Inventor · disambiguated record
Masayuki Iwanaga
Also filed as: IWANAGA MASAYUKI
43 granted patents·5 pending applications·130 citations·filing 1978–2022
97Inventor score
Top patents by PatentIndex Score
48 records- 0195US10937453B1Magnetic tape device capable of selecting codeword rewrite based on determined thresholdIBM·Filed 2020·Granted Mar 2, 2021·5 cites·20 claims
- 0295US9997193B1Selective index writing prior to unthreading a magnetic recording tapeIBM·Filed 2017·Granted Jun 12, 2018·17 cites·23 claims
- 0395US9513836B1Migration of data to sequential access mediumIBM·Filed 2016·Granted Dec 6, 2016·12 cites·1 claims
- 0494US9536561B1Writing dummy indices on a tape medium partitionIBM·Filed 2015·Granted Jan 3, 2017·16 cites·18 claims
- 0592US10078466B2Writing files to a storage mediumIBM·Filed 2017·Granted Sep 18, 2018·7 cites·18 claims
- 0688US9965189B2Writing data spanning plurality of tape cartridgesIBM·Filed 2015·Granted May 8, 2018·4 cites·8 claims
- 0787US9348837B2Index writing in a linear tape file systemIBM·Filed 2013·Granted May 24, 2016·10 cites·20 claims
- 0882US10042556B2Reclamation of storage mediumIBM·Filed 2015·Granted Aug 7, 2018·3 cites·20 claims
- 0982US9891834B2Writing data spanning plurality of tape cartridgesIBM·Filed 2016·Granted Feb 13, 2018·2 cites·8 claims
- 1082US4223388AScintillation cameraTOKYO SHIBAURA ELECTRIC CO·Filed 1978·Granted Sep 16, 1980·31 cites·8 claims
- 1181US9766835B2Migration of data to sequential access mediumIBM·Filed 2016·Granted Sep 19, 2017·2 cites·1 claims
- 1281US9760305B2Migration of data to sequential access mediumIBM·Filed 2015·Granted Sep 12, 2017·2 cites·19 claims
- 1381US9632949B2Storage management method, storage management system, computer system, and programIBM·Filed 2015·Granted Apr 25, 2017·3 cites·20 claims
- 1480US9502052B1Writing redundant data on tape mediaIBM·Filed 2015·Granted Nov 22, 2016·5 cites·20 claims
- 1579US9058843B2Recovery of data written before initialization of format in tape mediaIBM·Filed 2014·Granted Jun 16, 2015·4 cites·17 claims
- 1677US10282098B2Writing data spanning plurality of tape cartridgesIBM·Filed 2017·Granted May 7, 2019·1 cites·16 claims
- 1773US10620838B2Reclamation of storage mediumIBM·Filed 2018·Granted Apr 14, 2020·1 cites·20 claims
- 1872US9946487B2Method of moving files in hierarchical storage systemIBM·Filed 2017·Granted Apr 17, 2018·1 cites·17 claims
- 1968US9952770B2Responding to recall operations based on file migration timeIBM·Filed 2016·Granted Apr 24, 2018·1 cites·20 claims
- 2068US9940061B2Method of moving files in hierarchical storage systemIBM·Filed 2015·Granted Apr 10, 2018·1 cites·17 claims
- 2166US10204653B2Selective index writing prior to unthreading a magnetic recording tapeIBM·Filed 2018·Granted Feb 12, 2019·1 cites·23 claims
- 2265US10282427B2Metadata storing techniqueIBM·Filed 2015·Granted May 7, 2019·1 cites·16 claims
- 2363US11042508B2Information managementIBM·Filed 2019·Granted Jun 22, 2021·0 cites·20 claims
- 2462US10572154B2Writing data spanning plurality of tape cartridgesIBM·Filed 2017·Granted Feb 25, 2020·0 cites·7 claims
- 2560US12124740B2Selective hard and soft rewritesIBM·Filed 2022·Granted Oct 22, 2024·0 cites·19 claims
- 2659US9766836B2Migration of data to sequential access mediumIBM·Filed 2016·Granted Sep 19, 2017·0 cites·1 claims
- 2755US11967342B2Header decoding mechanism for tape storageIBM·Filed 2022·Granted Apr 23, 2024·0 cites·20 claims
- 2855US2017132221A1Information managementIBM·Filed 2017·Application pending·0 cites
- 2954US10331622B2Information managementIBM·Filed 2015·Granted Jun 25, 2019·0 cites·11 claims
- 3054US9858010B2Writing files to a storage mediumIBM·Filed 2015·Granted Jan 2, 2018·0 cites·20 claims
- 3152US10169344B2Deleting files written on tapeIBM·Filed 2017·Granted Jan 1, 2019·0 cites·1 claims
- 3252US9984078B2Deleting files written on tapeIBM·Filed 2017·Granted May 29, 2018·0 cites·1 claims
- 3351US9684454B2Method, storage system, and program for spanning single file across plurality of tape mediaIBM·Filed 2014·Granted Jun 20, 2017·0 cites·18 claims
- 3450US9947355B2Encoding information on tape using write offset gapsIBM·Filed 2017·Granted Apr 17, 2018·0 cites·15 claims
- 3550US9746994B2Icon display of file history recorded in storage as additional dataIBM·Filed 2014·Granted Aug 29, 2017·0 cites·7 claims
- 3649US9753930B2Deleting files written on tapeIBM·Filed 2015·Granted Sep 5, 2017·0 cites·20 claims
- 3748US9733859B2Method for writing file while spanning file over a plurality of tape cartridgesIBM·Filed 2015·Granted Aug 15, 2017·0 cites·17 claims
- 3848US9620157B2Encoding information on tape using write offset gapsIBM·Filed 2015·Granted Apr 11, 2017·0 cites·3 claims
- 3947US10359964B2Reducing time to read many files from tapeIBM·Filed 2015·Granted Jul 23, 2019·0 cites·12 claims
- 4047US10216456B2Estimating mount time completion in file systemsIBM·Filed 2016·Granted Feb 26, 2019·0 cites·17 claims
- 4147US9536558B2Erasing recorded data by utilizing read head and write headIBM·Filed 2016·Granted Jan 3, 2017·0 cites·8 claims
- 4245US9720615B2Writing data to sequential storage mediumIBM·Filed 2015·Granted Aug 1, 2017·0 cites·12 claims
- 4345US9330708B2Erasing recorded data by utilizing read head and write headIBM·Filed 2015·Granted May 3, 2016·0 cites·4 claims
- 4445US2015149415A1Rollback Mechanism for Linear Tape File SystemsIBM·Filed 2013·Application pending·0 cites
- 4545US2024087605A1Header encoding mechanism for tape storageIBM·Filed 2022·Application pending·0 cites
- 4644US9996459B2Reclaiming of sequential storage mediumIBM·Filed 2015·Granted Jun 12, 2018·0 cites·15 claims
- 4738US2017052705A1Listing storage mediaIBM·Filed 2015·Application pending·0 cites
- 4836US2017344570A1Linear tape file system selective file and directory tape mountingIBM·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →