Inventor
BARR RONALD A
US30 patents
⚠️ This page may combine multiple inventors who share the name “BARR RONALD A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
READ RITE CORP
17 patentsUS6490125B1Dec 3, 2002
Thin film write head with improved yoke to pole stitch
READ RITE CORP160 citations99
US6469877B1Oct 22, 2002
Spin valve device with improved exchange layer defined track width and method of fabrication
READ RITE CORP155 citations99
US6466401B1Oct 15, 2002
Thin film write head with interlaced coil winding and method of fabrication
READ RITE CORP242 citations99
US6452742B1Sep 17, 2002
Thin film write having reduced resistance conductor coil partially recessed within middle coat insulation
READ RITE CORP182 citations99
US6404601B1Jun 11, 2002
Merged write head with magnetically isolated poletip
READ RITE CORP181 citations99
US6233125B1May 15, 2001
CPP magnetoresistive device and method for making same
READ RITE CORP159 citations99
US6178066B1Jan 23, 2001
Method of fabricating an improved thin film device having a small element with well defined corners
READ RITE CORP158 citations99
US6118638ASep 12, 2000
CPP magnetoresistive device and method for making same
READ RITE CORP159 citations99
US6487056B1Nov 26, 2002
Thin film read head structure with improved bias magnet-to-magnetoresistive element interface and method of fabrication
READ RITE CORP171 citations98
US6433970B1Aug 13, 2002
Structure and method for redeposition free thin film CPP read sensor fabrication
READ RITE CORP166 citations98
US6421212B1Jul 16, 2002
Thin film read head structure with improved bias magnet-to-magnetoresistive element interface and method of fabrication
READ RITE CORP195 citations98
US6417999B1Jul 9, 2002
Magnetoresistive head stabilized structure and method of fabrication thereof
READ RITE CORP177 citations98
US6198609B1Mar 6, 2001
CPP Magnetoresistive device with reduced edge effect and method for making same
READ RITE CORP235 citations97
US6134089AOct 17, 2000
Current perpendicular to plane magnetoresistive device with low resistance lead
READ RITE CORP213 citations96
US5472736ADec 5, 1995
Method of making a bi-level coil for a thin film magnetic transducer
READ RITE CORP23 citations86
US5504999AApr 9, 1996
Method and apparatus for compensating for process variations in an automatic positioning system
READ RITE CORP15 citations74
US5254373AOct 19, 1993
Process of making thin film magnetic head
READ RITE CORP6 citations63
WESTERN DIGITAL FREMONT INC
11 patentsUS7023658B1Apr 4, 2006
Submicron track-width pole-tips for electromagnetic transducers
WESTERN DIGITAL FREMONT INC187 citations99
US6724569B1Apr 20, 2004
Thin film writer with multiplayer write gap
WESTERN DIGITAL FREMONT INC161 citations99
US6687977B2Feb 10, 2004
CPP magnetoresistive device and method for making same
WESTERN DIGITAL FREMONT INC157 citations99
US7111382B1Sep 26, 2006
Methods for fabricating redeposition free thin film CPP read sensors
WESTERN DIGITAL FREMONT INC157 citations98
US6954332B1Oct 11, 2005
Ultra-short yoke and ultra-low stack height writer and method of fabrication
WESTERN DIGITAL FREMONT INC156 citations98
US6833979B1Dec 21, 2004
Structure and method for redeposition free thin film CPP read sensor fabrication
WESTERN DIGITAL FREMONT INC180 citations98
US6816345B1Nov 9, 2004
Magnetoresistive sensors having submicron track widths and method of making
WESTERN DIGITAL FREMONT INC151 citations98
US6765756B1Jul 20, 2004
Ultra-short yoke and ultra-low stack height writer and method of fabrication
WESTERN DIGITAL FREMONT INC159 citations98
US6735850B1May 18, 2004
Thin film read head structure with improved bias magnet-to-magnetoresistive element interface and method of fabrication
WESTERN DIGITAL FREMONT INC171 citations98
US6801408B1Oct 5, 2004
Data storage and retrieval apparatus with thin film read head having a planar sensor element and an extra gap and method of fabrication thereof
WESTERN DIGITAL FREMONT INC154 citations96
US6762910B1Jul 13, 2004
Data storage and retrieval apparatus with thin film read head having inset extra gap insulation layer and method of fabrication
WESTERN DIGITAL FREMONT INC155 citations96