P

Inventor

ITAGAKI HIROSHI

JP139 patents
⚠️ This page may combine multiple inventors who share the name “ITAGAKI HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IBM

39 patents
US6357030B1Mar 12, 2002

ECC block format for storage device

IBM91 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
US7710681B2May 4, 2010

Optimizing tape speed for a sync operation

IBM22 citations93
US7350021B2Mar 25, 2008

Method of controlling write and read of data for tape recording apparatus

IBM35 citations92
US6950257B1Sep 27, 2005

Writing to magnetic tape with backhitchless backspacing and data set invalidation

IBM24 citations92
US6079046AJun 20, 2000

Dynamic data transfer bandwidth control

IBM23 citations92
US6865043B2Mar 8, 2005

Data set information for recovery of synchronized data on magnetic tape

IBM27 citations91
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
US7903363B2Mar 8, 2011

Same Wrap backhitchless write method to encode data on a tape storage medium

IBM19 citations82
US11681437B2Jun 20, 2023

Dynamic tape storage device data buffer

IBM4 citations75
US7385776B2Jun 10, 2008

Device, method, and program product for controlling a tape data storage drive

IBM5 citations74
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
US11204891B2Dec 21, 2021

Identifying partial update for tape file system

IBM2 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
US9830102B2Nov 28, 2017

Method of writing a file to a plurality of media and a storage system thereof

IBM4 citations73
US9383945B2Jul 5, 2016

Method of writing a file to a plurality of media and a storage system thereof

IBM4 citations73
US9292227B2Mar 22, 2016

Method for divisionally managing files on a user basis, and a storage system and computer program product thereof

IBM3 citations73
US10162527B2Dec 25, 2018

Scalable and efficient access to and management of data and resources in a tiered data storage system

IBM3 citations72

CANON KK

6 patents

IDEMITSU PETROCHEMICAL CO

3 patents

ITAGAKI HIROSHI

1 patent

SHISEIDO CO LTD

1 patent

Showing the top 50 of 139 patents by PatentIndex Score.