Inventor
Keishi Tamura
Inventor
Odawara, JP
Overview
Patents· 39 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing71%
H04LTransmission of digital information, e.g. telegraphic communication22%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
PatentTitleYear
10,394,662Storage apparatus and storage apparatus migration method201910,248,511Storage system having multiple local and remote volumes and multiple journal volumes using dummy journals for sequence control201910,191,685Storage system, storage device, and data transfer method201910,140,035Method for appropriately controlling duplicated volumes in virtual volume subsystems20189,846,619Storage apparatus and storage apparatus migration method20179,680,933'Computer system'20179,311,012'Storage system and method for migrating the same'20169,152,337'Storage apparatus and storage apparatus migration method'20159,092,142'Storage system and method of controlling the same'20159,021,224'Method and apparatus for enhanced computer security'20159,003,145'Management server and data migration method'20158,904,133'Storage apparatus and storage apparatus migration method'20148,832,386'Management server and data migration method'20148,086,768'Storage system and control method of storage system'20117,966,448'Storage apparatus and data writing method'20117,844,794'Storage system with cache threshold control'20107,769,968'Storage control system'20107,707,357'Storage control system and method having first and second channel control sections which convert file level data to block level data, judge whether block level data is to be stored in external storage and identifies save destination address of file level data based on metadata'20107,673,107'Storage system and storage control device'20107,636,818'Storage virtualization system and method'20097,587,567'Storage control system'20097,526,618'Storage control system'20097,519,786'Storage system, storage access restriction method and computer program product'20097,493,466'Virtualization system for virtualizing disks drives of a disk array system'20097,475,213'Storage control system and storage control method'20097,447,859'Method of performing active data copying processing, and storage subsystem and storage control apparatus for performing active data copying processing'20087,441,095'Storage system and storage controller'20087,424,582'Storage system, formatting method and computer program to enable high speed physical formatting'20087,421,553'Remote copy operation between different sort of storage system and storage device system'20087,373,474'Storage system, configuration management method, and program'20087,343,464'Storage controller and storage system'20087,337,264'Storage control system and method which converts file level data into block level data which is stored at different destinations based on metadata of files being managed'20087,237,083'Storage control system'20077,228,397'Method and system for backing up storage system data'20077,165,157'Method of performing active data copying processing, and storage subsystem and storage control apparatus for performing active data copying processing'20077,143,228'Storage control system and method for storing block level data in internal or external storage control system based on control information via networks'20067,124,258'Storage system and storage device system'20067,117,331'Storage control system'20066,728,848'Method and system for backing up storage system data'2004Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2004–2019Patents assigned to HITACHI LTD (39)· patent assignee history
2004–2010Based in Odawara, JP· patent location history
2008Based in Yokohama, JP· patent location history
2009–2019Based in Tokyo, JP· patent location history
2009–2015Based in Fujisawa, JP· patent location history
2011–2015Patents assigned to TAMURA KEISHI (4)· patent assignee history
2014Patents assigned to OZAKI SATORU (1)· patent assignee history
2015Patents assigned to NASHIMOTO KUNIHIKO (1)· patent assignee history
2015Patents assigned to SAITO HIDEO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 39 | 2004–2019 |
| TAMURA KEISHIself | 4 | 2011–2015 |
| NASHIMOTO KUNIHIKO | 1 | 2015 |
| OZAKI SATORU | 1 | 2014 |
| SAITO HIDEO | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Odawara, JP | 20 | 2004–2010 |
| Tokyo, JP | 10 | 2009–2019 |
| Fujisawa, JP | 8 | 2009–2015 |
| Yokohama, JP | 1 | 2008 |