Inventor
HOMMA SHIGEO
JP41 patents
⚠️ This page may combine multiple inventors who share the name “HOMMA SHIGEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
32 patentsUS9152337B2Oct 6, 2015
Storage apparatus and storage apparatus migration method
HITACHI LTD44 citations97
US5694576ADec 2, 1997
Cache control by adding record identification information to partial write request
HITACHI LTD21 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
US5390186AFeb 14, 1995
Method of fault handling for a disk control unit with built-in cache
HITACHI LTD47 citations92
US8880830B1Nov 4, 2014
Storage system
HITACHI LTD4 citations84
US6697866B1Feb 24, 2004
Access control method for data stored in fixed-block length format in computer configurations utilizing variable length data format interfaces
HITACHI LTD18 citations84
US8904133B1Dec 2, 2014
Storage apparatus and storage apparatus migration method
HITACHI LTD6 citations83
US8819338B2Aug 26, 2014
Storage system and storage apparatus
HITACHI LTD7 citations82
US6085286AJul 4, 2000
Cache control method and apparatus
HITACHI LTD6 citations74
US11210214B2Dec 28, 2021
Storage system and compression method of storing compressed data from storage controller physical address space to logical and physical address space of nonvolatile memory
HITACHI LTD2 citations73
US9830258B2Nov 28, 2017
Storage system
HITACHI LTD2 citations73
US9213497B2Dec 15, 2015
Storage apparatus and storage apparatus migration method
HITACHI LTD4 citations73
US10394662B2Aug 27, 2019
Storage apparatus and storage apparatus migration method
HITACHI LTD1 citations72
US7133987B2Nov 7, 2006
Storage system and snapshot management method thereof
HITACHI LTD8 citations70
US8375235B2Feb 12, 2013
Storage system
HITACHI LTD2 citations63
US11698857B2Jul 11, 2023
Storage system for migrating data between tiers
HITACHI LTD0 citations62
US11372755B2Jun 28, 2022
Storage system
HITACHI LTD0 citations62
US10459639B2Oct 29, 2019
Storage unit and storage system that suppress performance degradation of the storage unit
HITACHI LTD1 citations62
US10204003B2Feb 12, 2019
Memory device and storage apparatus
HITACHI LTD1 citations59
US10387062B2Aug 20, 2019
Storage system with cells changeable between two different level cell modes based on predicted lifetime
HITACHI LTD1 citations56
US10733092B2Aug 4, 2020
Storage system
HITACHI LTD0 citations52
US9361033B2Jun 7, 2016
Compound storage system and storage control method
HITACHI LTD0 citations52
US9003087B2Apr 7, 2015
Compound storage system and storage control method
HITACHI LTD1 citations52
US7082496B2Jul 25, 2006
Cache control method and apparatus
HITACHI LTD0 citations52
US9846619B2Dec 19, 2017
Storage apparatus and storage apparatus migration method
HITACHI LTD0 citations51
US9189391B2Nov 17, 2015
Storage system and data control method therefor
HITACHI LTD0 citations50
US10915441B2Feb 9, 2021
Storage system having non-volatile memory device
HITACHI LTD0 citations47
US9778986B2Oct 3, 2017
Storage system
HITACHI LTD0 citations42
US9740420B2Aug 22, 2017
Storage system and data management method
HITACHI LTD0 citations42
US10684785B2Jun 16, 2020
Storage system
HITACHI LTD0 citations41
US10013322B2Jul 3, 2018
Storage apparatus and storage apparatus control method
HITACHI LTD0 citations41
US10838855B2Nov 17, 2020
Storage system and storage control method
HITACHI LTD0 citations31