type magnetoresitive deviceHITACHI LTD·Filed 1987·Granted Mar 21, 1989·7 cites·11 claims
- 3948US6966011B2Data reconstruction method and system wherein timing of data of data reconstruction is controlled in accordance with conditions when a failure occursHITACHI LTD·Filed 2003·Granted Nov 15, 2005·0 cites·6 claims
- 4048US5745771ADisc array device and disc control methodHITACHI LTD·Filed 1995·Granted Apr 28, 1998·24 cites·8 claims
- 4147US6757839B2Storage unit subsystemHITACHI LTD·Filed 2002·Granted Jun 29, 2004·0 cites·7 claims
- 4246US4222081AInformation reading device for a multitrack storage deviceHITACHI LTD·Filed 1978·Granted Sep 9, 1980·5 cites·5 claims
- 4344US4600965ACurrent driving circuitHITACHI LTD·Filed 1984·Granted Jul 15, 1986·5 cites·17 claims
- 4444US3989903AMulti-directional sound signal recording and/or reproducing system with crosstalk compensation meansCOOPER DUANE H·Filed 1974·Granted Nov 2, 1976·6 cites·11 claims
- 4540US5325364AMethod for error correction and circuit for realizing sameHITACHI LTD·Filed 1989·Granted Jun 28, 1994·9 cites·11 claims
- 4639US6145091AStorage unit subsystemHITACHI LTD·Filed 1999·Granted Nov 7, 2000·6 cites·2 claims
- 4736US4821012AMagnetoresistive elementHITACHI LTD·Filed 1987·Granted Apr 11, 1989·5 cites·6 claims
- 4830US4070552AMulti-directional stereo multiple recording apparatus with constant acceleration cuttingNIPPON COLUMBIA·Filed 1975·Granted Jan 24, 1978·0 cites·10 claims
- 4923US4075425AMulti-directional sound signal reproducing systemNIPPON COLUMBIA·Filed 1975·Granted Feb 21, 1978·0 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →