Inventor
MITSUMA SHINSUKE
JP102 patents
Patents
50 patentsUS7017179B1Mar 21, 2006
Data receiving apparatus and method
IBM101 citations97
US10242709B1Mar 26, 2019
Detecting damaged areas on magnetic tape based on measuring a number of servo errors
IBM16 citations94
US9600493B1Mar 21, 2017
Copy from source medium to target medium
IBM15 citations93
US10453485B1Oct 22, 2019
Increasing data storage capacity by reducing index entries
IBM14 citations86
US10497394B2Dec 3, 2019
Detecting damaged areas on magnetic tape based on measuring number of servo errors
IBM4 citations84
US9830085B1Nov 28, 2017
Recalling files stored on a tape
IBM5 citations84
US9459814B1Oct 4, 2016
Data writing in a file system
IBM6 citations84
US11681437B2Jun 20, 2023
Dynamic tape storage device data buffer
IBM4 citations75
US11914883B2Feb 27, 2024
Copy from LTFS to disk
IBM2 citations73
US11662954B1May 30, 2023
Duplicating tape media within a tape storage system based on copy tape database
IBM2 citations73
US11314439B2Apr 26, 2022
Copy from source medium to target medium
IBM1 citations73
US11289115B1Mar 29, 2022
Copying a storage tape
IBM4 citations73
US11176964B1Nov 16, 2021
Optimized tape unmount operation
IBM2 citations73
US11163500B2Nov 2, 2021
Caching files in a directory
IBM2 citations73
US11132332B2Sep 28, 2021
Method to write data ahead to snapshot area to avoid copy-on-write
IBM2 citations73
US11010104B2May 18, 2021
Optimized tape drive unmounting
IBM4 citations73
US10734021B1Aug 4, 2020
High speed file copy from tape using block grouping
IBM4 citations73
US10649697B2May 12, 2020
Technique for providing information on time to read a file
IBM4 citations73
US10545698B2Jan 28, 2020
Copy from source medium to target medium
IBM3 citations73
US10331348B2Jun 25, 2019
Reading and writing via file system for tape recording system
IBM2 citations73
US10229718B1Mar 12, 2019
Shortening the average reposition time to the beginning of files in a magnetic tape
IBM4 citations73
US10168920B2Jan 1, 2019
Duplexing file system data
IBM4 citations73
US10152993B1Dec 11, 2018
Save block data to tape in a reverse order
IBM4 citations73
US10120612B2Nov 6, 2018
Apparatus, method, and program product for tape copying
IBM2 citations73
US10073631B2Sep 11, 2018
Recalling files stored on a tape
IBM2 citations73
US10073632B2Sep 11, 2018
Recalling files stored on a tape
IBM2 citations73
US10067700B2Sep 4, 2018
Storing meta-information on tape recording systems
IBM2 citations73
US9851927B2Dec 26, 2017
File management in a file system
IBM5 citations73
US9292227B2Mar 22, 2016
Method for divisionally managing files on a user basis, and a storage system and computer program product thereof
IBM3 citations73
US11442627B2Sep 13, 2022
Data compression utilizing low-ratio compression and delayed high-ratio compression
IBM2 citations71
US11635903B2Apr 25, 2023
Cloud data migration
IBM2 citations70
US12411802B2Sep 9, 2025
Re-ordering files by keyword for migration
IBM0 citations63
US12105980B2Oct 1, 2024
Appending data to a tape cartridge during recall operations
IBM0 citations63
US12032825B2Jul 9, 2024
Dynamic tape storage device data buffer
IBM0 citations63
US12001405B2Jun 4, 2024
Tape unmounting protocol
IBM0 citations63
US11971853B2Apr 30, 2024
Optimizing removable media library file removal
IBM0 citations63
US11886724B2Jan 30, 2024
Copying 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 drive
IBM0 citations63
US11823709B2Nov 21, 2023
Write performance by enabling host data transfer immediately after a reposition command
IBM0 citations63
US11809731B2Nov 7, 2023
Appending data to a tape cartridge during recall operations
IBM0 citations63
US11640373B2May 2, 2023
Reordering files
IBM0 citations63
US11625184B1Apr 11, 2023
Recalling files from tape
IBM0 citations63
US11495262B1Nov 8, 2022
Duplexing data from multiple file systems onto a shared tape
IBM0 citations63
US11494338B2Nov 8, 2022
Caching files in a directory
IBM1 citations63
US11442659B2Sep 13, 2022
Reading sequentially stored files based on read ahead groups
IBM0 citations63
US11437062B1Sep 6, 2022
Reducing time to reposition tape to write index
IBM0 citations63
US11308989B1Apr 19, 2022
Optimizing tape drives in a tape library
IBM0 citations63
US11152018B1Oct 19, 2021
Optimized tape unmount operation
IBM1 citations63
US11042329B2Jun 22, 2021
Reordering a sequence of files based on compression rates in data transfer
IBM0 citations63
US11037598B2Jun 15, 2021
Detecting damaged areas on magnetic tape based on measuring a number of servo errors
IBM0 citations63
US11031041B2Jun 8, 2021
Detecting damaged areas on magnetic tape based on measuring a number of servo errors
IBM0 citations63
Showing the top 50 of 102 patents by PatentIndex Score.