Inventor · disambiguated record
Michael J. O'Callaghan
Also filed as: O'CALLAGHAN MICHAEL · O'CALLAGHAN MICHAEL J
10 granted patents·3 pending applications·414 citations·filing 1990–2013
91Inventor score
Files withDISPLAYTECH INC5HANDSCHY MARK A2MICRON TECHNOLOGY INC2CITIZEN FINETECH MIYOTA CO LTD1DISPLAY TECH INC1
Top patents by PatentIndex Score
13 records- 0195US5182665ADiffractive light modulatorDISPLAYTECH INC·Filed 1990·Granted Jan 26, 1993·186 cites·44 claims
- 0291US7733557B2Spatial light modulators with changeable phase masks for use in holographic data storageMICRON TECHNOLOGY INC·Filed 2007·Granted Jun 8, 2010·16 cites·21 claims
- 0382US6525709B1Miniature display apparatus and methodDISPLAYTECH INC·Filed 1997·Granted Feb 25, 2003·69 cites·56 claims
- 0482US5552916ADiffractive light modulatorDISPLAYTECH INC·Filed 1993·Granted Sep 3, 1996·62 cites·30 claims
- 0581US6580078B1Ferroelectric liquid crystal infrared chopperDISPLAYTECH INC·Filed 2001·Granted Jun 17, 2003·25 cites·36 claims
- 0681US6369933B1Optical correlator having multiple active components formed on a single integrated circuitDISPLAY TECH INC·Filed 2000·Granted Apr 9, 2002·29 cites·10 claims
- 0779US8134771B2Spatial light modulators with changeable phase masks for use in holographic data storageHANDSCHY MARK A·Filed 2010·Granted Mar 13, 2012·4 cites·17 claims
- 0879US7656768B2Phase masks for use in holographic data storageMICRON TECHNOLOGY INC·Filed 2005·Granted Feb 2, 2010·5 cites·26 claims
- 0971US8107344B2Phase masks for use in holographic data storageHANDSCHY MARK A·Filed 2009·Granted Jan 31, 2012·2 cites·16 claims
- 1050US6247037B1Optical correlator having multiple active components formed on a single integrated circuitDISPLAYTECH INC·Filed 1999·Granted Jun 12, 2001·16 cites·22 claims
- 1142US2008284973A1Layer alignment of smectic liquid crystalsWALL BENTLEY·Filed 2008·Application pending·0 cites
- 1242US2014009731A1Methods and apparatus for high fill factor and high optical efficiency pixel architectureO'CALLAGHAN MICHAEL·Filed 2012·Application pending·0 cites
- 1338US2013194556A1Polarization Conversion System for a PICO-ProjectorCITIZEN FINETECH MIYOTA CO LTD·Filed 2013·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →