Inventor
HIRONAKA KAZUEI
US20 patents
Patents
20 patentsUS11216317B1Jan 4, 2022
Computer system and computer system usage management method
HITACHI LTD6 citations85
US9916248B2Mar 13, 2018
Storage device and method for controlling storage device with compressed and uncompressed volumes and storing compressed data in cache
HITACHI LTD2 citations73
US10817209B2Oct 27, 2020
Storage controller and storage control method
HITACHI LTD4 citations72
US10222988B2Mar 5, 2019
Efficient management storage system via defining of several size units in advance
HITACHI LTD2 citations72
US12222957B2Feb 11, 2025
Storage system and data backup processing method in storage system
HITACHI LTD0 citations62
US11928524B2Mar 12, 2024
Computer system and computer system usage management method
HITACHI LTD0 citations62
US11822787B2Nov 21, 2023
Storage system and QoS management method in storage system
HITACHI LTD0 citations62
US11586516B2Feb 21, 2023
Storage system, storage device, and storage device management method
HITACHI LTD0 citations62
US12481564B2Nov 25, 2025
Method and system for preventing service level agreement violations in backup-as-a-service
HITACHI LTD0 citations58
US12578882B2Mar 17, 2026
System, method, and program for data transfer process
HITACHI LTD0 citations52
US11941284B2Mar 26, 2024
Management system, QoS violation detection method, and QoS violation detection program
HITACHI LTD0 citations52
US11507325B2Nov 22, 2022
Storage apparatus and method for management process
HITACHI LTD0 citations52
US12518010B2Jan 6, 2026
Storage device with ransomware attack detection function and management system
HITACHI LTD0 citations51
US12026391B2Jul 2, 2024
Copy control device and copy control method
HITACHI LTD0 citations51
US11416157B2Aug 16, 2022
Storage device and data migration method
HITACHI LTD0 citations51
US11048543B2Jun 29, 2021
Computer system and resource access control method for securely controlling access using roles with a plurality of users
HITACHI LTD0 citations51
US11294751B2Apr 5, 2022
Storage apparatus, dump data management method, and dump data management program
HITACHI LTD0 citations47
US10846012B2Nov 24, 2020
Storage system for minimizing required storage capacity during remote volume replication pair duplication
HITACHI LTD0 citations41
US10747440B2Aug 18, 2020
Storage system and storage system management method
HITACHI LTD0 citations41
US10089033B2Oct 2, 2018
Storage system
HITACHI LTD0 citations41