Inventor · disambiguated record
Robert E. Fontana, Jr.
Also filed as: CARLO JAMES T · FONTANA JR ROBERT E · FONTANA JR ROBERT EDWARD · FONTANA ROBERT
150 granted patents·11 pending applications·4,854 citations·filing 1977–2023
99Inventor score
Files withIBM107HITACHI GLOBAL STORAGE TECH33FONTANA JR ROBERT E6HITACHI GLOBAL STORAGE TECH NL5TEXAS INSTRUMENTS INC3
Top patents by PatentIndex Score
161 records- 0198US6266218B1Magnetic sensors having antiferromagnetically exchange-coupled layers for longitudinal biasingIBM·Filed 1999·Granted Jul 24, 2001·216 cites·26 claims
- 0298US6168845B1Patterned magnetic media and method of making the same using selective oxidationIBM·Filed 1999·Granted Jan 2, 2001·194 cites·40 claims
- 0398US6023395AMagnetic tunnel junction magnetoresistive sensor with in-stack biasingIBM·Filed 1998·Granted Feb 8, 2000·235 cites·28 claims
- 0498US5898548AShielded magnetic tunnel junction magnetoresistive read headIBM·Filed 1997·Granted Apr 27, 1999·190 cites·26 claims
- 0598US5701223ASpin valve magnetoresistive sensor with antiparallel pinned layer and improved exchange bias layer, and magnetic recording system using the sensorIBM·Filed 1996·Granted Dec 23, 1997·214 cites·20 claims
- 0698US5561368ABridge circuit magnetic field sensor having spin valve magnetoresistive elements formed on common substrateIBM·Filed 1994·Granted Oct 1, 1996·216 cites·7 claims
- 0797US10014014B1Magnetic recording apparatus having circuits with differing tunnel valve sensors and about the same resistanceIBM·Filed 2017·Granted Jul 3, 2018·20 cites·19 claims
- 0897US9607635B1Current perpendicular-to-plane sensors having hard spacersIBM·Filed 2016·Granted Mar 28, 2017·21 cites·20 claims
- 0997US8102236B1Thin film inductor with integrated gapsFONTANA JR ROBERT E·Filed 2010·Granted Jan 24, 2012·29 cites·25 claims
- 1097US5898547AMagnetic tunnel junction magnetoresistive read head with sensing layer as flux guideIBM·Filed 1997·Granted Apr 27, 1999·150 cites·31 claims
- 1196US8717136B2Inductor with laminated yokeFONTANA JR ROBERT E·Filed 2012·Granted May 6, 2014·20 cites·15 claims
- 1296US6847510B2Magnetic tunnel junction device with bottom free layer and improved underlayerHITACHI GLOBAL STORAGE TECH·Filed 2002·Granted Jan 25, 2005·66 cites·19 claims
- 1396US6680832B2CPP magnetoresistive sensors with in-stack longitudinal biasing and overlapping magnetic shieldIBM·Filed 2001·Granted Jan 20, 2004·72 cites·9 claims
- 1496US6609948B1Method of making an electronic lapping guide (ELG) for lapping a read sensorIBM·Filed 2000·Granted Aug 26, 2003·74 cites·42 claims
- 1596US6114719AMagnetic tunnel junction memory cell with in-stack biasing of the free ferromagnetic layer and memory array using the cellIBM·Filed 1998·Granted Sep 5, 2000·213 cites·37 claims
- 1696US5301079ACurrent biased magnetoresistive spin valve sensorIBM·Filed 1992·Granted Apr 5, 1994·101 cites·28 claims
- 1795US9747931B1Tunnel magnetoresistive sensor having stabilized magnetic shield and dielectric gap sensorIBM·Filed 2016·Granted Aug 29, 2017·15 cites·11 claims
- 1895US8169751B2Magnetoresistive sensor having a structure for activating and deactivating electrostatic discharge prevention circuitryALBRECHT THOMAS ROBERT·Filed 2006·Granted May 1, 2012·19 cites·3 claims
- 1995US7652954B2Thermally assisted recording head with magnetic pole integrated into optical aperture for dual gradient recordingHITACHI GLOBAL STORAGE TECH·Filed 2008·Granted Jan 26, 2010·19 cites·20 claims
- 2095US6259583B1Laminated yoke head with a domain control elementIBM·Filed 1998·Granted Jul 10, 2001·114 cites·15 claims
- 2195US5901018AMagnetic tunnel junction magnetoresistive read head with sensing layer as rear flux guideIBM·Filed 1997·Granted May 4, 1999·110 cites·26 claims
- 2295US5729410AMagnetic tunnel junction device with longitudinal biasingIBM·Filed 1996·Granted Mar 17, 1998·284 cites·14 claims
- 2395US5452163AMultilayer magnetoresistive sensorIBM·Filed 1993·Granted Sep 19, 1995·128 cites·89 claims
- 2494US9263068B1Magnetic read head having a CPP MR sensor electrically isolated from a top shieldIBM·Filed 2014·Granted Feb 16, 2016·17 cites·19 claims
- 2594US6344949B1Flying height adjustment for air bearing slidersIBM·Filed 1999·Granted Feb 5, 2002·84 cites·34 claims
- 2694US6005753AMagnetic tunnel junction magnetoresistive read head with longitudinal and transverse biasIBM·Filed 1998·Granted Dec 21, 1999·120 cites·20 claims
- 2794US5568335AMulti-layer gap structure for high resolution magnetoresistive read headIBM·Filed 1994·Granted Oct 22, 1996·69 cites·20 claims
- 2894US5408373AIntegrated transducer-suspension assembly for vertical recordingIBM·Filed 1993·Granted Apr 18, 1995·75 cites·8 claims
- 2993US9324495B2Planar inductors with closed magnetic loopsIBM·Filed 2013·Granted Apr 26, 2016·10 cites·9 claims
- 3093US8335056B2CPP sensors with hard bias structures that shunt sense current towards a shieldBALAMANE HAMID·Filed 2007·Granted Dec 18, 2012·16 cites·8 claims
- 3193US7161773B2High linear density tunnel junction flux guide read head with in-stack longitudinal bias stack (LBS)HITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jan 9, 2007·22 cites·2 claims
- 3293US6950260B2Thermally assisted magnetic recording system and method of writing using magnetic and thermal gradientsHITACHI GLOBAL TECH NL BV·Filed 2001·Granted Sep 27, 2005·39 cites·13 claims
- 3392US9280991B1TMR head design with insulative layers for shorting mitigationIBM·Filed 2015·Granted Mar 8, 2016·11 cites·18 claims
- 3492US6671139B2In-stack longitudinal bias structure for CIP spin valve sensors with bias layer electrically insulated from free layerIBM·Filed 2002·Granted Dec 30, 2003·43 cites·18 claims
- 3592US6631055B2Tunnel valve flux guide structure formed by oxidation of pinned layerIBM·Filed 2001·Granted Oct 7, 2003·34 cites·29 claims
- 3692US6577476B1Flux guide structure for a spin valve transistor which includes a slider body semiconductor layerIBM·Filed 2002·Granted Jun 10, 2003·36 cites·35 claims
- 3792US6226149B1Planar stitched write head having write coil insulated with inorganic insulationIBM·Filed 1998·Granted May 1, 2001·63 cites·40 claims
- 3892US5528440ASpin valve magnetoresistive element with longitudinal exchange biasing of end regions abutting the free layer, and magnetic recording system using the elementIBM·Filed 1994·Granted Jun 18, 1996·95 cites·9 claims
- 3991US6603623B1Inductive magnetic recording head with impedance matching elementsIBM·Filed 2000·Granted Aug 5, 2003·36 cites·15 claims
- 4091US6452761B1Magneto-resistive and spin-valve sensor gap with reduced thickness and high thermal conductivityIBM·Filed 2000·Granted Sep 17, 2002·40 cites·18 claims
- 4191US5493467AYoke spin valve MR read headIBM·Filed 1994·Granted Feb 20, 1996·55 cites·22 claims
- 4290US11373676B1Write transducer with recessed portion to improve track shingling performanceIBM·Filed 2021·Granted Jun 28, 2022·3 cites·18 claims
- 4390US10354679B2Magnetic recording module having tunnel valve sensors with dissimilar tunnel barrier resistivitiesIBM·Filed 2016·Granted Jul 16, 2019·8 cites·20 claims
- 4490US10297275B2Magnetic recording module having differing tunnel valve sensorsIBM·Filed 2017·Granted May 21, 2019·8 cites·16 claims
- 4590US9892747B2Current perpendicular-to-plane sensors having hard spacersIBM·Filed 2017·Granted Feb 13, 2018·7 cites·20 claims
- 4690US6191918B1Embedded dual coil planar structureIBM·Filed 1998·Granted Feb 20, 2001·54 cites·12 claims
- 4789US8045299B2Method and apparatus for oxidizing conductive redeposition in TMR sensorsHITACHI GLOBAL STORAGE TECH NL·Filed 2006·Granted Oct 25, 2011·15 cites·10 claims
- 4889US7253991B2Planar perpendicular recording headHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Aug 7, 2007·25 cites·11 claims
- 4989US7230805B2Semiconductor slider with an integral spin valve transistor structure and method for making same without a bonding stepHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jun 12, 2007·7 cites·43 claims
- 5089US5454158AMethod of making integral transducer-suspension assemblies for longitudinal recordingIBM·Filed 1994·Granted Oct 3, 1995·49 cites·24 claims
Showing the top 50 of 161 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →