Inventor
YOKOYAMA TOMOKAZU
JP22 patents
⚠️ This page may combine multiple inventors who share the name “YOKOYAMA TOMOKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
21 patentsUS7423354B2Sep 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
US7051233B2May 23, 2006
Method for backing up power supply of disk array device and system thereof
HITACHI LTD29 citations92
US7051216B2May 23, 2006
Disk array device and method of supplying power to disk array device
HITACHI LTD27 citations92
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
US7809983B2Oct 5, 2010
Storage system that finds occurrence of power source failure
HITACHI LTD13 citations83
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
US8037362B2Oct 11, 2011
Storage system that finds occurrence of power source failure
HITACHI LTD5 citations73
US8049365B2Nov 1, 2011
Power device and power device power supply method
HITACHI LTD2 citations63
US7480765B2Jan 20, 2009
Storage unit and circuit for shaping communication signal
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
US7667918B2Feb 23, 2010
Disk array device
HITACHI LTD3 citations61
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
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