Inventor
NAKAGAWA HIROTAKA
JP35 patents
⚠️ This page may combine multiple inventors who share the name “NAKAGAWA HIROTAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
21 patentsUS7996611B2Aug 9, 2011
Backup data management system and backup data management method
HITACHI LTD9 citations84
US7181516B2Feb 20, 2007
Method for allocating storage regions and performance guarantee method based on hints, storage device and management program
HITACHI LTD11 citations84
US7260699B2Aug 21, 2007
Method, device and program for managing volume
HITACHI LTD9 citations74
US11740823B2Aug 29, 2023
Storage system and storage control method
HITACHI LTD2 citations73
US7653784B2Jan 26, 2010
Management computer, power supply control method and computer system
HITACHI LTD4 citations63
US7249240B2Jul 24, 2007
Method, device and program for managing volume
HITACHI LTD3 citations63
US9395926B2Jul 19, 2016
Storage system and management computer
HITACHI LTD2 citations62
US9052839B2Jun 9, 2015
Virtual storage apparatus providing a plurality of real storage apparatuses
HITACHI LTD2 citations62
US7376746B2May 20, 2008
Method and program for disclosing and providing services on network
HITACHI LTD2 citations62
US7366867B2Apr 29, 2008
Computer system and storage area allocation method
HITACHI LTD2 citations58
US11360690B2Jun 14, 2022
Storage device and method for erasing data of storage device
HITACHI LTD0 citations52
US8935537B2Jan 13, 2015
Storage device and its control method
HITACHI LTD0 citations52
US7502907B2Mar 10, 2009
Method, device and program for managing volume
HITACHI LTD0 citations52
US11048543B2Jun 29, 2021
Computer system and resource access control method for securely controlling access using roles with a plurality of users
HITACHI LTD0 citations51
US9262437B2Feb 16, 2016
Storage system and control method for storage system
HITACHI LTD1 citations51
US11880589B2Jan 23, 2024
Storage system and control method
HITACHI LTD0 citations49
US9092158B2Jul 28, 2015
Computer system and its management method
HITACHI LTD1 citations49
US10761767B2Sep 1, 2020
Computer system and method for controlling storage apparatus that has replication direction from first logical device (in first storage) to second logical device (in second storage) and from said second logical device to third logical device (in said second storage), wherein said replication direction is reversed when second computer takes over for first computer
HITACHI LTD0 citations42
US10762021B2Sep 1, 2020
Information processing system, and control method of information processing system
HITACHI LTD0 citations42
US10013216B2Jul 3, 2018
Storage system
HITACHI LTD0 citations41
US9270742B2Feb 23, 2016
Computer system and control method of computer system
HITACHI LTD0 citations41
NAKAGAWA HIROTAKA
8 patentsUS8151047B2Apr 3, 2012
Storage system and management method thereof
NAKAGAWA HIROTAKA7 citations84
US8713307B2Apr 29, 2014
Computer system and volume migration control method using the same
NAKAGAWA HIROTAKA6 citations69
US8452923B2May 28, 2013
Storage system and management method thereof
NAKAGAWA HIROTAKA2 citations62
US8341425B2Dec 25, 2012
Storage device and its control method
NAKAGAWA HIROTAKA2 citations62
US8074090B2Dec 6, 2011
Storage system including plurality of storage apparatuses
NAKAGAWA HIROTAKA3 citations62
US8639775B2Jan 28, 2014
Computer system and its management method
NAKAGAWA HIROTAKA3 citations59
US8499098B2Jul 30, 2013
Storage system and storage system communication path management method
NAKAGAWA HIROTAKA2 citations52
US8074091B2Dec 6, 2011
Storage apparatus for power saving and achieving longest mean time between failures
NAKAGAWA HIROTAKA0 citations51
NIPPON KOKAN KK
5 patentsUS5049458ASep 17, 1991
Fuel cell
NIPPON KOKAN KK32 citations90
US4937152AJun 26, 1990
Fuel cell
NIPPON KOKAN KK26 citations90
US4886547ADec 12, 1989
Powder manufacturing apparatus and method therefor
NIPPON KOKAN KK19 citations81
US4450018AMay 22, 1984
Fused flux for inclined submerged arc welding
NIPPON KOKAN KK1 citations42
US4764209AAug 16, 1988
Method for manufacturing alloy
NIPPON KOKAN KK0 citations40