Assignee
WESTERN DIGITAL FREMONT LLC
US·344 granted patents·19 pending applications·18,981 citations·filing 1996–2018
Top patents by PatentIndex Score
363 records- 0199US8792312B1Method and system for providing an energy assisted magnetic recording headWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted Jul 29, 2014·136 cites·9 claims
- 0299US8780505B1Method and system for providing a read transducer having an improved composite magnetic shieldWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted Jul 15, 2014·157 cites·23 claims
- 0399US8760818B1Systems and methods for providing magnetic storage elements with high magneto-resistance using heusler alloysWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted Jun 24, 2014·149 cites·13 claims
- 0499US8760822B1Method and system for providing a read transducer having an extended pinned layer and soft magnetic bias structures with improved stabilityWESTERN DIGITAL FREMONT LLC·Filed 2012·Granted Jun 24, 2014·139 cites·14 claims
- 0599US8638529B1Method and system for providing a magnetic read transducer having a bilayer magnetic seed layerWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted Jan 28, 2014·153 cites·14 claims
- 0699US8603593B1Method for providing an improved hard bias structureWESTERN DIGITAL FREMONT LLC·Filed 2012·Granted Dec 10, 2013·153 cites·13 claims
- 0799US8599657B1Method and system for providing energy assisted magnetic recording disk drive using a distributed feedback laserWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted Dec 3, 2013·150 cites·9 claims
- 0899US8537495B1Magnetic writer having a split yokeWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted Sep 17, 2013·153 cites·16 claims
- 0999US8531801B1Method and system for providing a read transducer having a composite magnetic shield with smooth interfacesWESTERN DIGITAL FREMONT LLC·Filed 2012·Granted Sep 10, 2013·186 cites·19 claims
- 1099US8385158B1Method and system for providing a magnetic recording transducer having a planarized near-field transducer and a sloped poleWESTERN DIGITAL FREMONT LLC·Filed 2009·Granted Feb 26, 2013·174 cites·13 claims
- 1199US8381391B2Method for providing a magnetic recording transducerWESTERN DIGITAL FREMONT LLC·Filed 2009·Granted Feb 26, 2013·148 cites·18 claims
- 1299US8375565B2Method for providing an electronic lapping guide corresponding to a near-field transducer of an energy assisted magnetic recording transducerWESTERN DIGITAL FREMONT LLC·Filed 2010·Granted Feb 19, 2013·170 cites·13 claims
- 1399US8373945B1Magnetic writer having a split yokeWESTERN DIGITAL FREMONT LLC·Filed 2007·Granted Feb 12, 2013·150 cites·20 claims
- 1499US8018678B1Method for simultaneous electronic lapping guide (ELG) and perpendicular magnetic recording (PMR) pole formationWESTERN DIGITAL FREMONT LLC·Filed 2008·Granted Sep 13, 2011·157 cites·20 claims
- 1599US8012804B1Method and system for mounting lasers on energy assisted magnetic recording headsWESTERN DIGITAL FREMONT LLC·Filed 2009·Granted Sep 6, 2011·179 cites·18 claims
- 1699US7869160B1Perpendicular recording head with shaped pole surfaces for higher linear data densitiesWESTERN DIGITAL FREMONT LLC·Filed 2005·Granted Jan 11, 2011·179 cites·16 claims
- 1799US7819979B1Method and system for cleaning magnetic artifacts using a carbonyl reactive ion etchWESTERN DIGITAL FREMONT LLC·Filed 2005·Granted Oct 26, 2010·154 cites·30 claims
- 1899US7729086B1Perpendicular magnetic recording head with dynamic flying height heating element disposed below turns of a write coilWESTERN DIGITAL FREMONT LLC·Filed 2008·Granted Jun 1, 2010·169 cites·20 claims
- 1999US7729087B1Magnetic recording head with resistive heating element located near the write coilWESTERN DIGITAL FREMONT LLC·Filed 2008·Granted Jun 1, 2010·173 cites·12 claims
- 2099US7691434B1Method for fabricating magnetoresistive read head having a bias structure with at least one dusting layerWESTERN DIGITAL FREMONT LLC·Filed 2008·Granted Apr 6, 2010·149 cites·16 claims
- 2199US7688546B1Perpendicular magnetic recording head having nonmagnetic insertion layersWESTERN DIGITAL FREMONT LLC·Filed 2006·Granted Mar 30, 2010·150 cites·27 claims
- 2299US7522382B1Head stack assembly with interleaved flexure tail bond pad rowsWESTERN DIGITAL FREMONT LLC·Filed 2005·Granted Apr 21, 2009·165 cites·10 claims
- 2399US7493688B1Method of manufacturing a magnetic recording transducerWESTERN DIGITAL FREMONT LLC·Filed 2006·Granted Feb 24, 2009·147 cites·5 claims
- 2499US7443632B1Magnetic head with stitched top pole layer and single layer coil or solenoidal coilWESTERN DIGITAL FREMONT LLC·Filed 2007·Granted Oct 28, 2008·163 cites·8 claims
