Inventor · disambiguated record
Rama N. Singh
Also filed as: SINGH RAMA · SINGH RAMA N · SINGH RAMA NAND · TIEN LEGAL REPRESENTATIVE CHAO YI
38 granted patents·3 pending applications·1,967 citations·filing 1986–2012
98Inventor score
Top patents by PatentIndex Score
41 records- 0198US6648485B1Highly collimating tapered light guide for uniform illumination of flat panel displaysIBM·Filed 2000·Granted Nov 18, 2003·167 cites·35 claims
- 0296US4747678AOptical relay system with magnificationPERKIN ELMER CORP·Filed 1986·Granted May 31, 1988·129 cites·20 claims
- 0393US5896232AHighly efficient and compact frontlighting for polarization-based reflection light valvesIBM·Filed 1997·Granted Apr 20, 1999·170 cites·27 claims
- 0493US5052763AOptical system with two subsystems separately correcting odd aberrations and together correcting even aberrationsIBM·Filed 1990·Granted Oct 1, 1991·121 cites·36 claims
- 0591US8510699B1Performance driven layout optimization using morphing of a basis set of representative layoutsACAR EMRAH·Filed 2012·Granted Aug 13, 2013·19 cites·21 claims
- 0691US5241423AHigh resolution reduction catadioptric relay lensIBM·Filed 1991·Granted Aug 31, 1993·103 cites·10 claims
- 0790US6985169B1Image capture system for mobile communicationsLENOVO SINGAPORE PTE LTD·Filed 1998·Granted Jan 10, 2006·131 cites·39 claims
- 0890US6816225B2LCD cell construction by mechanical thinning of a color filter substrateIBM·Filed 2001·Granted Nov 9, 2004·46 cites·18 claims
- 0989US6791639B2Direct view display with lenticular lens for improved brightness and wide viewing angleIBM·Filed 2002·Granted Sep 14, 2004·42 cites·10 claims
- 1089US5089913AHigh resolution reduction catadioptric relay lensIBM·Filed 1990·Granted Feb 18, 1992·98 cites·10 claims
- 1188US8682634B2Analyzing a patterning process using a model of yieldBAGHERI SAEED·Filed 2012·Granted Mar 25, 2014·5 cites·20 claims
- 1288US7536664B2Physical design system and methodIBM·Filed 2004·Granted May 19, 2009·44 cites·18 claims
- 1386US8473885B2Physical design system and methodCOHN JOHN M·Filed 2012·Granted Jun 25, 2013·8 cites·20 claims
- 1486US7043712B2Method for adaptive segment refinement in optical proximity correctionIBM·Filed 2003·Granted May 9, 2006·48 cites·20 claims
- 1586US5777789AEfficient optical system for a high resolution projection display employing reflection light valvesIBM·Filed 1997·Granted Jul 7, 1998·96 cites·11 claims
- 1686US5621486AEfficient optical system for a high resolution projection display employing reflection light valvesIBM·Filed 1995·Granted Apr 15, 1997·99 cites·16 claims
- 1785US6600528B2Integrated prism sheet for improved viewing angle in direct view color filterless liquid crystal displaysIBM·Filed 2000·Granted Jul 29, 2003·29 cites·26 claims
- 1884US6587151B1Video camera integration on a portable computerIBM·Filed 1998·Granted Jul 1, 2003·117 cites·14 claims
- 1984US6310713B2Optical system for miniature personal displays using reflective light valvesIBM·Filed 1997·Granted Oct 30, 2001·54 cites·1 claims
- 2084US6247816B1Optical system for projection displays using spatial light modulatorsIBM·Filed 1997·Granted Jun 19, 2001·78 cites·10 claims
- 2184US5401934ALens system for scanning laser apparatusIBM·Filed 1993·Granted Mar 28, 1995·49 cites·5 claims
- 2280US7448018B2System and method for employing patterning process statistics for ground rules waivers and optimizationIBM·Filed 2006·Granted Nov 4, 2008·9 cites·20 claims
- 2380US5597222AOptical relay lens system for projection displaysIBM·Filed 1995·Granted Jan 28, 1997·55 cites·5 claims
- 2477US8219943B2Physical design system and methodCOHN JOHN M·Filed 2009·Granted Jul 10, 2012·6 cites·24 claims
- 2577US7305334B2Methodology for image fidelity verificationIBM·Filed 2005·Granted Dec 4, 2007·7 cites·9 claims
- 2674US8880382B2Analyzing a patterning process using a model of yieldBAGHERI SAEED·Filed 2012·Granted Nov 4, 2014·3 cites·18 claims
- 2773US5786934AEfficient optical system for a high resolution projection display employing reflection light valvesIBM·Filed 1997·Granted Jul 28, 1998·44 cites·13 claims
- 2872US5786873AEfficient optical system for a high resolution projection display employing reflection light valvesIBM·Filed 1997·Granted Jul 28, 1998·38 cites·8 claims
- 2971US7831941B2CA resistance variability prediction methodologyIBM·Filed 2008·Granted Nov 9, 2010·5 cites·18 claims
- 3071US7018746B2Method of verifying the placement of sub-resolution assist features in a photomask layoutIBM·Filed 2003·Granted Mar 28, 2006·18 cites·20 claims
- 3170US5315604AOptical structure for adjusting the peak power of a laser beamIBM·Filed 1993·Granted May 24, 1994·33 cites·8 claims
- 3268US8122387B2Optimizing integrated circuit chip designs for optical proximity correctionHAN GENG·Filed 2009·Granted Feb 21, 2012·3 cites·21 claims
- 3362US5929962AMethod and apparatus for integrating microlens array into a liquid crystal display device using a sacrificial substrateIBM·Filed 1998·Granted Jul 27, 1999·30 cites·16 claims
- 3460US7860701B2Methodology for image fidelity verificationIBM·Filed 2007·Granted Dec 28, 2010·1 cites·9 claims
- 3560US6803972B1Polarization conversion systemIBM·Filed 1997·Granted Oct 12, 2004·24 cites·27 claims
- 3660US5791754ACompact desktop projection display using three mirrorsIBM·Filed 1997·Granted Aug 11, 1998·6 cites·24 claims
- 3759US7962865B2System and method for employing patterning process statistics for ground rules waivers and optimizationIBM·Filed 2008·Granted Jun 14, 2011·1 cites·20 claims
- 3856US5991150ASelf deploying magnifier for a portable computer display screenIBM·Filed 1997·Granted Nov 23, 1999·31 cites·5 claims
- 3947US2011173577A1Techniques for Pattern Process Tuning and Design Optimization for Maximizing Process-Sensitive Circuit YieldsIBM·Filed 2008·Application pending·0 cites
- 4044US2003165013A1Optical system for miniature personal displays using reflective light valvesIBM·Filed 2003·Application pending·0 cites
- 4142US2001026398A1Optical system for miniature personal displays using reflective light valvesIBM·Filed 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →