P

Inventor

KAMO YOSHIHISA

JP49 patents
⚠️ This page may combine multiple inventors who share the name “KAMO YOSHIHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

45 patents
US6625748B1Sep 23, 2003

Data reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occurs

HITACHI LTD31 citations96
US6286108B1Sep 4, 2001

Disk system and power-on sequence for the same

HITACHI LTD27 citations96
US6243824B1Jun 5, 2001

Array disk subsystem

HITACHI LTD62 citations96
US6131142AOct 10, 2000

Disk system and power-on sequence for the same

HITACHI LTD49 citations96
US6012124AJan 4, 2000

Disk system with activation control of disk drive motors

HITACHI LTD56 citations96
US6000039ADec 7, 1999

Data reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occurs

HITACHI LTD28 citations96
US5941993AAug 24, 1999

Data reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occurs

HITACHI LTD35 citations96
US5673412ASep 30, 1997

Disk system and power-on sequence for the same

HITACHI LTD38 citations96
US5495572AFeb 27, 1996

Data reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occurs

HITACHI LTD31 citations96
US5463765AOct 31, 1995

Disk array system, data writing method thereof, and fault recovering method

HITACHI LTD70 citations96
US5402428AMar 28, 1995

Array disk subsystem

HITACHI LTD79 citations96
US7434095B2Oct 7, 2008

Data reconstruction method and system wherein timing of data of data reconstruction is controlled in accordance with conditions when a failure occurs

HITACHI LTD12 citations93
US5682396AOct 28, 1997

Control unit in storage subsystem with improvement of redundant data updating

HITACHI LTD26 citations93
US5457703AOct 10, 1995

Array disk system and control method thereof

HITACHI LTD23 citations93
US5084789AJan 28, 1992

"Parallel transfer type disk system"

HITACHI LTD24 citations93
US4807074AFeb 21, 1989

Magnetoresistive head for magnetic disk

HITACHI LTD29 citations93
US5574881ANov 12, 1996

High capacity data storage method and system using independently controlled heads and circuitry for monitoring access frequency of data records

HITACHI LTD28 citations92
US5572699ANov 5, 1996

Variable length data in a parallel disk array

HITACHI LTD33 citations92
US4802043AJan 31, 1989

Magneto-resistive head for protecting against output spike noises

HITACHI LTD48 citations92
US4663684AMay 5, 1987

Magnetic transducer using magnetoresistance effect

HITACHI LTD32 citations92
US5181149AJan 19, 1993

Magnetic recording/reproducing head assembly

HITACHI LTD32 citations91
US6611897B2Aug 26, 2003

Method and apparatus for implementing redundancy on data stored in a disk array subsystem based on use frequency or importance of the data

HITACHI LTD34 citations90
US6571314B1May 27, 2003

Method for changing raid-level in disk array subsystem

HITACHI LTD26 citations90
US5745771AApr 28, 1998

Disc array device and disc control method

HITACHI LTD24 citations90
US6161194ADec 12, 2000

Data reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occurs

HITACHI LTD12 citations82
US5917999AJun 29, 1999

Storage unit subsystem

HITACHI LTD13 citations82
US5889938AMar 30, 1999

Data reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occurs

HITACHI LTD12 citations82
US4816948AMar 28, 1989

Magneto-resistive head

HITACHI LTD20 citations82
US4716306ADec 29, 1987

Circuit for detecting variation of resistance of a variable-resistance element

HITACHI LTD21 citations82
US6625690B2Sep 23, 2003

Disk system and power-on sequence for the same

HITACHI LTD8 citations74
US6327673B1Dec 4, 2001

Storage unit subsystem

HITACHI LTD10 citations74
US6145091ANov 7, 2000

Storage unit subsystem

HITACHI LTD6 citations74
US5325364AJun 28, 1994

Method for error correction and circuit for realizing same

HITACHI LTD9 citations74
US5008761AApr 16, 1991

Readout circuit in magnetic recording device

HITACHI LTD10 citations74
US4814919AMar 21, 1989

Soft-film-bias type magnetoresitive device

HITACHI LTD7 citations74
US6397294B2May 28, 2002

Disk system and power-on sequence for the same

HITACHI LTD5 citations70
US7320089B2Jan 15, 2008

Storage unit subsystem

HITACHI LTD3 citations63
US7242656B2Jul 10, 2007

Disk system and power-on sequence for the same

HITACHI LTD2 citations63
US6532549B2Mar 11, 2003

Storage unit subsystem

HITACHI LTD3 citations63
US4600965AJul 15, 1986

Current driving circuit

HITACHI LTD5 citations63
US4821012AApr 11, 1989

Magnetoresistive element

HITACHI LTD5 citations62
US4222081ASep 9, 1980

Information reading device for a multitrack storage device

HITACHI LTD5 citations61
US6966011B2Nov 15, 2005

Data reconstruction method and system wherein timing of data of data reconstruction is controlled in accordance with conditions when a failure occurs

HITACHI LTD0 citations52
US6874101B2Mar 29, 2005

Storage unit subsystem

HITACHI LTD1 citations52
US6757839B2Jun 29, 2004

Storage unit subsystem

HITACHI LTD0 citations52

NIPPON COLUMBIA

2 patents

COOPER DUANE H

1 patent

HITACHI GLOBAL STORAGE TECH

1 patent