- 2599US7436638B1Ferromagnetic pinning structure including a first section antiferromagnetically coupled to a pinned layer and a second section elongated relative to the first section in a stripe height directionWESTERN DIGITAL FREMONT LLC·Filed 2007·Granted Oct 14, 2008·165 cites·11 claims
- 2699US7430098B1Perpendicular magnetic recording head with dynamic flying height heating elementWESTERN DIGITAL FREMONT LLC·Filed 2005·Granted Sep 30, 2008·191 cites·22 claims
- 2799US7375926B1Inductive writer design using a soft magnetic pedestal having a high magnetic saturation layerWESTERN DIGITAL FREMONT LLC·Filed 2007·Granted May 20, 2008·151 cites·16 claims
- 2899US7372665B1Magnetic recording head with resistive heating element located near the write coilWESTERN DIGITAL FREMONT LLC·Filed 2005·Granted May 13, 2008·199 cites·80 claims
- 2999US7342752B1Magnetoresistive read head having a bias structure with at least one dusting layerWESTERN DIGITAL FREMONT LLC·Filed 2004·Granted Mar 11, 2008·155 cites·36 claims
- 3099US7337530B1Method for manufacturing a shielded pole magnetic head for perpendicular recordingWESTERN DIGITAL FREMONT LLC·Filed 2007·Granted Mar 4, 2008·176 cites·14 claims
- 3199US7310204B1Inductive writer design for using a soft magnetic pedestal having a high magnetic saturation layerWESTERN DIGITAL FREMONT LLC·Filed 2003·Granted Dec 18, 2007·171 cites·16 claims
- 3299US7292409B1Magnetic head with thin trailing pedestal layerWESTERN DIGITAL FREMONT LLC·Filed 2004·Granted Nov 6, 2007·154 cites·38 claims
- 3399US7283327B1Magnetic write head having resistive heater coilWESTERN DIGITAL FREMONT LLC·Filed 2006·Granted Oct 16, 2007·156 cites·10 claims
- 3498US9147404B1Method and system for providing a read transducer having a dual free layerWESTERN DIGITAL FREMONT LLC·Filed 2015·Granted Sep 29, 2015·18 cites·17 claims
- 3598US8760807B1Method for providing a wraparound shield for a magnetic recording transducer using a damascene processWESTERN DIGITAL FREMONT LLC·Filed 2012·Granted Jun 24, 2014·130 cites·10 claims
- 3698US8720044B1Method for manufacturing a magnetic recording transducer having side shieldsWESTERN DIGITAL FREMONT LLC·Filed 2013·Granted May 13, 2014·140 cites·16 claims
- 3798US8717709B1System for calibrating an electronic lapping guide for a beveled pole in a magnetic recording transducerWESTERN DIGITAL FREMONT LLC·Filed 2012·Granted May 6, 2014·138 cites·3 claims
- 3898US8472288B1Recording head with near field transducer having non-rectangular pin cross sectionWESTERN DIGITAL FREMONT LLC·Filed 2012·Granted Jun 25, 2013·155 cites·8 claims
- 3998US8375564B1Method for fabricating a pole of a magnetic transducerWESTERN DIGITAL FREMONT LLC·Filed 2009·Granted Feb 19, 2013·157 cites·19 claims
- 4098US8351307B1Trailing edge optimized near field transducer having non-rectangular pin cross sectionWESTERN DIGITAL FREMONT LLC·Filed 2010·Granted Jan 8, 2013·174 cites·11 claims
- 4198US8343319B1Method and system for providing an improved hard bias structureWESTERN DIGITAL FREMONT LLC·Filed 2008·Granted Jan 1, 2013·150 cites·9 claims
- 4298US8343364B1Double hard-mask mill back method of fabricating a near field transducer for energy assisted magnetic recordingWESTERN DIGITAL FREMONT LLC·Filed 2010·Granted Jan 1, 2013·178 cites·27 claims
- 4398US8018677B1Magnetic recording head formed by damascene processWESTERN DIGITAL FREMONT LLC·Filed 2007·Granted Sep 13, 2011·162 cites·11 claims
- 4498US8015692B1Method for providing a perpendicular magnetic recording (PMR) headWESTERN DIGITAL FREMONT LLC·Filed 2007·Granted Sep 13, 2011·196 cites·9 claims
- 4598US7968219B1Magnetically soft, high saturation magnetization laminate of iron-cobalt-nitrogen and iron-nickel for perpendicular media underlayersWESTERN DIGITAL FREMONT LLC·Filed 2008·Granted Jun 28, 2011·151 cites·6 claims
- 4698US7911735B1Perpendicular magnetic recording head utilizing a nonmagnetic underlayer layerWESTERN DIGITAL FREMONT LLC·Filed 2007·Granted Mar 22, 2011·158 cites·25 claims
- 4798US7910267B1Method and system for providing optical proximity correction for structures such as a PMR noseWESTERN DIGITAL FREMONT LLC·Filed 2008·Granted Mar 22, 2011·154 cites·26 claims
- 4898US7846643B1Method and system for providing a structure in a microelectronic device using a chromeless alternating phase shift maskWESTERN DIGITAL FREMONT LLC·Filed 2007·Granted Dec 7, 2010·148 cites·12 claims
- 4998US7829264B1Method and system for providing a microelectronic device using a plurality of focus distancesWESTERN DIGITAL FREMONT LLC·Filed 2007·Granted Nov 9, 2010·150 cites·23 claims
- 5098US7785666B1Methods for fabricating a magnetic recording deviceWESTERN DIGITAL FREMONT LLC·Filed 2007·Granted Aug 31, 2010·153 cites·20 claims
Showing the top 50 of 363 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when WESTERN DIGITAL FREMONT LLC files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →