Inventor · disambiguated record
Gaku Koizumi
Also filed as: KOIZUMI GAKU
23 granted patents·3 pending applications·197 citations·filing 2009–2023
94Inventor score
Technology areasG11B
Top patents by PatentIndex Score
26 records- 0198US10276193B2Magnetic head having magnetic pole and shield, and magnetic recording and reproducing deviceTOSHIBA KK·Filed 2018·Granted Apr 30, 2019·83 cites·18 claims
- 0293US9792933B2Magnetic head, disk drive with the same and method of manufacturing magnetic headTOSHIBA KK·Filed 2015·Granted Oct 17, 2017·16 cites·6 claims
- 0392US10546600B1Magnetic head with high-frequency oscillating element and disk device comprising the sameTOSHIBA KK·Filed 2018·Granted Jan 28, 2020·15 cites·12 claims
- 0491US8159781B2Magnetic head for perpendicular recording and disk drive with the sameTAGUCHI TOMOKO·Filed 2010·Granted Apr 17, 2012·17 cites·20 claims
- 0590US8810954B1Disk storage apparatus, write control apparatus and write control methodTOSHIBA KK·Filed 2013·Granted Aug 19, 2014·14 cites·10 claims
- 0688US8896947B2Disk storage apparatus and method for determining malfunction of high-frequency oscillating elementTOSHIBA KK·Filed 2013·Granted Nov 25, 2014·10 cites·20 claims
- 0787US10014009B1Magnetic disk drive and recording head control methodTOSHIBA KK·Filed 2018·Granted Jul 3, 2018·9 cites·8 claims
- 0886US10529365B2Method for correcting position offset of the heads on two dimensional magnetic recording deviceTOSHIBA KK·Filed 2018·Granted Jan 7, 2020·7 cites·20 claims
- 0981US10504543B1Magnetic disk deviceTOSHIBA KK·Filed 2019·Granted Dec 10, 2019·5 cites·20 claims
- 1080US8228627B2Magnetic disk driveKOIZUMI GAKU·Filed 2009·Granted Jul 24, 2012·5 cites·7 claims
- 1179US9305584B2Determining oscillation characteristic for high-frequency assisted magnetic recording deviceTOSHIBA KK·Filed 2015·Granted Apr 5, 2016·5 cites·18 claims
- 1278US10867624B1Magnetic head and disk device with heat actuatorsTOSHIBA KK·Filed 2019·Granted Dec 15, 2020·4 cites·12 claims
- 1377US10403308B2Magnetic disk device which controls a recording operation and a non-recording operation of a recording head and a recording head control method of the magnetic disk deviceTOSHIBA KK·Filed 2018·Granted Sep 3, 2019·4 cites·8 claims
- 1471US10657990B2Magnetic head and disk device having gap layers with different magnetic relative permeabilitiesTOSHIBA KK·Filed 2018·Granted May 19, 2020·2 cites·10 claims
- 1562US10741201B2Magnetic recording device capable of stabilizing oscillations of high frequency assisted elementTOSHIBA KK·Filed 2019·Granted Aug 11, 2020·1 cites·16 claims
- 1662US2023127221A1Magnetic disk deviceTOSHIBA KK·Filed 2022·Application pending·0 cites
- 1757US2022036923A1Magnetic disk deviceTOSHIBA KK·Filed 2021·Application pending·0 cites
- 1855US12027187B2Magnetic disk deviceTOSHIBA KK·Filed 2023·Granted Jul 2, 2024·0 cites·9 claims
- 1954US2020243108A1Magnetic head and disk device having the sameTOSHIBA KK·Filed 2020·Application pending·0 cites
- 2050US11626132B2Magnetic disk deviceTOSHIBA KK·Filed 2021·Granted Apr 11, 2023·0 cites·4 claims
- 2148US11817135B2Magnetic head and magnetic recording/reproducing deviceTOSHIBA KK·Filed 2022·Granted Nov 14, 2023·0 cites·10 claims
- 2246US10825473B2Magnetic disk deviceTOSHIBA KK·Filed 2019·Granted Nov 3, 2020·0 cites·16 claims
- 2344US10360931B2Magnetic recording apparatusTOSHIBA KK·Filed 2018·Granted Jul 23, 2019·0 cites·19 claims
- 2443US11404084B2Magnetic disk deviceTOSHIBA KK·Filed 2021·Granted Aug 2, 2022·0 cites·9 claims
- 2541US8885296B2Current drive type magnetic head and disk drive with the sameKOIZUMI GAKU·Filed 2011·Granted Nov 11, 2014·0 cites·16 claims
- 2639US11176965B2Magnetic disk deviceTOSHIBA KK·Filed 2020·Granted Nov 16, 2021·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →