Inventor
LEUNG WAI CHEUNG
US12 patents
Patents
12 patentsUS6314814B1Nov 13, 2001
Method and apparatus for precise measurement of pressure dependence of head fly height using transitional thermal signals
IBM25 citations92
US5933230AAug 3, 1999
Surface inspection tool
IBM34 citations92
US6624884B1Sep 23, 2003
Surface inspection tool
IBM54 citations91
US6704435B1Mar 9, 2004
Surface inspection tool
IBM42 citations90
US5945685AAug 31, 1999
Glass substrate inspection tool having a telecentric lens assembly
IBM17 citations82
US6614519B1Sep 2, 2003
Surface inspection tool using a parabolic mirror
IBM12 citations73
US6117620ASep 12, 2000
Method of producing a calibration disk
IBM15 citations73
US6100971AAug 8, 2000
Surface inspection tool
IBM13 citations73
US5969370AOct 19, 1999
Surface inspection tool
IBM11 citations73
US5917589AJun 29, 1999
Surface inspection tool
IBM11 citations73
US5867261AFeb 2, 1999
Surface inspection tool
IBM13 citations73
US5847823ADec 8, 1998
Surface inspection tool
IBM8 citations73