Inventor
JOHNS WILLIAM D
US7 patents
⚠️ This page may combine multiple inventors who share the name “JOHNS WILLIAM D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WESTERN DIGITAL TECH INC
5 patentsUS6885514B1Apr 26, 2005
Method of manufacturing and disk drive produced by measuring the read and write widths and varying the track pitch in the servo-writer
WESTERN DIGITAL TECH INC134 citations98
US7035026B2Apr 25, 2006
Method of manufacturing and disk drive produced by measuring the read and write widths and varying the track pitch in the servo-writer
WESTERN DIGITAL TECH INC115 citations97
US6714372B1Mar 30, 2004
Method of manufacturing a disk drive by measuring the read width in the servo-writer to set the write unsafe limit
WESTERN DIGITAL TECH INC118 citations97
US6791782B1Sep 14, 2004
Method and apparatus for determining operational spindle rotation rate in a disk drive
WESTERN DIGITAL TECH INC27 citations92
US6788480B1Sep 7, 2004
Method and apparatus for determining track density during a servo-track writing operation
WESTERN DIGITAL TECH INC20 citations92