Inventor
HIROSHI ITAGAKI
Inventor
JP
Overview
Patents· 32 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing63%
G11BInformation storage based on relative movement between record carrier and transducer33%
G10LSpeech analysis techniques or speech synthesis2%
H04LTransmission of digital information, e.g. telegraphic communication2%
PatentTitleYear
12,411,802Re-ordering files by keyword for migration202512,271,626Read order determination on a tape202512,105,980Appending data to a tape cartridge during recall operations202412,032,825Dynamic tape storage device data buffer202411,971,853Optimizing removable media library file removal202411,954,353Tape-to-tape copying between nodes of magnetic tape file systems202411,934,699Linear tape file system unoptimized read detection202411,914,883Copy from LTFS to disk202411,886,724Copying data from a linear tape file system (LTFS)-based storage system to a random access nonvolatile memory (RANVM) drive in units of blocks of the drive202411,853,580Data migration management based on data location202311,823,709Write performance by enabling host data transfer immediately after a reposition command202311,809,731Appending data to a tape cartridge during recall operations202311,762,603Storing modified or unmodified portions of a file based on tape loading202311,681,437Dynamic tape storage device data buffer202311,662,954Duplicating tape media within a tape storage system based on copy tape database202311,640,373Reordering files202311,625,184Recalling files from tape202311,550,472Index file writing on tape storage media202311,495,262Duplexing data from multiple file systems onto a shared tape202211,494,338Caching files in a directory202211,487,457Reclassification of files in a hierarchical storage management system202211,442,659Reading sequentially stored files based on read ahead groups202211,437,062Reducing time to reposition tape to write index202211,314,439Copy from source medium to target medium202211,308,989Optimizing tape drives in a tape library202211,289,115Copying a storage tape202211,221,989Tape image reclaim in hierarchical storage systems202211,204,891Identifying partial update for tape file system202111,176,964Optimized tape unmount operation202111,175,843Data storage system with generation rollback control202111,163,500Caching files in a directory202111,152,018Optimized tape unmount operation2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2025Patents assigned to IBM (32)· patent assignee history
2021–2025Based in JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 32 | 2021–2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 32 | 2021–2025 |