Inventor · disambiguated record
David Wachenschwanz
Also filed as: WACHENSCHWANZ DAVID · WACHENSCHWANZ DAVID E
16 granted patents·2 pending applications·1,161 citations·filing 1984–2014
96Inventor score
Top patents by PatentIndex Score
18 records- 0198US7656615B2Perpendicular magnetic recording disk with a soft magnetic layer having a discrete track recording patternWD MEDIA INC·Filed 2006·Granted Feb 2, 2010·72 cites·15 claims
- 0298US7608193B2Perpendicular magnetic discrete track recording diskWD MEDIA INC·Filed 2006·Granted Oct 27, 2009·76 cites·10 claims
- 0398US7549209B2Method of fabricating a magnetic discrete track recording diskWD MEDIA INC·Filed 2005·Granted Jun 23, 2009·108 cites·7 claims
- 0498US7161753B2Modulation of sidewalls of servo sectors of a magnetic disk and the resultant diskKOMAG INC·Filed 2005·Granted Jan 9, 2007·104 cites·15 claims
- 0598US7147790B2Perpendicular magnetic discrete track recording diskKOMAG INC·Filed 2002·Granted Dec 12, 2006·159 cites·41 claims
- 0697US7070870B2Magnetic media with improved exchange couplingKOMAG INC·Filed 2005·Granted Jul 4, 2006·93 cites·10 claims
- 0797US7019924B2Patterned medium and recording headMAXTOR CORP·Filed 2002·Granted Mar 28, 2006·100 cites·51 claims
- 0896US8797667B1Disk drive calibrating bias signal for touchdown sensorWESTERN DIGITAL TECH INC·Filed 2012·Granted Aug 5, 2014·52 cites·18 claims
- 0996US7944643B1Patterns for pre-formatted information on magnetic hard disk mediaWD MEDIA INC·Filed 2007·Granted May 17, 2011·71 cites·25 claims
- 1096US7471484B2Patterned medium and recording headWD MEDIA INC·Filed 2004·Granted Dec 30, 2008·81 cites·10 claims
- 1195US6899959B2Magnetic media with improved exchange couplingKOMAG INC·Filed 2002·Granted May 31, 2005·88 cites·44 claims
- 1295US6893748B2Soft magnetic film for perpendicular recording diskKOMAG INC·Filed 2003·Granted May 17, 2005·90 cites·22 claims
- 1392US8817413B1Disk lubricant management in data storage deviceWESTERN DIGITAL TECH INC·Filed 2013·Granted Aug 26, 2014·61 cites·23 claims
- 1476US9183859B1HAMR writer pole length characterizationWESTERN DIGITAL FREMONT LLC·Filed 2014·Granted Nov 10, 2015·3 cites·20 claims
- 1562US8902533B1Disk drive detecting different asperities on a disk using different sensor bias settingsWESTERN DIGITAL TECH INC·Filed 2013·Granted Dec 2, 2014·1 cites·24 claims
- 1644US2003022024A1Aluminum substrate disk having silica gel coatingFiled 2002·Application pending·0 cites
- 1740US2005036223A1Magnetic discrete track recording diskFiled 2002·Application pending·0 cites
- 1837US4642718AOptimum control of overwrite by record gap length selectionEASTMAN KODAK CO·Filed 1984·Granted Feb 10, 1987·2 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →