Inventor
AKUTSU HIROAKI
JP76 patents
⚠️ This page may combine multiple inventors who share the name “AKUTSU HIROAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
44 patentsUS10185624B2Jan 22, 2019
Distributed storage system
HITACHI LTD37 citations97
US7739540B2Jun 15, 2010
Information system, data transfer method and data protection method
HITACHI LTD40 citations96
US7953947B2May 31, 2011
Creating a snapshot based on a marker transferred from a first storage system to a second storage system
HITACHI LTD14 citations93
US10956063B2Mar 23, 2021
Virtual storage system
HITACHI LTD12 citations86
US10452293B2Oct 22, 2019
Virtual storage system
HITACHI LTD12 citations84
US9235353B2Jan 12, 2016
Storage apparatus and management method including determination of migration of data from one storage area to another based on access frequency
HITACHI LTD7 citations84
US9176858B2Nov 3, 2015
Storage system configured to selectively utilize data compression based on real pool usage rates
HITACHI LTD7 citations84
US8880830B1Nov 4, 2014
Storage system
HITACHI LTD4 citations84
US8819371B2Aug 26, 2014
Storage system
HITACHI LTD7 citations84
US7925914B2Apr 12, 2011
Information system, data transfer method and data protection method
HITACHI LTD7 citations84
US7725668B2May 25, 2010
Computer system and snapshot creation method thereof, delaying snapshot creation until pending transfer between volumes is complete
HITACHI LTD12 citations84
US9465561B2Oct 11, 2016
Storage system and storage control method
HITACHI LTD8 citations82
US11662953B2May 30, 2023
Data compression/decompression system, and data compression/decompression method
HITACHI LTD4 citations73
US10359967B2Jul 23, 2019
Computer system
HITACHI LTD3 citations73
US10120601B2Nov 6, 2018
Storage system and data processing method
HITACHI LTD5 citations73
US9830258B2Nov 28, 2017
Storage system
HITACHI LTD2 citations73
US9411527B2Aug 9, 2016
Storage system and data management method
HITACHI LTD3 citations73
US9329999B2May 3, 2016
Storage system improving read performance by controlling data caching
HITACHI LTD3 citations73
US8918609B2Dec 23, 2014
Storage apparatus and data management method to determine whether to migrate data from a first storage device to a second storage device based on an access frequency of a particular logical area
HITACHI LTD5 citations73
US11435924B2Sep 6, 2022
Storage system and storage cost optimization method
HITACHI LTD2 citations72
US11829617B2Nov 28, 2023
Virtual storage system
HITACHI LTD0 citations63
US11604584B2Mar 14, 2023
Storage system
HITACHI LTD0 citations63
US11150829B2Oct 19, 2021
Storage system and data control method
HITACHI LTD1 citations63
US12354311B2Jul 8, 2025
Data compression and decompression system and method thereof
HITACHI LTD0 citations62
US12050797B2Jul 30, 2024
Storage system and storage cost optimization method
HITACHI LTD0 citations62
US11886294B2Jan 30, 2024
Distributed storage system
HITACHI LTD0 citations62
US11698857B2Jul 11, 2023
Storage system for migrating data between tiers
HITACHI LTD0 citations62
US11487619B2Nov 1, 2022
Distributed storage system
HITACHI LTD0 citations62
US11372755B2Jun 28, 2022
Storage system
HITACHI LTD0 citations62
US11256422B2Feb 22, 2022
Storage system and compressed sensor data recording method for sensors grouped based on parameters
HITACHI LTD1 citations62
US11036585B2Jun 15, 2021
Distributed storage system
HITACHI LTD0 citations62
US10459638B2Oct 29, 2019
Computer system that generates group information and redundant code based on user data and changes the group information and redundant code based on transmission data, control method for computer system, and recording medium
HITACHI LTD1 citations62
US11842055B2Dec 12, 2023
Data processing system and data compression method
HITACHI LTD0 citations61
US10310758B2Jun 4, 2019
Storage system and storage control method
HITACHI LTD1 citations61
US12530811B2Jan 20, 2026
Information compression system and information compression method
HITACHI LTD0 citations60
US11941255B2Mar 26, 2024
Storage system and data management method
HITACHI LTD0 citations60
US11327661B2May 10, 2022
Storage system and data management method
HITACHI LTD0 citations60
US12586256B2Mar 24, 2026
Data processing method and data processing system
HITACHI LTD0 citations52
US12244836B2Mar 4, 2025
Data compression processing system and data compression processing method
HITACHI LTD0 citations52
US11150846B2Oct 19, 2021
Storage system, computer-readable recording medium, and control method for system that reconstructs and distributes data
HITACHI LTD0 citations52
US11029850B2Jun 8, 2021
System of controlling data rebalance and its method
HITACHI LTD0 citations52
US10733092B2Aug 4, 2020
Storage system
HITACHI LTD0 citations52
US10656836B2May 19, 2020
Storage system
HITACHI LTD0 citations52
US10452302B2Oct 22, 2019
Storage system and data control method
HITACHI LTD0 citations52
AKUTSU HIROAKI
3 patentsYOSHIHARA TOMOHIRO
1 patentMATSUSHITA TAKAKI
1 patentJIN AZUSA
1 patentShowing the top 50 of 76 patents by PatentIndex Score.