Inventor
ASAKA YOSHIHIRO
JP75 patents
⚠️ This page may combine multiple inventors who share the name “ASAKA YOSHIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
47 patentsUS7167963B2Jan 23, 2007
Storage system with multiple remote site copying capability
HITACHI LTD104 citations99
US7117327B2Oct 3, 2006
Data processing system
HITACHI LTD98 citations99
US7159088B2Jan 2, 2007
Storage system and data processing system
HITACHI LTD85 citations98
US7130975B2Oct 31, 2006
Data processing system
HITACHI LTD101 citations98
US7076620B2Jul 11, 2006
Data processing system including storage systems
HITACHI LTD120 citations98
US5835938ANov 10, 1998
Read/write control for grouped disk storage including parallel access
HITACHI LTD39 citations96
US7512755B2Mar 31, 2009
Computer system storing data on multiple storage systems
HITACHI LTD18 citations93
US7293050B2Nov 6, 2007
Remote copy system
HITACHI LTD13 citations93
US7861034B2Dec 28, 2010
Load distribution of multiple disks
HITACHI LTD33 citations92
US7660957B2Feb 9, 2010
Data processing system
HITACHI LTD18 citations92
US7415589B2Aug 19, 2008
Data processing system with multiple storage systems
HITACHI LTD23 citations92
US7337299B2Feb 26, 2008
Storage apparatus having virtual-to-actual device addressing scheme
HITACHI LTD13 citations92
US6728832B2Apr 27, 2004
Distribution of I/O requests across multiple disk units
HITACHI LTD19 citations92
US6671767B2Dec 30, 2003
Storage subsystem, information processing system and method of controlling I/O interface
HITACHI LTD30 citations92
US6434666B1Aug 13, 2002
Memory control apparatus and method for storing data in a selected cache memory based on whether a group or slot number is odd or even
HITACHI LTD25 citations92
US6148367ANov 14, 2000
Controller limiting modification of cache based upon amount of dirty lines in the cache
HITACHI LTD16 citations92
US6108750AAug 22, 2000
Simultaneous read/write control of data storage disk units
HITACHI LTD20 citations92
US5987569ANov 16, 1999
Memory control apparatus and method for controlling usage amounts for a plurality of cache memories
HITACHI LTD28 citations92
US5694576ADec 2, 1997
Cache control by adding record identification information to partial write request
HITACHI LTD21 citations92
US5680574AOct 21, 1997
Data distribution utilizing a master disk unit for fetching and for writing to remaining disk units
HITACHI LTD28 citations92
US5497472AMar 5, 1996
Cache control method and apparatus for storing data in a cache memory and for indicating completion of a write request irrespective of whether a record to be accessed exists in an external storage unit
HITACHI LTD26 citations92
US5257352AOct 26, 1993
Input/output control method and system
HITACHI LTD52 citations92
US7934065B2Apr 26, 2011
Computer system storing data on multiple storage systems
HITACHI LTD10 citations84
US7418565B2Aug 26, 2008
Remote e copy system and a remote copy method utilizing multiple virtualization apparatuses
HITACHI LTD16 citations84
US5418929AMay 23, 1995
Controller for storage unit and method of controlling storage unit
HITACHI LTD16 citations82
US5369751ANov 29, 1994
Disk cache control unit
HITACHI LTD19 citations82
US5307473AApr 26, 1994
Controller for storage unit and method of controlling storage unit
HITACHI LTD19 citations82
US7765370B2Jul 27, 2010
Computer system storing data on multiple storage systems
HITACHI LTD7 citations74
US7529901B2May 5, 2009
Storage system and data processing system
HITACHI LTD4 citations74
US7447855B2Nov 4, 2008
Data processing method providing remote copy in a system having first, second, and third storage systems
HITACHI LTD7 citations74
US7437389B2Oct 14, 2008
Remote copy system
HITACHI LTD7 citations74
US7421435B2Sep 2, 2008
Data processing system and storage subsystem provided in data processing system
HITACHI LTD5 citations74
US7395265B2Jul 1, 2008
Data processing system and storage subsystem provided in data processing system
HITACHI LTD5 citations74
US7313663B2Dec 25, 2007
Storage system and data processing system
HITACHI LTD6 citations74
US7254674B2Aug 7, 2007
Distribution of I/O requests across multiple disk units
HITACHI LTD7 citations74
US7240173B2Jul 3, 2007
Data processing system
HITACHI LTD7 citations74
US7143254B2Nov 28, 2006
Remote copy system
HITACHI LTD9 citations74
US6938125B2Aug 30, 2005
Storage system with data prefetch function
HITACHI LTD4 citations74
US6631443B1Oct 7, 2003
Disk storage system having capability for performing parallel read operation
HITACHI LTD8 citations74
US6085286AJul 4, 2000
Cache control method and apparatus
HITACHI LTD6 citations74
US5623631AApr 22, 1997
Limiting modification of cache entries in a write-back cache based upon the amount of dirty lines in the cache
HITACHI LTD7 citations74
US7640411B2Dec 29, 2009
Remote copy method and remote copy system
HITACHI LTD4 citations73
US7487328B2Feb 3, 2009
Storage apparatus having virtual-to-actual device addressing scheme
HITACHI LTD5 citations73
US7373436B2May 13, 2008
Storage control device and method for management of storage control device
HITACHI LTD7 citations73
US6611899B2Aug 26, 2003
Memory control apparatus and method for storing data in a selected cache memory
HITACHI LTD12 citations73
US8375000B2Feb 12, 2013
Remote copy system
HITACHI LTD1 citations63
US7917714B2Mar 29, 2011
Data processing system
HITACHI LTD1 citations63
SUISHU KAZUHITO
1 patentITO RYUSUKE
1 patentARAKAWA HIROSHI
1 patentShowing the top 50 of 75 patents by PatentIndex Score.