Inventor
CHURCH MARK A
US19 patents
⚠️ This page may combine multiple inventors who share the name “CHURCH MARK A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
15 patentsUS4689877ASep 1, 1987
Method and apparatus for controlling the throat height of batch fabricated thin film magnetic transducers
IBM92 citations96
US4652954AMar 24, 1987
Method for making a thin film magnetic head
IBM75 citations96
US4914868AApr 10, 1990
Lapping control system for magnetic transducers
IBM124 citations95
US5597340AJan 28, 1997
Ultimate inductive head integrated lapping system
IBM52 citations94
US5361547ANov 8, 1994
Ultimate inductive head integrated lapping system
IBM60 citations94
US6027397AFeb 22, 2000
Dual element lapping guide system
IBM66 citations93
US6731110B2May 4, 2004
Magneto-resistive device with built-in test structure and method for determining resistance and track width
IBM26 citations92
US5749769AMay 12, 1998
Lapping process using micro-advancement for optimizing flatness of a magnetic head air bearing surface
IBM77 citations92
US4670732AJun 2, 1987
Electrical lapping guide resistor
IBM31 citations92
US4504880AMar 12, 1985
Integrated magnetic recording head assembly including an inductive write subassembly and a magnetoresistive read subassembly
IBM40 citations92
US4219854AAug 26, 1980
Thin film magnetic head assembly
IBM44 citations92
US4912883AApr 3, 1990
Lapping control system for magnetic transducers
IBM81 citations91
US5876264AMar 2, 1999
Deposition process windage calibration
IBM31 citations89
US6684171B2Jan 27, 2004
In-situ stripe height calibration of magneto resistive sensors
IBM31 citations87
US5531017AJul 2, 1996
Thin film magnetic head fabrication method
IBM17 citations73
HITACHI GLOBAL STORAGE TECH
4 patentsUS7333300B2Feb 19, 2008
Magnetoresistive device with lapping guide treated to eliminate magnetoresistive effect thereof
HITACHI GLOBAL STORAGE TECH17 citations92
US6982042B2Jan 3, 2006
Ion bombardment of electrical lapping guides to decrease noise during lapping process
HITACHI GLOBAL STORAGE TECH23 citations92
US6846222B2Jan 25, 2005
Multi-chambered, compliant apparatus for restraining workpiece and applying variable pressure thereto during lapping to improve flatness characteristics of workpiece
HITACHI GLOBAL STORAGE TECH9 citations68
US7332099B2Feb 19, 2008
Ion bombardment of electrical lapping guides to decrease noise during lapping process
HITACHI GLOBAL STORAGE TECH0 citations52