Inventor
MATSUSHIGE HIROMI
JP40 patents
⚠️ This page may combine multiple inventors who share the name “MATSUSHIGE HIROMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
39 patentsUS7206946B2Apr 17, 2007
Disk drive system for starting destaging of unwritten cache memory data to disk drive upon detection of DC voltage level falling below predetermined value
HITACHI LTD47 citations96
US7423354B2Sep 9, 2008
Storage system
HITACHI LTD18 citations92
US7284140B2Oct 16, 2007
Disk array device and method of supplying power to disk array device
HITACHI LTD13 citations92
US7051216B2May 23, 2006
Disk array device and method of supplying power to disk array device
HITACHI LTD27 citations92
US7051233B2May 23, 2006
Method for backing up power supply of disk array device and system thereof
HITACHI LTD29 citations92
US5625632AApr 29, 1997
Magnetic disk drive including a data discrimination apparatus capable of correcting signal waveform distortion due to intersymbol interference
HITACHI LTD21 citations92
US5572157ANov 5, 1996
Digital phase-looked loop circuit
HITACHI LTD21 citations92
US4695909ASep 22, 1987
Magnetic head assembly
HITACHI LTD31 citations89
US7681061B2Mar 16, 2010
Disk array device and method of supplying power to disk array device
HITACHI LTD11 citations84
US7612467B2Nov 3, 2009
Power device and power device power supply method
HITACHI LTD9 citations84
US7571356B2Aug 4, 2009
Storage control device, and error information management method for storage control device
HITACHI LTD11 citations84
US7669066B2Feb 23, 2010
Disk array system having plural disk drives that controls supplying of power to a disk drive having finished a destaging process on a disk drive by disk drive basis
HITACHI LTD7 citations74
US7511911B2Mar 31, 2009
Storage system having a power source state detection unit
HITACHI LTD5 citations74
US7353435B2Apr 1, 2008
Storage device system and signal transmission method for storage device system
HITACHI LTD8 citations74
US7296166B2Nov 13, 2007
Disk array system for starting destaging process of unwritten cache memory data to disk drive upon detecting DC voltage level falling below predetermined value
HITACHI LTD8 citations74
US7131014B2Oct 31, 2006
Disk array device and method of supplying power to disk array device
HITACHI LTD7 citations74
US7120736B2Oct 10, 2006
Storage unit and circuit for shaping communication signal
HITACHI LTD10 citations74
US7100059B2Aug 29, 2006
Disk array system having a first and second disk control unit each having cache memory, shared memory, a plurality of power units, a plurality of hard disks, and an AC/DC power supply
HITACHI LTD10 citations74
US7069358B2Jun 27, 2006
Disk array system and disk drive unit
HITACHI LTD6 citations74
US7023642B2Apr 4, 2006
Storage system for monitoring disk drive spin-up and reducing start-up time
HITACHI LTD8 citations74
US5231544AJul 27, 1993
Method and apparatus for signal detection in a magnetic recording and reproducing apparatus
HITACHI LTD15 citations74
US5841303ANov 24, 1998
Digital phase-locked loop circuit
HITACHI LTD12 citations73
US5414571AMay 9, 1995
Adaptive equalization circuit for magnetic recording apparatus having high error immunity
HITACHI LTD18 citations73
US8049365B2Nov 1, 2011
Power device and power device power supply method
HITACHI LTD2 citations63
US7861112B2Dec 28, 2010
Storage apparatus and method for controlling the same
HITACHI LTD3 citations63
US7644199B2Jan 5, 2010
Storage device system and signal transmission method for storage device system
HITACHI LTD3 citations63
US7480765B2Jan 20, 2009
Storage unit and circuit for shaping communication signal
HITACHI LTD2 citations63
US7447816B2Nov 4, 2008
Disk array system and disk drive unit
HITACHI LTD3 citations63
US7284073B2Oct 16, 2007
Disk array apparatus and data relay method of the disk array apparatus
HITACHI LTD3 citations63
US7185124B2Feb 27, 2007
Disk array apparatus and data relay method of the disk array apparatus
HITACHI LTD3 citations63
US7116507B2Oct 3, 2006
Storage system having a power source state detection unit
HITACHI LTD2 citations63
US7096286B2Aug 22, 2006
Disk array device and method of changing the configuration of the disk array device
HITACHI LTD3 citations63
US7047427B2May 16, 2006
Disk subsystem
HITACHI LTD6 citations63
US7671485B2Mar 2, 2010
Storage system
HITACHI LTD4 citations62
US7925930B2Apr 12, 2011
Storage control system and control method for storage control system
HITACHI LTD1 citations52
US7685362B2Mar 23, 2010
Storage unit and circuit for shaping communication signal
HITACHI LTD0 citations52
US7401167B2Jul 15, 2008
Disk array apparatus and data relay method of the disk array apparatus
HITACHI LTD0 citations52
US7577775B2Aug 18, 2009
Storage system and configuration-change method thereof
HITACHI LTD0 citations41
US7111081B2Sep 19, 2006
Storage device having plural disk units and plural disk control units connected by control signal transmission cables that carry different control signals
HITACHI LTD0 citations40