Inventor
GONCHAROV ALEXANDER
US56 patents
⚠️ This page may combine multiple inventors who share the name “GONCHAROV ALEXANDER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WESTERN DIGITAL TECH INC
44 patentsUS10366714B1Jul 30, 2019
Magnetic write head for providing spin-torque-assisted write field enhancement
WESTERN DIGITAL TECH INC95 citations98
US10762917B1Sep 1, 2020
Reversed mode spin torque oscillator with shaped field generation layer
WESTERN DIGITAL TECH INC20 citations94
US10388305B1Aug 20, 2019
Apparatus and method for writing to magnetic media using an AC bias current to enhance the write field
WESTERN DIGITAL TECH INC18 citations93
US11900971B1Feb 13, 2024
Magnetic recording head with assisting electric current in trailing shield
WESTERN DIGITAL TECH INC10 citations86
US11881237B1Jan 23, 2024
Cross track current design for energy assisted magnetic recording
WESTERN DIGITAL TECH INC9 citations86
US11869548B1Jan 9, 2024
Magnetic recording devices having external alternating current sources
WESTERN DIGITAL TECH INC9 citations86
US11508401B1Nov 22, 2022
Magnetic recording devices having cross-track current flow to facilitate downtrack magnetic field enhancements
WESTERN DIGITAL TECH INC13 citations86
US10839844B1Nov 17, 2020
Current-assisted magnetic recording write head with wide conductive element in the write gap
WESTERN DIGITAL TECH INC12 citations86
US11257514B2Feb 22, 2022
Magnetic recording devices having negative polarization layer to enhance spin-transfer torque
WESTERN DIGITAL TECH INC5 citations84
US10839832B1Nov 17, 2020
MAMR recording head with high damping trailing shield seed layer
WESTERN DIGITAL TECH INC5 citations84
US11894026B1Feb 6, 2024
Magnetic recording head having leads over the trailing shield for assisting electric currents
WESTERN DIGITAL TECH INC6 citations75
US11854584B1Dec 26, 2023
Current assisted HAMR magnetic writer
WESTERN DIGITAL TECH INC3 citations73
US11682421B2Jun 20, 2023
Tape head design having a null shield for same gap verify
WESTERN DIGITAL TECH INC2 citations73
US11211083B1Dec 28, 2021
MAMR head with synthetic antiferromagnetic (SAF) coupled notch
WESTERN DIGITAL TECH INC2 citations73
US11011190B2May 18, 2021
Magnetic write head with write-field enhancement structure including a magnetic notch
WESTERN DIGITAL TECH INC5 citations73
US10997989B1May 4, 2021
Bilayer hot seed to reduce gap field for magnetic recording heads
WESTERN DIGITAL TECH INC2 citations73
US10811039B2Oct 20, 2020
Magnetic write head for providing spin-torque-assisted write field enhancement
WESTERN DIGITAL TECH INC3 citations73
US10706877B2Jul 7, 2020
Spin torque layer in side gap for improved field and cross track field gradient
WESTERN DIGITAL TECH INC4 citations73
US10546603B2Jan 28, 2020
Magnetic write head for providing spin-torque-assisted write field enhancement
WESTERN DIGITAL TECH INC4 citations73
US11043233B2Jun 22, 2021
Magnetic write head with dual return pole and tapered main pole
WESTERN DIGITAL TECH INC2 citations72
US10643642B2May 5, 2020
Apparatus and method for writing to magnetic media using an AC bias current to enhance the write field
WESTERN DIGITAL TECH INC5 citations72
US12057146B1Aug 6, 2024
Magnetic recording head with an SOT device coupled with side shield
WESTERN DIGITAL TECH INC3 citations70
US12315538B2May 27, 2025
Magnetic recording head with assisting electric current in trailing shield
WESTERN DIGITAL TECH INC1 citations64
US11657836B2May 23, 2023
Magnetic recording devices having negative polarization layer to enhance spin-transfer torque
WESTERN DIGITAL TECH INC0 citations63
US11646053B2May 9, 2023
Tape head design having same gap verify capabilities
WESTERN DIGITAL TECH INC1 citations63
US12444434B2Oct 14, 2025
Magnetic recording head with current path between trailing shield and leading shield for improved resistance
WESTERN DIGITAL TECH INC0 citations62
US12380923B2Aug 5, 2025
Magnetic recording head with a cross-track current flow in a low resistance path
WESTERN DIGITAL TECH INC0 citations62
US12249358B2Mar 11, 2025
Magnetic recording devices having external alternating current sources
WESTERN DIGITAL TECH INC0 citations62
US12230298B2Feb 18, 2025
Method to enhance spin torque layer performance in a spintronic device
WESTERN DIGITAL TECH INC0 citations62
US12205620B2Jan 21, 2025
Dynamic DC field compensator for MAMR recording head
WESTERN DIGITAL TECH INC0 citations62
US12190920B2Jan 7, 2025
Spintronic device comprising dual FGL and dual SPL to reduce perpendicular field at writing location
WESTERN DIGITAL TECH INC0 citations62
US12190919B2Jan 7, 2025
Dual FGL and dual SPL spintronic device to reduce perpendicular field at writing location
WESTERN DIGITAL TECH INC0 citations62
US12094498B1Sep 17, 2024
Recording head with a multilayer spin torque element having positive and negative beta materials
WESTERN DIGITAL TECH INC0 citations62
US11651783B1May 16, 2023
Two layer leading shield design with non-conformal shapes for magnetic recording heads
WESTERN DIGITAL TECH INC0 citations62
US10997990B2May 4, 2021
Spin torque layer in side gap for improved field and cross track field gradient
WESTERN DIGITAL TECH INC0 citations62
US10957346B2Mar 23, 2021
Magnetic recording devices and methods using a write-field-enhancement structure and bias current with offset pulses
WESTERN DIGITAL TECH INC1 citations62
US10943616B2Mar 9, 2021
Current-assisted magnetic recording write head with wide conductive element in the write gap
WESTERN DIGITAL TECH INC1 citations62
US10923145B2Feb 16, 2021
Microwave-assisted magnetic recording (MAMR) write head with compensation for DC shunting field
WESTERN DIGITAL TECH INC0 citations62
US10891977B1Jan 12, 2021
MAMR recording head with high damping trailing shield seed layer
WESTERN DIGITAL TECH INC0 citations62
US10636441B2Apr 28, 2020
Microwave-assisted magnetic recording (MAMR) write head with compensation for DC shunting field
WESTERN DIGITAL TECH INC1 citations62
US11881235B2Jan 23, 2024
Leading shield for magnetic recording heads
WESTERN DIGITAL TECH INC0 citations61
US11417356B1Aug 16, 2022
Write assist stack to reduce resistance and improve reliability
WESTERN DIGITAL TECH INC0 citations59
US12057145B2Aug 6, 2024
Magnetic recording heads having one or more dusting layers for magnetic recording devices
WESTERN DIGITAL TECH INC0 citations52
US11769522B2Sep 26, 2023
MAMR recording head with SAF trailing shield notch and/or bump
WESTERN DIGITAL TECH INC0 citations52
FOTONATION LTD
5 patentsUS10467469B2Nov 5, 2019
Optical system for an image acquisition device
FOTONATION LTD6 citations72
US10051208B2Aug 14, 2018
Optical system for acquisition of images with either or both visible or near-infrared spectra
FOTONATION LTD3 citations72
US10514529B2Dec 24, 2019
Portrait lens system formed with an adjustable meniscus lens
FOTONATION LTD2 citations68
US10606050B2Mar 31, 2020
Portrait lens system suitable for use in a mobile camera
FOTONATION LTD1 citations58
US10212366B2Feb 19, 2019
Iris image acquisition system
FOTONATION LTD1 citations56
HGST Netherlands BV
1 patentShowing the top 50 of 56 patents by PatentIndex Score.