HW

Hemantha K. Wickramasinghe

IBM: 65 patents #1,172 of 70,183Top 2%
HG HGST: 8 patents #217 of 1,677Top 15%
ND National Research Development: 3 patents #81 of 1,071Top 8%
University of California: 3 patents #2,984 of 18,278Top 20%
📍 Irvine, CA: #45 of 6,241 inventorsTop 1%
🗺 California: #3,477 of 386,348 inventorsTop 1%
Overall (All Time): #23,307 of 4,157,543Top 1%
79
Patents All Time

Issued Patents All Time

Showing 51–75 of 79 patents

Patent #TitleCo-InventorsDate
5691540 Assembly for measuring a trench depth parameter of a workpiece Scott D. Halle, Philip Charles Danby Hobbs, Tadashi Mitsui, Theodore G. van Kessel 1997-11-25
5646731 Interferometric detecting/imaging method based on multi-pole sensing Frederic Zenhausern, Yves Martin, Martin P. O'Boyle 1997-07-08
5640242 Assembly and method for making in process thin film thickness measurments Martin P. O'Boyle, John Charles Panner, Thomas E. Sandwick, Theodore G. van Kessel 1997-06-17
5624845 Assembly and a method suitable for identifying a code Frederic Zenhausern 1997-04-29
5623338 Interferometric near-field apparatus based on multi-pole sensing Frederic Zenhausern, Yves Martin, Martin P. O'Boyle 1997-04-22
5623339 Interferometric measuring method based on multi-pole sensing Frederic Zenhausern, Martin P. O'Boyle 1997-04-22
5609744 Assembly suitable for identifying a code sequence of a biomolecule in a gel embodiment Frederic Zenharusern 1997-03-11
5607568 Assembly suitable for identifying a code sequence of a biomolecule in a free-solution embodiment Frederic Zenharusern 1997-03-04
5602820 Method and apparatus for mass data storage Frederic Zenhausern 1997-02-11
5538898 Method suitable for identifying a code sequence of a biomolecule Frederic Zenhausern 1996-07-23
5527110 Method and apparatus for detecting asperities on magnetic disks using thermal proximity imaging David W. Abraham, Anthony P. Praino, Mark E. Re 1996-06-18
5392118 Method for measuring a trench depth parameter of a material 1995-02-21
5384639 Depth measurement of high aspect ratio structures 1995-01-24
5382795 Ultrafine silicon tips for AFM/STM profilometry Thomas Bayer, Johann Greschner, Yves Martin, Helga Weiss, Olaf Wolter 1995-01-17
5347854 Two dimensional profiling with a contact force atomic force microscope Yves Martin 1994-09-20
5298975 Combined scanning force microscope and optical metrology tool Henri A. Khoury, Calvin K. Chi, Joachim Clabes, Philip Charles Danby Hobbs, Laszlo Landstein +2 more 1994-03-29
5283442 Surface profiling using scanning force microscopy Yves Martin, Jordan Poler 1994-02-01
5280341 Feedback controlled differential fiber interferometer Martin Nonnenmacher, deceased, Mehdi Vaez=Iravani 1994-01-18
5263776 Multi-wavelength optical thermometry David W. Abraham, William M. Holber, Joseph S. Logan 1993-11-23
5260577 Sample carriage for scanning probe microscope David W. Abraham, James Michael Hammond, Martin Klos, Kenneth Gilbert Roessler, Robert Marshall Stowell 1993-11-09
5242541 Method of producing ultrafine silicon tips for the AFM/STM profilometry Thomas Bayer, Johann Greschner, Yves Martin, Helga Weiss, Olaf Wolter 1993-09-07
5065103 Scanning capacitance - voltage microscopy James A. Slinkman, Clayton C. Williams 1991-11-12
5003815 Atomic photo-absorption force microscope Yves Martin 1991-04-02
4992659 Near-field lorentz force microscopy David W. Abraham 1991-02-12
4947034 Apertureless near field optical microscope Clayton C. Williams 1990-08-07