Inventor
Tomohiro Kawaguchi
Inventor
Tokyo, JP
Overview
Patents· 96 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing76%
G01RMeasuring electric variables3%
Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use3%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles2%
B60WConjoint control of vehicle sub-units of different type or different function2%
C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms2%
G01NInvestigating or analysing materials by determining their chemical or physical properties2%
H04LTransmission of digital information, e.g. telegraphic communication2%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution2%
Y02TClimate change mitigation technologies related to transportation2%
PatentTitleYear
11,112,971Storage device, data management method, and data management program202111,106,371I/O path reservation with out of band management202111,080,081Virtual machine and volume allocation in hyperconverged infrastructure environment and storage system202111,079,956Storage system and storage control method202111,080,080Virtual machine and volume allocation in hyperconverged infrastructure environment and storage system202110,846,012Storage system for minimizing required storage capacity during remote volume replication pair duplication202010,846,023Storage device and storage area management method for reducing garbage collection processing202010,817,209Storage controller and storage control method202010,776,035Storage system and storage control method202010,762,021Information processing system, and control method of information processing system202010,761,767Computer 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 computer202010,747,624Storage system and control method of storage system using asynchronous remote copying to backup volume at specific time points202010,740,250Storage apparatus202010,732,901Storage system and storage control method202010,725,878Storage apparatus, storage system, and control method of storage system for dynamically securing free space when a storage apparatus is disused202010,691,564Storage system and storage control method202010,656,849Storage system and control method thereof202010,628,088Computer system202010,592,268Management computer and resource management method configured to combine server resources and storage resources and allocate the combined resources to virtual machines202010,579,433Storage system and information management method having a representative node and a plurality of general nodes including a plurality of resources202010,572,171Storage system202010,558,383Storage system202010,528,279Storage management server, method of controlling storage management server, and computer system202010,503,440Computer system, and data migration method in computer system201910,452,293Virtual storage system201910,394,662Storage apparatus and storage apparatus migration method201910,353,592Storage system, computer system, and control method for storage system201910,296,429Storage device201910,191,685Storage system, storage device, and data transfer method201910,140,035Method for appropriately controlling duplicated volumes in virtual volume subsystems201810,114,691Information storage system201810,108,363Storage system and notification control method201810,025,525Storage system, storage control method, and computer system20189,952,805Storage system and data write method using a logical volume to either store data successfully onto a first memory or send a failure response to a server computer if the storage attempt fails20189,875,059Storage system20189,846,619Storage apparatus and storage apparatus migration method20179,794,342'Storage system and control method for storage system'20179,652,165'Storage device and data management method'20179,632,701'Storage system'20179,563,383'Storage system with primary and secondary data storage groups and control method thereof'20179,547,450'Method and apparatus to change tiers'20179,513,810'Fast accessible compressed thin provisioning volume'20169,361,177'Methods and apparatus for managing error codes for storage systems coupled with external storage systems'20169,323,461'Traffic reducing on data migration'20169,286,200'Tiered storage pool management and control for loosely coupled multiple storage environment'20169,262,437'Storage system and control method for storage system'20169,229,637'Volume copy management method on thin provisioning pool of storage subsystem'20169,218,131'Method and apparatus to change tiers'20159,213,497'Storage apparatus and storage apparatus migration method'20159,189,335'Fast data recovery from HDD failure'20159,176,858'Storage system configured to selectively utilize data compression based on real pool usage rates'20159,152,337'Storage apparatus and storage apparatus migration method'20159,052,839'Virtual storage apparatus providing a plurality of real storage apparatuses'20158,965,856'Increase in deduplication efficiency for hierarchical storage system'20158,949,562'Storage system and method of controlling storage system'20158,943,286'Storage system'20158,932,807'High throughput in vitro translation (cell-lysate based) assay for detecting quorum sensing signals'20158,909,896'Network efficiency for continuous remote copy'20148,904,133'Storage apparatus and storage apparatus migration method'20148,898,384'Fast accessible compressed thin provisioning volume'20148,775,733'Distribution design for fast raid rebuild architecture based on load to limit number of redundant storage devices'20148,762,768'Storage system for restoring data stored in failed storage device'20148,738,963'Methods and apparatus for managing error codes for storage systems coupled with external storage systems'20148,719,220'Low traffic failback remote copy'20148,639,969'Fast data recovery from HDD failure'20148,635,391'Systems and methods for eliminating single points of failure for storage subsystems'20148,621,164'Tiered storage pool management and control for loosely coupled multiple storage environment'20138,583,883'Storage system comprising function for reducing power consumption'20138,566,550'Application and tier configuration management in dynamic page reallocation storage system'20138,546,071'High-throughput in vitro translation (cell-lysate based) assay for detecting quorum sensing signals'20138,522,071'Storage system for restoring data stored in failed storage device'20138,453,011'Storage system and data restoration method thereof'20138,447,943'Reduction of I/O latency for writable copy-on-write snapshot function'20138,407,409'Metrics and management for flash memory storage life'20138,407,517'Methods and apparatus for managing error codes for storage systems coupled with external storage systems'20138,402,214'Dynamic page reallocation storage system management'20138,356,140'Methods and apparatus for controlling data between storage systems providing different storage functions'20138,356,147'Tiered storage pool management and control for loosely coupled multiple storage environment'20138,352,447'Method and apparatus to align and deduplicate objects'20138,261,036'Storage system comprising function for reducing power consumption'20128,250,031'Low traffic failback remote copy'20128,234,519'Fast data recovery from HDD failure'20128,166,232'Metrics and management for flash memory storage life'20128,131,927'Fast accessible compressed thin provisioning volume'20128,060,468'Storage system and data recovery method'20118,041,914'Storage system comprising function for reducing power consumption'20118,010,837'Storage sub system and data restoration method thereof'20117,917,805'Storage system for restoring data stored in failed storage device'20117,904,749'Fast data recovery from HDD failure'20117,702,852'Storage system for suppressing failures of storage media group'20107,594,137'Storage system and data restoration method thereof'20097,034,504'Battery status monitoring apparatus which monitors internal battery resistance, saturation polarization detecting method and dischargeable capacity detecting method'20066,794,876'Method and device for estimating open circuit voltage of battery'20046,624,636'Method and apparatus for estimating terminal voltage of battery, method and apparatus for computing open circuit voltage of battery, and method and apparatus for computing battery capacity'20036,518,735'Method and apparatus for measuring pure resistance of in-vehicle battery'20034,688,208'Time division exchange for carrying out a loop-back test'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–2014Based in Yokohama, JP· patent location history
2003–2006Patents assigned to YAZAKI CORP (4)· patent assignee history
2003–2006Based in Shizuoka, JP· patent location history
2009–2021Patents assigned to HITACHI LTD (89)· patent assignee history
2011–2016Patents assigned to KAWAGUCHI TOMOHIRO (30)· patent assignee history
2011–2013Patents assigned to EGUCHI YOSHIAKI (5)· patent assignee history
2011–2016Based in Cupertino, CA, US· patent location history
2013–2015Patents assigned to CHEN YUNG-PIN (2)· patent assignee history
2013–2021Based in Tokyo, JP· patent location history
2014–2016Based in Chigasaki, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 89 | 2009–2021 |
| KAWAGUCHI TOMOHIROself | 30 | 2011–2016 |
| EGUCHI YOSHIAKI | 5 | 2011–2013 |
| YAZAKI CORP | 4 | 2003–2006 |
| CHEN YUNG-PIN | 2 | 2013–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 45 | 2013–2021 |
| Cupertino, California, US | 29 | 2011–2016 |
| Yokohama, JP | 9 | 1987–2014 |
| Chigasaki, JP | 4 | 2014–2016 |
| Shizuoka, JP | 4 | 2003–2006 |