Assignee
HEADWAY TECH INC
US·211 granted patents·30 pending applications·1,772 citations·filing 2012–2025
Top patents by PatentIndex Score
241 records- 0199US10043851B1Etch selectivity by introducing oxidants to noble gas during physical magnetic tunnel junction (MTJ) etchingHEADWAY TECH INC·Filed 2017·Granted Aug 7, 2018·66 cites·20 claims
- 0299US9490054B2Seed layer for multilayer magnetic materialsHEADWAY TECH INC·Filed 2012·Granted Nov 8, 2016·53 cites·13 claims
- 0398US11568891B1Magnetic flux guiding device with spin torque oscillator (STO) film having negative spin polarization layers in assisted writing applicationHEADWAY TECH INC·Filed 2021·Granted Jan 31, 2023·18 cites·19 claims
- 0498US11152021B1Perpendicular magnetic recording (PMR) writer with tunable pole protrusion (TPP) designs for 2 terabytes/platter (TB/P) and beyondHEADWAY TECH INC·Filed 2020·Granted Oct 19, 2021·15 cites·15 claims
- 0598US10937450B1Magnetic flux guiding device with spin torque oscillator (STO) film having one or more negative spin polarization layers in assisted writing applicationHEADWAY TECH INC·Filed 2020·Granted Mar 2, 2021·23 cites·27 claims
- 0698US10325618B1Perpendicular magnetic recording (PMR) writer with one or more spin flipping elements in the gapHEADWAY TECH INC·Filed 2018·Granted Jun 18, 2019·127 cites·23 claims
- 0798US10069064B1Memory structure having a magnetic tunnel junction (MTJ) self-aligned to a T-shaped bottom electrode, and method of manufacturing the sameHEADWAY TECH INC·Filed 2017·Granted Sep 4, 2018·59 cites·24 claims
- 0898US10014465B1Maintaining coercive field after high temperature anneal for magnetic device applications with perpendicular magnetic anisotropyHEADWAY TECH INC·Filed 2017·Granted Jul 3, 2018·22 cites·13 claims
- 0998US9966529B1MgO insertion into free layer for magnetic memory applicationsHEADWAY TECH INC·Filed 2017·Granted May 8, 2018·19 cites·13 claims
- 1098US9780299B2Multilayer structure for reducing film roughness in magnetic devicesHEADWAY TECH INC·Filed 2015·Granted Oct 3, 2017·11 cites·19 claims
- 1198US9508364B1Perpendicular magnetic recording (PMR) writer with hybrid shield layersHEADWAY TECH INC·Filed 2015·Granted Nov 29, 2016·58 cites·12 claims
- 1298US9472752B2High thermal stability reference structure with out-of-plane anisotropy for magnetic device applicationsHEADWAY TECH INC·Filed 2014·Granted Oct 18, 2016·30 cites·10 claims
- 1398US9466319B1Perpendicular magnetic recording (PMR) write shield design with minimized wide adjacent track erasure (WATE)HEADWAY TECH INC·Filed 2015·Granted Oct 11, 2016·87 cites·24 claims
- 1498US9466789B2Method of making a high thermal stability reference structure with out-of-plane anisotropy for magnetic device applicationsHEADWAY TECH INC·Filed 2014·Granted Oct 11, 2016·53 cites·19 claims
- 1597US10203379B2GMR biosensor with enhanced sensitivityHEADWAY TECH INC·Filed 2016·Granted Feb 12, 2019·12 cites·4 claims
- 1697US10032469B2Perpendicular magnetic recording (PMR) writer with improved trailing shield designHEADWAY TECH INC·Filed 2015·Granted Jul 24, 2018·37 cites·7 claims
- 1797US9966091B2MgO based perpendicular spin polarizer in microwave assisted magnetic recording (MAMR) applicationsHEADWAY TECH INC·Filed 2016·Granted May 8, 2018·34 cites·11 claims
- 1897US9852752B1Plasmon generator with metallic waveguide blocker for TAMRHEADWAY TECH INC·Filed 2016·Granted Dec 26, 2017·45 cites·12 claims
- 1997US9626990B2Perpendicular magnetic recording (PMR) writer with hybrid shield layersHEADWAY TECH INC·Filed 2016·Granted Apr 18, 2017·27 cites·18 claims
- 2097US9406317B1Perpendicular magnetic recording (PMR) write head with improved shapes of side shield and main poleHEADWAY TECH INC·Filed 2015·Granted Aug 2, 2016·53 cites·8 claims
- 2196US11380355B2Adaptive bias control for magnetic recording headHEADWAY TECH INC·Filed 2020·Granted Jul 5, 2022·7 cites·10 claims
- 2296US11043232B1Spin torque reversal assisted magnetic recording (STRAMR) device having a width substantially equal to that of a traililng shieldHEADWAY TECH INC·Filed 2020·Granted Jun 22, 2021·13 cites·29 claims
- 2396US10193062B2MgO insertion into free layer for magnetic memory applicationsHEADWAY TECH INC·Filed 2018·Granted Jan 29, 2019·7 cites·37 claims
- 2496US10014021B1Perpendicular magnetic recording (PMR) write head with patterned leading shieldHEADWAY TECH INC·Filed 2017·Granted Jul 3, 2018·28 cites·35 claims
- 2596US9425387B1Magnetic element with perpendicular magnetic anisotropy for high coercivity after high temperature annealingHEADWAY TECH INC·Filed 2015·Granted Aug 23, 2016·59 cites·31 claims
- 2695US11875825B1Perpendicular magnetic recording writer with double driving coilHEADWAY TECH INC·Filed 2022·Granted Jan 16, 2024·6 cites·20 claims
- 2795US10714129B1Writer with recessed spin flipping element in the main pole surrounding gapHEADWAY TECH INC·Filed 2019·Granted Jul 14, 2020·26 cites·14 claims
- 2895US10580441B1Magnetic recording assisted by two spin hall effect (SHE) layers in the write gapHEADWAY TECH INC·Filed 2019·Granted Mar 3, 2020·26 cites·41 claims
- 2995US10522174B1Magnetic flux guiding device with antiferromagnetically coupled (AFC) spin polarizer in assisted writing applicationHEADWAY TECH INC·Filed 2019·Granted Dec 31, 2019·22 cites·16 claims
- 3095US10446178B1Writer with recessed spin flipping element in the write gapHEADWAY TECH INC·Filed 2018·Granted Oct 15, 2019·23 cites·20 claims
- 3195US10366713B1Designs for multiple perpendicular magnetic recording (PMR) writers and related head gimbal assembly (HGA) processHEADWAY TECH INC·Filed 2018·Granted Jul 30, 2019·7 cites·22 claims
- 3295US10134981B1Free layer sidewall oxidation and spacer assisted magnetic tunnel junction (MTJ) etch for high performance magnetoresistive random access memory (MRAM) devicesHEADWAY TECH INC·Filed 2017·Granted Nov 20, 2018·15 cites·25 claims
- 3395US9935261B1Dielectric encapsulation layer for magnetic tunnel junction (MTJ) devices using radio frequency (RF) sputteringHEADWAY TECH INC·Filed 2017·Granted Apr 3, 2018·14 cites·24 claims
- 3495US9842988B2Magnetic tunnel junction with low defect rate after high temperature anneal for magnetic device applicationsHEADWAY TECH INC·Filed 2015·Granted Dec 12, 2017·6 cites·11 claims
- 3595US9754612B2Areal density improvement of perpendicular magnetic recording (PMR) write head by tuning magnetic flux loopsHEADWAY TECH INC·Filed 2015·Granted Sep 5, 2017·18 cites·6 claims
- 3695US9673385B1Seed layer for growth of <111> magnetic materialsHEADWAY TECH INC·Filed 2016·Granted Jun 6, 2017·7 cites·25 claims
- 3794US11295768B1Writer with laterally graded spin layer MsTHEADWAY TECH INC·Filed 2020·Granted Apr 5, 2022·3 cites·16 claims
- 3894US10714132B1Magnetic flux guiding devices all around main pole design without leading shield and side shields in assisted writing applicationsHEADWAY TECH INC·Filed 2019·Granted Jul 14, 2020·19 cites·13 claims
- 3994US10714127B1Shape designs of magnetic flux guiding devices all around the main pole in assisted writing applicationsHEADWAY TECH INC·Filed 2019·Granted Jul 14, 2020·16 cites·12 claims
- 4094US9972777B1MTJ device process/integration method with pre-patterned seed layerHEADWAY TECH INC·Filed 2017·Granted May 15, 2018·11 cites·18 claims
- 4194US9608200B2Hybrid metallic hard mask stack for MTJ etchingHEADWAY TECH INC·Filed 2015·Granted Mar 28, 2017·12 cites·6 claims
- 4294US9455400B2Magnetic tunnel junction for MRAM applicationsHEADWAY TECH INC·Filed 2015·Granted Sep 27, 2016·13 cites·6 claims
- 4393US10770104B1Alternative designs for magnetic recording assisted by a single spin hall effect (SHE) layer in the write gapHEADWAY TECH INC·Filed 2019·Granted Sep 8, 2020·13 cites·14 claims
- 4493US10559318B1Magnetic recording assisted by a single spin hall effect (SHE) layer in the write gapHEADWAY TECH INC·Filed 2019·Granted Feb 11, 2020·17 cites·38 claims
- 4593US9805816B2Implementation of a one time programmable memory using a MRAM stack designHEADWAY TECH INC·Filed 2016·Granted Oct 31, 2017·15 cites·52 claims
- 4693US9799357B1Magnetic reader sensor with shield spacing improvement and better pin flop robustnessHEADWAY TECH INC·Filed 2016·Granted Oct 24, 2017·14 cites·17 claims
- 4793US9697855B1Perpendicular magnetic recording (PMR) write head with multiple layer trailing shieldHEADWAY TECH INC·Filed 2016·Granted Jul 4, 2017·18 cites·27 claims
- 4892US12094497B1Optimizing a current distribution in write heads for efficient energy-assisted magnetic recordingHEADWAY TECH INC·Filed 2023·Granted Sep 17, 2024·3 cites·20 claims
- 4992US11205447B2Reader noise reduction using spin hall effectsHEADWAY TECH INC·Filed 2019·Granted Dec 21, 2021·10 cites·11 claims
- 5092US10950782B2Nitride diffusion barrier structure for spintronic applicationsHEADWAY TECH INC·Filed 2019·Granted Mar 16, 2021·4 cites·17 claims
Showing the top 50 of 241 patent records by PatentIndex Score.
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