Inventor · disambiguated record
Douglas Johnson Werner
Also filed as: WERNER DOUGLAS · WERNER DOUGLAS J · WERNER DOUGLAS JOHNSON
38 granted patents·1 pending application·696 citations·filing 1993–2013
98Inventor score
Files withIBM24HITACHI GLOBAL STORAGE TECH8HGST Netherlands BV2HITACHI GLOBAL STORAGE TECH NL2DU HONG1
Top patents by PatentIndex Score
39 records- 0196US6219212B1Magnetic tunnel junction head structure with insulating antiferromagnetic layerIBM·Filed 1998·Granted Apr 17, 2001·145 cites·35 claims
- 0296US5805391AWrite head with recessed stitched yoke on a planar portion of an insulation layer defining zero throat heightIBM·Filed 1996·Granted Sep 8, 1998·124 cites·33 claims
- 0390US5696656AHighly sensitive orthogonal spin valve read headIBM·Filed 1996·Granted Dec 9, 1997·54 cites·13 claims
- 0489US6786803B2Onboard multiphase electronic lapping guide design for MR headsIBM·Filed 2002·Granted Sep 7, 2004·31 cites·30 claims
- 0587US6504689B1Tunnel junction read head with flux guide coupled to and magnetically extending a recessed free layer to an air bearing surfaceIBM·Filed 2000·Granted Jan 7, 2003·21 cites·46 claims
- 0686US5828530AOrthogonal spin valve sensor with reduced net fieldIBM·Filed 1997·Granted Oct 27, 1998·41 cites·11 claims
- 0785US6861177B2Method of forming a read sensor using a lift-off mask having a hardmask layer and a release layerHITACHI GLOBAL STORAGE TECH·Filed 2002·Granted Mar 1, 2005·19 cites·15 claims
- 0883US6628484B2Planar gap pre-fill process for read headsIBM·Filed 2001·Granted Sep 30, 2003·15 cites·20 claims
- 0983US6029339AMethod of making write head with recessed stitched yoke on a planar portion of an insulation layer defining zero throat heightIBM·Filed 1998·Granted Feb 29, 2000·34 cites·27 claims
- 1081US5557491ATwo terminal single stripe orthogonal MR head having biasing conductor integral with the lead layersIBM·Filed 1994·Granted Sep 17, 1996·25 cites·35 claims
- 1176US6570743B1Read head with high and low resistance lead layers wherein the high resistance lead layers are connected to a read sensor and extend perpendicular from an air bearing surface (abs) of the read head beyond a back recessed edge of the sensor where the high resistance lead layers are connected to the low resistance layersIBM·Filed 2000·Granted May 27, 2003·10 cites·10 claims
- 1275US5653013ATwo terminal single stripe orthogonal MR headIBM·Filed 1995·Granted Aug 5, 1997·30 cites·34 claims
- 1374US5486968AMethod and apparatus for simultaneous write head planarization and lead routingIBM·Filed 1993·Granted Jan 23, 1996·19 cites·51 claims
- 1472US7563381B2High milling resistance write pole fabrication method for perpendicular recordingHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Jul 21, 2009·8 cites·19 claims
- 1568US7919231B2Photolithographic method and mask devices utilized for multiple exposures in the field of a featureHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Apr 5, 2011·2 cites·29 claims
- 1667US7555828B2Method for manufacturing a read sensor for a magnetoresistive headHITACHI GLOBAL STORAGE TECH·Filed 2002·Granted Jul 7, 2009·6 cites·24 claims
- 1767US7297470B2Image transfer process for thin film component definitionHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Nov 20, 2007·6 cites·19 claims
- 1867US5761013AApparatus for simultaneous write head planarization and lead routingIBM·Filed 1995·Granted Jun 2, 1998·17 cites·14 claims
- 1965US7152305B2Method for fabricating a magnetoresistive (MR) read headHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Dec 26, 2006·4 cites·26 claims
- 2063US6085406AMethod of making a read head with improved lead layers at an air bearing surfaceIBM·Filed 1998·Granted Jul 11, 2000·14 cites·17 claims
- 2162US5604073AAzo dyes as adhesion promotion additive in polydimethylglutarimideIBM·Filed 1995·Granted Feb 18, 1997·19 cites·7 claims
- 2261US7204014B2Magnetic head with thin gap layersIBM·Filed 2003·Granted Apr 17, 2007·3 cites·7 claims
- 2360US9236069B2Method for making a current-perpendicular-to-the-plane (CPP) magnetoresistive (MR) sensor with reduced-width self-aligned top electrodeHGST Netherlands BV·Filed 2013·Granted Jan 12, 2016·1 cites·13 claims
- 2459US5894385AHighly sensitive magnetoresistive sensor with a series flux guideIBM·Filed 1997·Granted Apr 13, 1999·13 cites·9 claims
- 2558US7465532B2Image transfer process for thin film component definitionHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Dec 16, 2008·0 cites·19 claims
- 2658US6913870B2Fabrication process using a thin liftoff stencil formed by an image transfer processIBM·Filed 2002·Granted Jul 5, 2005·3 cites·20 claims
- 2758US6176005B1Method of making read head with improved lead layersIBM·Filed 1998·Granted Jan 23, 2001·11 cites·15 claims
- 2855US5581427APeak enhanced magnetoresistive read transducerIBM·Filed 1994·Granted Dec 3, 1996·10 cites·14 claims
- 2954US7531907B2System and method for forming serial numbers on HDD wafersHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted May 12, 2009·1 cites·2 claims
- 3052US7974047B2Current perpendicular to plane differential magnetoresistance read head design using a current confinement structure proximal to an air bearing surfaceHITACHI GLOBAL STORAGE TECH NL·Filed 2008·Granted Jul 5, 2011·0 cites·24 claims
- 3152US6707647B2Magnetic head with thin gap layersIBM·Filed 2001·Granted Mar 16, 2004·1 cites·26 claims
- 3251US6430011B1Read head with improved lead layers at an air bearing surfaceIBM·Filed 2000·Granted Aug 6, 2002·1 cites·12 claims
- 3351US2011026169A1Dual cpp gmr head using a scissor sensorGILL HARDAYAL SINGH·Filed 2009·Application pending·0 cites
- 3448US7532441B2MR read head with first and second gap layersHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted May 12, 2009·0 cites·18 claims
- 3546US8988833B2Current-perpendicular-to-the-plane (CPP) magnetoresistive sensor with reduced-width top and bottom electrodes and method for makingHGST Netherlands BV·Filed 2013·Granted Mar 24, 2015·0 cites·5 claims
- 3645US6762011B2Deposition of a projection structure on a substrate using a negative mask and negative photoresistIBM·Filed 2002·Granted Jul 13, 2004·0 cites·18 claims
- 3744US8268517B2Photolithographic method and mask devices utilized for multiple exposures in the field of a featureGUTBERLET MARY KATHRYN·Filed 2011·Granted Sep 18, 2012·0 cites·13 claims
- 3843US5532109AAzo dyes as adhesion promotion additive in polydimethylglutarimideIBM·Filed 1995·Granted Jul 2, 1996·8 cites·9 claims
- 3938US8192900B2Advanced phase shift lithography and attenuated phase shift mask for narrow track width d write pole definitionDU HONG·Filed 2010·Granted Jun 5, 2012·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →