Inventor · disambiguated record
Petrus Antonius Van Der Heijden
Also filed as: VAN DER HEIJDEN PETRUS · VAN DER HEIJDEN PETRUS A · VAN DER HEIJDEN PETRUS ANTONIU · VAN DER HEIJDEN PETRUS ANTONIUS
67 granted patents·7 pending applications·901 citations·filing 2000–2025
99Inventor score
Files withWESTERN DIGITAL TECH INC35SEAGATE TECHNOLOGY LLC13HGST Netherlands BV12FRANCA-NETO LUIZ M3BONHOTE CHRISTIAN RENE2
Top patents by PatentIndex Score
74 records- 0198US11900971B1Magnetic recording head with assisting electric current in trailing shieldWESTERN DIGITAL TECH INC·Filed 2022·Granted Feb 13, 2024·10 cites·19 claims
- 0298US11881237B1Cross track current design for energy assisted magnetic recordingWESTERN DIGITAL TECH INC·Filed 2021·Granted Jan 23, 2024·9 cites·20 claims
- 0398US11869548B1Magnetic recording devices having external alternating current sourcesWESTERN DIGITAL TECH INC·Filed 2021·Granted Jan 9, 2024·9 cites·24 claims
- 0498US11508401B1Magnetic recording devices having cross-track current flow to facilitate downtrack magnetic field enhancementsWESTERN DIGITAL TECH INC·Filed 2021·Granted Nov 22, 2022·13 cites·21 claims
- 0597US10861485B1Write heads configured to redirect currentWESTERN DIGITAL TECH INC·Filed 2020·Granted Dec 8, 2020·8 cites·16 claims
- 0697US9947347B1Magnetic sensor using inverse spin hall effectWESTERN DIGITAL TECH INC·Filed 2016·Granted Apr 17, 2018·34 cites·28 claims
- 0797US7894159B2Perpendicular write head with independent trailing shield designsHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Feb 22, 2011·44 cites·6 claims
- 0897US6785092B2White head for high anisotropy mediaSEAGATE TECHNOLOGY LLC·Filed 2002·Granted Aug 31, 2004·134 cites·20 claims
- 0996US11894026B1Magnetic recording head having leads over the trailing shield for assisting electric currentsWESTERN DIGITAL TECH INC·Filed 2022·Granted Feb 6, 2024·6 cites·23 claims
- 1096US10762917B1Reversed mode spin torque oscillator with shaped field generation layerWESTERN DIGITAL TECH INC·Filed 2019·Granted Sep 1, 2020·20 cites·12 claims
- 1195US10777219B1Write heads configured to redirect currentWESTERN DIGITAL TECH INC·Filed 2019·Granted Sep 15, 2020·16 cites·20 claims
- 1295US10388305B1Apparatus and method for writing to magnetic media using an AC bias current to enhance the write fieldWESTERN DIGITAL TECH INC·Filed 2018·Granted Aug 20, 2019·18 cites·20 claims
- 1395US9076468B1Scissor magnetic read sensor with shape enhanced soft magnetic side shield for improved stabilityHGST Netherlands BV·Filed 2014·Granted Jul 7, 2015·34 cites·22 claims
- 1495US8749926B1Scissor magnetic read head with wrap-around magnetic shieldHGST Netherlands BV·Filed 2012·Granted Jun 10, 2014·36 cites·23 claims
- 1595US8411390B2Integrated half coil structure for write assist of high coercivity mediaFRANCA-NETO LUIZ M·Filed 2009·Granted Apr 2, 2013·23 cites·23 claims
- 1695US7212367B2Ampere wire write head with confined magnetic fieldsSEAGATE TECHNOLOGY LLC·Filed 2004·Granted May 1, 2007·56 cites·30 claims
- 1795US6519119B1Structure for current perrpendicular to plane giant magnetoresistive read headsSEAGATE TECHNOLOGY LLC·Filed 2000·Granted Feb 11, 2003·49 cites·14 claims
- 1894US7467461B2Additive gap process to define trailing and side shield gap for a perpendicular write headHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Dec 23, 2008·18 cites·23 claims
- 1993US10839844B1Current-assisted magnetic recording write head with wide conductive element in the write gapWESTERN DIGITAL TECH INC·Filed 2019·Granted Nov 17, 2020·12 cites·20 claims
- 2093US8035922B2Write head with integrated coil and shield structureHITACHI GLOBAL STORAGE TECH NL·Filed 2008·Granted Oct 11, 2011·15 cites·25 claims
- 2193US6724583B2Adjustable permanent magnet biasSEAGATE TECHNOLOGY LLC·Filed 2001·Granted Apr 20, 2004·44 cites·19 claims
- 2292US11854584B1Current assisted HAMR magnetic writerWESTERN DIGITAL TECH INC·Filed 2022·Granted Dec 26, 2023·3 cites·20 claims
- 2392US6813115B2Perpendicular magnetic recording head with improved write field gradientSEAGATE TECHNOLOGY LLC·Filed 2002·Granted Nov 2, 2004·49 cites·20 claims
- 2491US11651791B2Heat-assisted magnetic recording (HAMR) head with tapered main pole and heat sink material adjacent the poleWESTERN DIGITAL TECH INC·Filed 2022·Granted May 16, 2023·2 cites·19 claims
- 2591US7149055B2Inductive write head driven only by an ampere wireSEAGATE TECHNOLOGY LLC·Filed 2003·Granted Dec 12, 2006·28 cites·21 claims
- 2691US6728065B2Single pole magnetic recording head for perpendicular magnetic recordingSEAGATE TECHNOLOGY LLC·Filed 2002·Granted Apr 27, 2004·41 cites·26 claims
- 2790US9099119B2Magnetic read sensor using spin hall effectHGST Netherlands BV·Filed 2013·Granted Aug 4, 2015·12 cites·10 claims
- 2888US11437060B2MAMR stack shape optimization for magnetic recordingWESTERN DIGITAL TECH INC·Filed 2020·Granted Sep 6, 2022·2 cites·21 claims
- 2988US7099121B2Perpendicular magnetic recording head having a reduced field under the return pole and minimal eddy current lossesSEAGATE TECHNOLOGY LLC·Filed 2003·Granted Aug 29, 2006·25 cites·18 claims
- 3087US12315538B2Magnetic recording head with assisting electric current in trailing shieldWESTERN DIGITAL TECH INC·Filed 2024·Granted May 27, 2025·1 cites·23 claims
- 3186US10839832B1MAMR recording head with high damping trailing shield seed layerWESTERN DIGITAL TECH INC·Filed 2019·Granted Nov 17, 2020·5 cites·20 claims
- 3286US9153258B2Scissor magnetic read sensor with novel multi-layer bias structure for uniform free layer biasingHGST Netherlands BV·Filed 2013·Granted Oct 6, 2015·8 cites·14 claims
- 3385US10643642B2Apparatus and method for writing to magnetic media using an AC bias current to enhance the write fieldWESTERN DIGITAL TECH INC·Filed 2019·Granted May 5, 2020·5 cites·23 claims
- 3485US6807032B1Magnetic read head wherein the shields are used as electrical leads and have a minimized anisotropic magneto-resistance effectSEAGATE TECHNOLOGY LLC·Filed 2001·Granted Oct 19, 2004·20 cites·14 claims
- 3585US6654209B2Low resistance lead structure for a low resistance magnetic read headSEAGATE TECHNOLOGY LLC·Filed 2001·Granted Nov 25, 2003·20 cites·22 claims
- 3684US10872626B2MAMR stack shape optimization for magnetic recordingWESTERN DIGITAL TECH INC·Filed 2019·Granted Dec 22, 2020·4 cites·30 claims
- 3784US9805753B2Enhanced write pole and return pole for improved areal densityHGST Netherlands BV·Filed 2016·Granted Oct 31, 2017·5 cites·15 claims
- 3884US8587900B2Radiator-cooled nanowire-based write assistFRANCA-NETO LUIZ M·Filed 2011·Granted Nov 19, 2013·8 cites·24 claims
- 3983US11043233B2Magnetic write head with dual return pole and tapered main poleWESTERN DIGITAL TECH INC·Filed 2020·Granted Jun 22, 2021·2 cites·24 claims
- 4083US9099122B2Scissor sensor with back edge bias structure and novel dielectric layerHGST Netherlands BV·Filed 2013·Granted Aug 4, 2015·7 cites·9 claims
- 4183US8634162B2Perpendicular write head having a stepped flare structure and method of manufacture thereofBONHOTE CHRISTIAN RENE·Filed 2007·Granted Jan 21, 2014·4 cites·14 claims
- 4282US10706877B2Spin torque layer in side gap for improved field and cross track field gradientWESTERN DIGITAL TECH INC·Filed 2019·Granted Jul 7, 2020·4 cites·20 claims
- 4381US8638527B2Signaling method and apparatus for write assist of high coercivity media using integrated half coilFRANCA-NETO LUIZ M·Filed 2009·Granted Jan 28, 2014·4 cites·22 claims
- 4481US2025273235A1Magnetic Recording Head With Assisting Electric Current In Trailing ShieldWESTERN DIGITAL TECH INC·Filed 2025·Application pending·0 cites
- 4580US6798623B2Biased CPP sensor using spin-momentum transferSEAGATE TECHNOLOGY LLC·Filed 2001·Granted Sep 28, 2004·13 cites·40 claims
- 4678US9429633B2Magnetic sensor utilizing rashba effect in a two-dimensional conductorHGST Netherlands BV·Filed 2013·Granted Aug 30, 2016·3 cites·15 claims
- 4776US10943616B2Current-assisted magnetic recording write head with wide conductive element in the write gapWESTERN DIGITAL TECH INC·Filed 2020·Granted Mar 9, 2021·1 cites·20 claims
- 4875US10468058B1Magnetic write head with a tapered return poleWESTERN DIGITAL TECH INC·Filed 2018·Granted Nov 5, 2019·3 cites·24 claims
- 4973US9953675B2Enhanced write pole and return pole for improved areal densityWESTERN DIGITAL TECH INC·Filed 2017·Granted Apr 24, 2018·2 cites·18 claims
- 5072US12249358B2Magnetic recording devices having external alternating current sourcesWESTERN DIGITAL TECH INC·Filed 2023·Granted Mar 11, 2025·0 cites·22 claims
Showing the top 50 of 74 patent records by PatentIndex Score.
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