Inventor · disambiguated record
Wai Cheung Leung
Also filed as: LEUNG WAI C · LEUNG WAI CHEUNG
18 granted patents·451 citations·filing 1988–2000
95Inventor score
Files withIBM18
Top patents by PatentIndex Score
18 records- 0196US4873430AMethod and apparatus for optically measuring characteristics of a thin film by directing a P-polarized beam through an integrating sphere at the brewster's angle of the filmIBM·Filed 1988·Granted Oct 10, 1989·122 cites·15 claims
- 0287US6314814B1Method and apparatus for precise measurement of pressure dependence of head fly height using transitional thermal signalsIBM·Filed 2000·Granted Nov 13, 2001·25 cites·15 claims
- 0379US6624884B1Surface inspection toolIBM·Filed 1997·Granted Sep 23, 2003·54 cites·15 claims
- 0475US6477008B1Magnetic recording transducer with electronic shieldIBM·Filed 1999·Granted Nov 5, 2002·27 cites·38 claims
- 0574US6704435B1Surface inspection toolIBM·Filed 1997·Granted Mar 9, 2004·42 cites·20 claims
- 0674US6614519B1Surface inspection tool using a parabolic mirrorIBM·Filed 2000·Granted Sep 2, 2003·12 cites·15 claims
- 0770US5933230ASurface inspection toolIBM·Filed 1997·Granted Aug 3, 1999·34 cites·18 claims
- 0865US6117620AMethod of producing a calibration diskIBM·Filed 1998·Granted Sep 12, 2000·15 cites·14 claims
- 0963US6407891B1Magnetic read/write head having electromagnetic field cancellation elementIBM·Filed 1999·Granted Jun 18, 2002·16 cites·39 claims
- 1055US5969370ASurface inspection toolIBM·Filed 1997·Granted Oct 19, 1999·11 cites·20 claims
- 1153US5945685AGlass substrate inspection tool having a telecentric lens assemblyIBM·Filed 1997·Granted Aug 31, 1999·17 cites·18 claims
- 1251US6330122B1Magnetic tester for disk surface scanIBM·Filed 1999·Granted Dec 11, 2001·9 cites·24 claims
- 1351US6081411AThin film disk media using optimum surface orientation to written data tracksIBM·Filed 1998·Granted Jun 27, 2000·10 cites·15 claims
- 1449US6357095B1Hard disk burnishing headIBM·Filed 1999·Granted Mar 19, 2002·12 cites·10 claims
- 1548US6100971ASurface inspection toolIBM·Filed 1997·Granted Aug 8, 2000·13 cites·21 claims
- 1648US5867261ASurface inspection toolIBM·Filed 1997·Granted Feb 2, 1999·13 cites·20 claims
- 1746US5917589ASurface inspection toolIBM·Filed 1997·Granted Jun 29, 1999·11 cites·22 claims
- 1844US5847823ASurface inspection toolIBM·Filed 1997·Granted Dec 8, 1998·8 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →