Inventor · disambiguated record
David J. Seagle
Also filed as: SEAGLE DAVID · SEAGLE DAVID J · SEAGLE DAVID JOHN
115 granted patents·10 pending applications·3,440 citations·filing 1994–2024
99Inventor score
Files withHGST Netherlands BV23IBM22WESTERN DIGITAL TECH INC19HITACHI GLOBAL STORAGE TECH15WESTERN DIGITAL FREMONT INC13
Top patents by PatentIndex Score
125 records- 0199US10832712B1Magnetic thin film recording head module having electrical shielding between read and write transducer arraysIBM·Filed 2020·Granted Nov 10, 2020·17 cites·22 claims
- 0299US7292409B1Magnetic head with thin trailing pedestal layerWESTERN DIGITAL FREMONT LLC·Filed 2004·Granted Nov 6, 2007·154 cites·38 claims
- 0399US7248449B1Magnetoresistive read sensor with reduced effective shield-to-shield spacingWESTERN DIGITAL FREMONT INC·Filed 2004·Granted Jul 24, 2007·162 cites·39 claims
- 0499US6987643B1Pole structure to relieve adjacent track writingWESTERN DIGITAL FREMONT INC·Filed 2001·Granted Jan 17, 2006·155 cites·8 claims
- 0598US10720570B2Magnetic sensor using spin hall effectWESTERN DIGITAL TECH INC·Filed 2017·Granted Jul 21, 2020·20 cites·25 claims
- 0698US7211339B1Highly conductive lead adjoining MR stripe and extending beyond stripe height at junctionWESTERN DIGITAL FREMONT INC·Filed 2002·Granted May 1, 2007·153 cites·10 claims
- 0798US7035046B1System and method for minimizing thermal pole tip protrusionWESTERN DIGITAL FREMONT INC·Filed 2002·Granted Apr 25, 2006·170 cites·36 claims
- 0898US6870712B2Inductive writer with flat top pole and pedestal defined zero throatWESTERN DIGITAL FREMONT INC·Filed 2001·Granted Mar 22, 2005·171 cites·6 claims
- 0998US6798616B1Write head architecture for improved manufacturabilityWESTERN DIGITAL FREMONT INC·Filed 2001·Granted Sep 28, 2004·154 cites·20 claims
- 1098US6754049B1Transducers for perpendicular recording with inductive cancellation at MR sensorWESTERN DIGITAL FREMONT INC·Filed 2001·Granted Jun 22, 2004·181 cites·20 claims
- 1197US7349179B1Write head for improved manufacturability larger write field and reduced adjacent track erasureWESTERN DIGITAL FREMONT LLC·Filed 2001·Granted Mar 25, 2008·152 cites·30 claims
- 1297US7307814B1Pedestal defined zero throat writer having a recessed pedestalWESTERN DIGITAL FREMONT LLC·Filed 2002·Granted Dec 11, 2007·149 cites·11 claims
- 1397US6674610B1Thin film write head with universal coil designWESTERN DIGITAL FREMONT INC·Filed 2000·Granted Jan 6, 2004·161 cites·20 claims
- 1496US7133253B1Pole tip with sides flared at media-facing surfaceWESTERN DIGITAL FREMONT INC·Filed 2002·Granted Nov 7, 2006·171 cites·28 claims
- 1596US6751055B1Inductive transducer with reduced pole tip protrusionWESTERN DIGITAL FREMONT INC·Filed 2002·Granted Jun 15, 2004·196 cites·16 claims
- 1695US9076468B1Scissor 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
- 1795US8804287B2Material for use in a TMR read gap without adversely affecting the TMR effectARAKI SATORU·Filed 2010·Granted Aug 12, 2014·16 cites·7 claims
- 1895US8749926B1Scissor magnetic read head with wrap-around magnetic shieldHGST Netherlands BV·Filed 2012·Granted Jun 10, 2014·36 cites·23 claims
- 1995US7116517B1Stitched pole write element with a T-shaped pole tip portionWESTERN DIGITAL FREMONT INC·Filed 2002·Granted Oct 3, 2006·161 cites·19 claims
- 2095US7054113B1Reader/writer for magnetic memoryWESTERN DIGITAL FREMONT INC·Filed 2001·Granted May 30, 2006·149 cites·20 claims
- 2194US6909578B1Method and system for reducing thermal pole tip protrusionWESTERN DIGITAL FREMONT INC·Filed 2002·Granted Jun 21, 2005·163 cites·32 claims
- 2293US11227628B1Recessed tape servo head to create an equipotential tape bearing surfaceWESTERN DIGITAL TECH INC·Filed 2021·Granted Jan 18, 2022·4 cites·20 claims
- 2393US8335053B2Integrated touch-down pad and touch-down sensorCHEN YINGJIAN·Filed 2010·Granted Dec 18, 2012·21 cites·25 claims
- 2493US7643250B2Pad slider design for on-slider ELGsHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Jan 5, 2010·40 cites·23 claims
- 2593US7446977B2Recording heads having electrical pads on multiple surfacesHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Nov 4, 2008·16 cites·25 claims
- 2691US7969687B2Magnetic head with delayed connection heater shuntingHITACHI GLOBAL STORAGE TECH NL·Filed 2008·Granted Jun 28, 2011·11 cites·20 claims
- 2791US7630177B2Tunnel MR head with closed-edge laminated free layerHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Dec 8, 2009·13 cites·10 claims
- 2890US12087336B1Tape heads having shifted array/pad arrangementsWESTERN DIGITAL TECH INC·Filed 2023·Granted Sep 10, 2024·3 cites·20 claims
- 2990US9378761B1System for adjusting bias of relative magnetizations of ferromagnetic layers in a magnetoresistive sensorHGST Netherlands BV·Filed 2015·Granted Jun 28, 2016·11 cites·17 claims
- 3090US8333898B2Method for manufacturing a magnetic tape head using a TMR sensorBROWN DIANE L·Filed 2010·Granted Dec 18, 2012·19 cites·21 claims
- 3190US7863911B2Test device and method for measurement of tunneling magnetoresistance properties of a manufacturable wafer by the current-in-plane-tunneling techniqueHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Jan 4, 2011·10 cites·20 claims
- 3289US11114117B1Process for manufacturing magnetic head having a servo read transducer structure with dielectric gap liner and a data read transducer structure with an embedded wear layer between thin and thick shield portionsIBM·Filed 2020·Granted Sep 7, 2021·3 cites·25 claims
- 3389US7567409B2Multilayer narrow pitch tape head arrayHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jul 28, 2009·9 cites·5 claims
- 3489US7545608B2Current-perpendicular-to-the-plane (CPP) magnetoresistive sensor with impedance adjustmentHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Jun 9, 2009·12 cites·16 claims
- 3589US5588199ALapping process for a single element magnetoresistive headIBM·Filed 1994·Granted Dec 31, 1996·47 cites·3 claims
- 3688US10902873B1Apparatus with multi-channel tape head module having controllable expansion elementsIBM·Filed 2019·Granted Jan 26, 2021·7 cites·20 claims
- 3788US8361541B2Fabrication of magnetoresistive sensors and electronic lapping guidesHGST Netherlands BV·Filed 2009·Granted Jan 29, 2013·8 cites·10 claims
- 3888US7564110B2Electrical lapping guides made from tunneling magnetoresistive (TMR) materialHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Jul 21, 2009·15 cites·11 claims
- 3988US6223420B1Method of making a read head with high resistance soft magnetic flux guide layer for enhancing read sensor efficiencyIBM·Filed 1998·Granted May 1, 2001·49 cites·21 claims
- 4086US12322424B23-band magnetic recording tape and tape driveWESTERN DIGITAL TECH INC·Filed 2023·Granted Jun 3, 2025·1 cites·23 claims
- 4186US11682421B2Tape head design having a null shield for same gap verifyWESTERN DIGITAL TECH INC·Filed 2021·Granted Jun 20, 2023·2 cites·23 claims
- 4286US9153258B2Scissor 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
- 4386US7961437B2Magnetic recording head having an extended stripe height and a shortened shield heightHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Jun 14, 2011·6 cites·24 claims
- 4485US11373683B2Data storage device using laterally offset read element to compensate for tape stretchWESTERN DIGITAL TECH INC·Filed 2021·Granted Jun 28, 2022·2 cites·26 claims
- 4584US8956201B2Correcting current crowding in row bar and vias for single pad bondingHGST Netherlands BV·Filed 2012·Granted Feb 17, 2015·7 cites·22 claims
- 4684US8116032B2Perpendicular magnetic recording system with auxiliary coil and circuitry for fast switching of write pole magnetizationCONTRERAS JOHN THOMAS·Filed 2009·Granted Feb 14, 2012·5 cites·16 claims
- 4784US7932717B2Test components fabricated with pseudo sensors used for determining the resistance of an MR sensorHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Apr 26, 2011·6 cites·7 claims
- 4883US9099122B2Scissor sensor with back edge bias structure and novel dielectric layerHGST Netherlands BV·Filed 2013·Granted Aug 4, 2015·7 cites·9 claims
- 4982US8472146B2Current perpendicular magnetoresistive sensor with a dummy shield for capacitance balancingBROWN DIANE L·Filed 2010·Granted Jun 25, 2013·6 cites·18 claims
- 5082US5875080AWrite head with second coil above pole having coil density less electrically connected first coil below the poleIBM·Filed 1997·Granted Feb 23, 1999·38 cites·60 claims
Showing the top 50 of 125 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →