Inventor
WICKRAMASINGHE HEMANTHA KUMAR
US29 patents
⚠️ This page may combine multiple inventors who share the name “WICKRAMASINGHE HEMANTHA KUMAR”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
20 patentsUS6493183B1Dec 10, 2002
Thermally-assisted magnetic recording system with head having resistive heater in write gap
IBM130 citations98
US6233206B1May 15, 2001
High density magnetic thermal recording and reproducing assembly
IBM90 citations98
US6088176AJul 11, 2000
Method and apparatus for separating magnetic and thermal components from an MR read signal
IBM84 citations95
US6052249AApr 18, 2000
Method and apparatus for data storage using thermal proximity imaging
IBM40 citations95
US7352029B2Apr 1, 2008
Electronically scannable multiplexing device
IBM12 citations93
US6920088B2Jul 19, 2005
Assembly for writing and/or erasing high density data on a media
IBM20 citations93
US6597639B1Jul 22, 2003
Assembly suitable for writing high density data on a ferroelectric media
IBM41 citations93
US6532125B1Mar 11, 2003
Apparatus and method suitable for magnetic-thermal recording
IBM31 citations93
US6433310B1Aug 13, 2002
Assembly suitable for reading/writing/erasing information on a media based on thermal coupling
IBM37 citations93
US5850374ADec 15, 1998
Method and apparatus for data storage using thermal proximity imaging
IBM19 citations92
US5691540ANov 25, 1997
Assembly for measuring a trench depth parameter of a workpiece
IBM32 citations92
US5640242AJun 17, 1997
Assembly and method for making in process thin film thickness measurments
IBM72 citations92
US7385234B2Jun 10, 2008
Memory and logic devices using electronically scannable multiplexing devices
IBM18 citations84
US7795044B2Sep 14, 2010
Electronically scannable multiplexing device
IBM4 citations74
US6757235B2Jun 29, 2004
Assembly suitable for reading data based on thermal coupling
IBM11 citations74
US6510120B2Jan 21, 2003
Method for writing and/or erasing high density data on a media
IBM10 citations74
US5646731AJul 8, 1997
Interferometric detecting/imaging method based on multi-pole sensing
IBM8 citations73
US6567172B1May 20, 2003
System and multipass probe for optical interference measurements
IBM7 citations72
US7514327B2Apr 7, 2009
Electronically scannable multiplexing device
IBM2 citations63
US7692244B2Apr 6, 2010
Electronically scannable multiplexing device
IBM0 citations52
HITACHI GLOBAL STORAGE TECH
5 patentsUS7262936B2Aug 28, 2007
Heating device and magnetic recording head for thermally-assisted recording
HITACHI GLOBAL STORAGE TECH68 citations98
US7133254B2Nov 7, 2006
Magnetic recording head with heating device
HITACHI GLOBAL STORAGE TECH63 citations97
US6771445B1Aug 3, 2004
Assembly and method suitable for thermo-magnetic writing/reading of data
HITACHI GLOBAL STORAGE TECH39 citations93
US6702186B1Mar 9, 2004
Assembly comprising a plurality of media probes for writing/reading high density magnetic data
HITACHI GLOBAL STORAGE TECH25 citations93
US6982843B2Jan 3, 2006
Assembly comprising adjustable heat flux mechanism for thermally assisted/thermal information processing and control
HITACHI GLOBAL STORAGE TECH14 citations84