Inventor · disambiguated record
Chiayu Ai
Also filed as: AI CHIAYU
17 granted patents·5 pending applications·472 citations·filing 1990–2012
95Inventor score
Top patents by PatentIndex Score
22 records- 0195US5471303ACombination of white-light scanning and phase-shifting interferometry for surface profile measurementsWYKO CORP·Filed 1994·Granted Nov 28, 1995·169 cites·15 claims
- 0292US8270067B1Sagnac delay-line interferometer for DPSK demodulationHSIEH YUNG-CHIEH·Filed 2011·Granted Sep 18, 2012·18 cites·20 claims
- 0385US5064286AOptical alignment system utilizing alignment spot produced by image inverterWYKO CORP·Filed 1990·Granted Nov 12, 1991·56 cites·18 claims
- 0477US6816315B1Optical path length tunerOPTOPLEX CORP·Filed 2002·Granted Nov 9, 2004·22 cites·15 claims
- 0574US6714743B2Wide range tunable filterOPTOPLEX CORP·Filed 2001·Granted Mar 30, 2004·20 cites·28 claims
- 0674US5398112AMethod for testing an optical window with a small wedge angleWYKO CORP·Filed 1993·Granted Mar 14, 1995·37 cites·10 claims
- 0773US6909549B1Tunable filter for optical add/drop moduleFiled 2003·Granted Jun 21, 2005·17 cites·30 claims
- 0871US5633715ACentroid approach for estimating modulation peak in broad-bandwidth interferometryWYKO CORP·Filed 1995·Granted May 27, 1997·38 cites·17 claims
- 0970US7408713B1Step-phase interferometric optical interleaverHSIEH YUNG-CHIEH·Filed 2003·Granted Aug 5, 2008·9 cites·8 claims
- 1066US5502566AMethod and apparatus for absolute optical measurement of entire surfaces of flatsWYKO CORP·Filed 1995·Granted Mar 26, 1996·35 cites·8 claims
- 1158US7092162B1Bandwidth enhancement deviceHSIEH YUNG-CHIEH·Filed 2005·Granted Aug 15, 2006·2 cites·17 claims
- 1255US5321497AInterferometric integration technique and apparatus to confine 2π discontinuityWYKO CORP·Filed 1992·Granted Jun 14, 1994·18 cites·26 claims
- 1354US7961316B2Optical spectrum analyzer with continuously rotating tunable filterOPTOPLEX CORP·Filed 2007·Granted Jun 14, 2011·1 cites·6 claims
- 1452US7286757B1Optical performance monitoring deviceOPTOPLEX CORP·Filed 2004·Granted Oct 23, 2007·2 cites·25 claims
- 1550US5452088AMultimode-laser interferometric apparatus for eliminating background interference fringes from thin-plate measurementsWYKO CORP·Filed 1994·Granted Sep 19, 1995·14 cites·22 claims
- 1649US8953161B2Optical spectrum analyzer with continuously rotating tunable filterHSIEH YUNG-CHIEH·Filed 2012·Granted Feb 10, 2015·0 cites·16 claims
- 1748US2011211194A1Optical spectrum analyzer with continuously rotating tuynable filterOPTOPLEX CORP·Filed 2011·Application pending·0 cites
- 1845US5689337ACoaxial disc-mount for measuring flatness of computer-drive discs by interferometryWYKO CORP·Filed 1996·Granted Nov 18, 1997·14 cites·31 claims
- 1940US2006268277A1Michelson interferometer based delay line interferometersOPTOPLEX CORP·Filed 2006·Application pending·0 cites
- 2039US2005270544A1Variable dispersion step-phase interferometersOPTOPLEX CORP·Filed 2005·Application pending·0 cites
- 2137US2011317170A1Wedge pair for phase shiftingHSIEH YUNG-CHIEH·Filed 2011·Application pending·0 cites
- 2237US2002181929A1Variable optical attenuatorOPTOPLEX CORP·Filed 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →