Inventor · disambiguated record
Drew Michael Mader
Also filed as: MADER DREW M · MADER DREW MICHAEL
23 granted patents·149 citations·filing 2015–2022
94Inventor score
Top patents by PatentIndex Score
23 records- 0198US9916849B1Method and apparatus for detecting and remediating in response to insufficient or excessive HAMR optical powerSEAGATE TECHNOLOGY LLC·Filed 2016·Granted Mar 13, 2018·53 cites·19 claims
- 0296US9236081B1Laser temperature calibration in a HAMR deviceSEAGATE TECHNOLOGY LLC·Filed 2015·Granted Jan 12, 2016·31 cites·20 claims
- 0390US9311951B1Laser adjustment during field operation of a heat-assisted magnetic recording data storage deviceSEAGATE TECHNOLOGY LLC·Filed 2015·Granted Apr 12, 2016·10 cites·20 claims
- 0488US10643651B1Determining instability zones of a laser of a heat-assisted magnetic recording headSEAGATE TECHNOLOGY LLC·Filed 2018·Granted May 5, 2020·4 cites·19 claims
- 0585US9589587B1Laser adjustment during field operation of a heat-assisted magnetic recording data storage deviceSEAGATE TECHNOLOGY LLC·Filed 2016·Granted Mar 7, 2017·6 cites·20 claims
- 0683US9548068B1Determining optical degradation in a heat-assisted read/write headSEAGATE TECHNOLOGY LLC·Filed 2015·Granted Jan 17, 2017·6 cites·18 claims
- 0782US10339963B1Determining thermal gradient of a HAMR hotspot using pseudo-random bit sequences recorded at a stepped laser powerSEAGATE TECHNOLOGY LLC·Filed 2018·Granted Jul 2, 2019·5 cites·20 claims
- 0882US9842621B1Heat-assisted magnetic recording apparatus capable of detecting optical power change based on one or more of phase errors and dibit responseSEAGATE TECHNOLOGY LLC·Filed 2016·Granted Dec 12, 2017·5 cites·20 claims
- 0981US10515658B1Laser calibration using temperature compensation equation for heat-assisted magnetic recording deviceSEAGATE TECH LL·Filed 2018·Granted Dec 24, 2019·6 cites·20 claims
- 1080US9202506B1Current boost profile applied to laser during heat-assisted magnetic recordingSEAGATE TECHNOLOGY LLC·Filed 2015·Granted Dec 1, 2015·5 cites·20 claims
- 1179US10127930B1In-field laser calibration for heat-assisted magnetic recording head using temperature compensation equationSEAGATE TECHNOLOGY LLC·Filed 2018·Granted Nov 13, 2018·4 cites·20 claims
- 1279US9837118B1Determining thermal gradient of heat-assisted magnetic recording hotspot based on timing errorsSEAGATE TECHNOLOGY LLC·Filed 2017·Granted Dec 5, 2017·4 cites·20 claims
- 1374US10665254B1Readback waveform oversampling method and apparatusSEAGATE TECHNOLOGY LLC·Filed 2019·Granted May 26, 2020·2 cites·11 claims
- 1474US9349415B1Qualifying a recording head based on symmetry of a cross-track profileSEAGATE TECHNOLOGY LLC·Filed 2015·Granted May 24, 2016·3 cites·20 claims
- 1571US10770106B1System and method using on-ramp heating to detect laser mode hopping in heat assisted recordingSEAGATE TECHNOLOGY LLC·Filed 2019·Granted Sep 8, 2020·3 cites·21 claims
- 1663US10395673B1In-field laser calibration for heat-assisted magnetic recording head using temperature compensation equationSEAGATE TECHNOLOGY LLC·Filed 2018·Granted Aug 27, 2019·1 cites·20 claims
- 1761US11881239B1Determining fly height using readback signal distortionSEAGATE TECHNOLOGY LLC·Filed 2022·Granted Jan 23, 2024·0 cites·19 claims
- 1861US11011189B2Readback waveform oversampling method and apparatusSEAGATE TECHNOLOGY LLC·Filed 2020·Granted May 18, 2021·0 cites·20 claims
- 1961US9830942B1Obtaining a predetermined phase shift in data using different write precompensation associated with different NRZI patternsSEAGATE TECHNOLOGY LLC·Filed 2016·Granted Nov 28, 2017·1 cites·18 claims
- 2054US10832704B2Laser calibration using temperature compensation equation for heat-assisted magnetic recording deviceSEAGATE TECHNOLOGY LLC·Filed 2019·Granted Nov 10, 2020·0 cites·20 claims
- 2151US11908502B2Partial pulse pairing for improved read signal qualitySEAGATE TECHNOLOGY LLC·Filed 2022·Granted Feb 20, 2024·0 cites·20 claims
- 2243US10083716B1Laser calibration for heat-assisted magnetic recording head using interleaved laser currentSEAGATE TECHNOLOGY LLC·Filed 2017·Granted Sep 25, 2018·0 cites·20 claims
- 2341US9990950B1Calibration and adjusting target pre-write clearance offset for a heat-assisted magnetic recording deviceSEAGATE TECHNOLOGY LLC·Filed 2017·Granted Jun 5, 2018·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →