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.
Join the waitlist — get patent alerts
Get an alert when Petrus Antonius Van Der Heijden files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →