Inventor
WALLASH ALBERT JOHN
US26 patents
⚠️ This page may combine multiple inventors who share the name “WALLASH ALBERT JOHN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
17 patentsUS5761009AJun 2, 1998
Having parastic shield for electrostatic discharge protection
IBM88 citations96
US5712747AJan 27, 1998
Thin film slider with on-board multi-layer integrated circuit
IBM57 citations96
US5644454AJul 1, 1997
Electrostatic discharge protection system for MR heads
IBM67 citations95
US5757590AMay 26, 1998
Fusible-link removable shorting of magnetoresistive heads for electrostatic discharge protection
IBM44 citations94
US6359750B1Mar 19, 2002
Data storage system with TiC MR-head magnetic shield dummy shield spark gap
IBM17 citations92
US6081409AJun 27, 2000
TiC MR-head magnetic shield dummy shield spark gap
IBM28 citations92
US5771571AJun 30, 1998
Method for manufacturing thin film slider with on-board multi-layer integrated circuit
IBM27 citations92
US5710682AJan 20, 1998
Electrostatic discharge protection system for MR heads
IBM45 citations92
US6054330AApr 25, 2000
Method for protecting a magnetoresistive sensor element
IBM33 citations90
US5735036AApr 7, 1998
Lapping process for minimizing shorts and element recession at magnetic head air bearing surface
IBM50 citations89
US6288880B1Sep 11, 2001
Method of making TiC MR-head magnetic shield dummy shield spark gap
IBM11 citations73
US6169639B1Jan 2, 2001
Unipolar last write for improved magnetic stability
IBM7 citations72
US5783981AJul 21, 1998
Magnetic reinitialization of thin film magnetoresistive reproducing heads at the suspension level of media drive manufacturing
IBM10 citations69
US5664319ASep 9, 1997
Magnetic reinitialization of thin film magnetoresistive reproducing heads at the suspension level of media drive manufacturing
IBM10 citations69
US5661614AAug 26, 1997
Method and apparatus for error recovery for unstable magnetorestrictive heads
IBM10 citations64
US6498696B1Dec 24, 2002
Unipolar last write which improves magnetic stability
IBM3 citations61
US6320715B1Nov 20, 2001
Drive electronics employing unipolar last write for improved magnetic stability
IBM0 citations51
HGST Netherlands BV
4 patentsUS8570684B1Oct 29, 2013
Implementing integrated spin-torque oscillator and interface bias control for hard disk drives
HGST Netherlands BV25 citations92
US9117474B1Aug 25, 2015
Implementing write head device for contact detection and spacing sensing
HGST Netherlands BV18 citations83
US9196266B1Nov 24, 2015
Integrated lead suspension (ILS) for two-dimensional magnetic recording (TDMR) disk drive
HGST Netherlands BV1 citations52
US9117469B1Aug 25, 2015
Suspension design with split substrate for improved interference signal immunity
HGST Netherlands BV1 citations52
WESTERN DIGITAL TECH INC
2 patentsHITACHI GLOBAL STORAGE TECH NL
2 patentsUS8004795B2Aug 23, 2011
Magnetic head design having reduced susceptibility to electrostatic discharge from media surfaces
HITACHI GLOBAL STORAGE TECH NL2 citations63
US7957083B2Jun 7, 2011
Method for early detection of magnetic head degradation due to carbon overcoat wear
HITACHI GLOBAL STORAGE TECH NL1 citations52