Inventor · disambiguated record
William D. Johns
Also filed as: JOHNS WILLIAM D
7 granted patents·1 pending application·441 citations·filing 2001–2020
89Inventor score
Top patents by PatentIndex Score
8 records- 0197US7035026B2Method of manufacturing and disk drive produced by measuring the read and write widths and varying the track pitch in the servo-writerWESTERN DIGITAL TECH INC·Filed 2004·Granted Apr 25, 2006·115 cites·10 claims
- 0297US6885514B1Method of manufacturing and disk drive produced by measuring the read and write widths and varying the track pitch in the servo-writerWESTERN DIGITAL TECH INC·Filed 2001·Granted Apr 26, 2005·134 cites·11 claims
- 0397US6714372B1Method of manufacturing a disk drive by measuring the read width in the servo-writer to set the write unsafe limitWESTERN DIGITAL TECH INC·Filed 2001·Granted Mar 30, 2004·118 cites·11 claims
- 0490US8760779B2Energy-assisted magnetic recording head and systems thereof with environmental conditions controlJOHNS WILLIAM D·Filed 2011·Granted Jun 24, 2014·25 cites·19 claims
- 0588US6791782B1Method and apparatus for determining operational spindle rotation rate in a disk driveWESTERN DIGITAL TECH INC·Filed 2002·Granted Sep 14, 2004·27 cites·15 claims
- 0686US11555331B2Barrier control systemJOHNS WILLIAM D·Filed 2020·Granted Jan 17, 2023·2 cites·16 claims
- 0785US6788480B1Method and apparatus for determining track density during a servo-track writing operationWESTERN DIGITAL TECH INC·Filed 2001·Granted Sep 7, 2004·20 cites·34 claims
- 0845US2022185470A1Aerial illumination systemJOHNS WILLIAM D·Filed 2020·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →