Inventor
MUROTANI AKIRA
JP37 patents
⚠️ This page may combine multiple inventors who share the name “MUROTANI AKIRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
27 patentsUS6779078B2Aug 17, 2004
Data storage system and method of hierarchical control thereof
HITACHI LTD84 citations98
US7017003B2Mar 21, 2006
Disk array apparatus and disk array apparatus control method
HITACHI LTD105 citations97
US6052795AApr 18, 2000
Recovery method and system for continued I/O processing upon a controller failure
HITACHI LTD51 citations96
US6959360B2Oct 25, 2005
Data storage system and method of hierarchical control thereof
HITACHI LTD39 citations93
US6412078B2Jun 25, 2002
External storage
HITACHI LTD30 citations93
US6321346B1Nov 20, 2001
External storage
HITACHI LTD18 citations93
US7430572B2Sep 30, 2008
Storage control system and method
HITACHI LTD13 citations92
US7313579B2Dec 25, 2007
Network storage system and handover method between plurality of network storage devices
HITACHI LTD29 citations92
US7035883B2Apr 25, 2006
Storage control system and method
HITACHI LTD22 citations92
US6959344B2Oct 25, 2005
Method and apparatus for storage system
HITACHI LTD25 citations92
US7953942B2May 31, 2011
Storage system and operation method of storage system
HITACHI LTD11 citations84
US7475206B2Jan 6, 2009
Method for hierarchical control of data migration in a storage system
HITACHI LTD9 citations84
US7380064B2May 27, 2008
Storage device and storage device data life cycle control method
HITACHI LTD11 citations84
US7870104B2Jan 11, 2011
Storage system and storage device archive control method
HITACHI LTD12 citations83
US7558988B2Jul 7, 2009
Storage system and control method thereof
HITACHI LTD6 citations74
US8041682B2Oct 18, 2011
Storage control system and method
HITACHI LTD5 citations73
US7801933B2Sep 21, 2010
Storage control system and method
HITACHI LTD6 citations73
US7107332B2Sep 12, 2006
Storage controller and computer system for managing information related to connection port
HITACHI LTD8 citations73
US7047290B2May 16, 2006
Storage controller and computer system for managing information related to connection port
HITACHI LTD6 citations73
US7822928B2Oct 26, 2010
Storage device and storage device data life cycle control method
HITACHI LTD3 citations63
US7567969B2Jul 28, 2009
File management apparatus and method, and storage system
HITACHI LTD2 citations63
US7013317B2Mar 14, 2006
Method for backup and storage system
HITACHI LTD6 citations63
US7987387B2Jul 26, 2011
File sharing system and method for storing and managing failure information based on statuses of a main control and a power supply
HITACHI LTD2 citations62
US7925831B2Apr 12, 2011
Disk array apparatus and disk array apparatus control method
HITACHI LTD4 citations62
US9369527B2Jun 14, 2016
File server, file server control method, and storage system
HITACHI LTD2 citations59
US7987206B2Jul 26, 2011
File-sharing system and method of using file-sharing system to generate single logical directory structure
HITACHI LTD1 citations52
US7577788B2Aug 18, 2009
Disk array apparatus and disk array apparatus control method
HITACHI LTD0 citations52