Inventor · disambiguated record
Keh-Su Chang
Also filed as: CHANG KEH-SU
34 granted patents·8 pending applications·97 citations·filing 2011–2019
96Inventor score
Top patents by PatentIndex Score
42 records- 0193US10120272B1Fluorescent color wheel and projectorDELTA ELECTRONICS INC·Filed 2017·Granted Nov 6, 2018·9 cites·10 claims
- 0292US9024241B2Phosphor device and illumination system for converting a first waveband light into a third waveband light which is separated into at least two color lights and projection apparatus with the sameWANG BOR·Filed 2012·Granted May 5, 2015·16 cites·20 claims
- 0391US10309617B2Phosphor wheelDELTA ELECTRONICS INC·Filed 2017·Granted Jun 4, 2019·6 cites·20 claims
- 0490US9891511B2Illumination system and wavelength-converting device thereofDELTA ELECTRONICS INC·Filed 2015·Granted Feb 13, 2018·6 cites·11 claims
- 0588US9432640B2Illumination moduleDELTA ELECTRONICS INC·Filed 2014·Granted Aug 30, 2016·8 cites·18 claims
- 0686US9274407B2Phosphor device and illumination system and projection apparatus with the sameDELTA ELECTRONICS INC·Filed 2014·Granted Mar 1, 2016·5 cites·20 claims
- 0784US9322213B2Display with an adjustable focus mechanismDELTA ELECTRONICS INC·Filed 2015·Granted Apr 26, 2016·3 cites·11 claims
- 0881US10688527B2Phosphor device comprising plural phosphor agents for converting waveband light into plural color lights with different wavelength peaksDELTA ELECTRONICS INC·Filed 2019·Granted Jun 23, 2020·1 cites·24 claims
- 0981US10310363B2Phosphor device with spectrum of converted light comprising at least a color lightDELTA ELECTRONICS INC·Filed 2017·Granted Jun 4, 2019·1 cites·25 claims
- 1081US9726335B2Phosphor device and manufacturing method thereof having a second phosphor agent to increase the luminous intensity of a converted color lightDELTA ELECTRONICS INC·Filed 2015·Granted Aug 8, 2017·2 cites·22 claims
- 1180US8773744B2Light modulating cell, device and systemLIANG RONG-CHANG·Filed 2011·Granted Jul 8, 2014·6 cites·57 claims
- 1279US9006642B2Focus adjustable apparatusWANG YEONG-FENG·Filed 2012·Granted Apr 14, 2015·10 cites·13 claims
- 1378US10288992B2Laser light source for projector and laser projection deviceDELTA ELECTRONICS INC·Filed 2017·Granted May 14, 2019·2 cites·19 claims
- 1476US9164367B2Visible and infrared light source for illumination system and projection device comprising the sameDELTA ELECTRONICS INC·Filed 2014·Granted Oct 20, 2015·3 cites·14 claims
- 1575US8733942B2Illumination system and projector using the sameCHANG KEH-SU·Filed 2011·Granted May 27, 2014·3 cites·24 claims
- 1675US8632197B2Illumination system and wavelength-transforming device thereofDELTA ELECTRONICS INC·Filed 2012·Granted Jan 21, 2014·4 cites·12 claims
- 1770US10281810B2Projection apparatus comprising phosphor wheel coated with phosphor agents for converting waveband lightDELTA ELECTRONICS INC·Filed 2017·Granted May 7, 2019·1 cites·10 claims
- 1870US10156729B2Optical wavelength converter and illumination system with sameDELTA ELECTRONICS INC·Filed 2014·Granted Dec 18, 2018·3 cites·9 claims
- 1970US8608329B2Phosphor plate and illumination system with the sameSUN FU-KUO·Filed 2011·Granted Dec 17, 2013·4 cites·15 claims
- 2068US8714751B2Visible and infrared light source for illumination system and projection device comprising the sameCHANG KEH-SU·Filed 2011·Granted May 6, 2014·2 cites·16 claims
- 2166US9753277B2Wavelength conversion deviceDELTA ELECTRONICS INC·Filed 2016·Granted Sep 5, 2017·1 cites·18 claims
- 2266US9207525B2Phosphor wheel and white light illumination device utilizing the sameDELTA ELECTRONICS INC·Filed 2014·Granted Dec 8, 2015·1 cites·16 claims
- 2364US10758937B2Phosphor device comprising plural phosphor agents for converting waveband light into plural color lightsDELTA ELECTRONICS INC·Filed 2019·Granted Sep 1, 2020·0 cites·14 claims
- 2457US9410370B2Electric curtainDELTA ELECTRONICS INC·Filed 2015·Granted Aug 9, 2016·0 cites·4 claims
- 2553US10319340B2Real-time color mapping system and methodDELTA ELECTRONICS INC·Filed 2017·Granted Jun 11, 2019·0 cites·16 claims
- 2651US10367330B2Diffuser, laser-light-source module using the same, and method for manufacturing the sameDELTA ELECTRONICS INC·Filed 2016·Granted Jul 30, 2019·0 cites·14 claims
- 2751US8952996B2Image display systemWANG YEONG-FENG·Filed 2011·Granted Feb 10, 2015·0 cites·8 claims
- 2849US9360678B2Light modulating module and image displayDELTA ELECTRONICS INC·Filed 2013·Granted Jun 7, 2016·0 cites·30 claims
- 2949US2015232751A1Fluoride fluorescent composition and wavelength-converting device of projector using sameDELTA ELECTRONICS INC·Filed 2014·Application pending·0 cites
- 3048US9291884B2Method of regulating light wavelength for projection deviceDELTA ELECTRONICS INC·Filed 2013·Granted Mar 22, 2016·0 cites·11 claims
- 3148US2015146406A1Blue light mixing method and system using the sameDELTA ELECTRONICS INC·Filed 2014·Application pending·0 cites
- 3247US11117323B2Photocuring three-dimensional molding system and vat heating deviceDELTA ELECTRONICS INC·Filed 2018·Granted Sep 14, 2021·0 cites·20 claims
- 3347US9696013B2Illumination system multi-layered wavelength-converting deviceDELTA ELECTRONICS INC·Filed 2015·Granted Jul 4, 2017·0 cites·11 claims
- 3446US9753276B2Wavelength-converting device and illumination system using sameDELTA ELECTRONICS INC·Filed 2015·Granted Sep 5, 2017·0 cites·20 claims
- 3546US2015153487A1Wavelength-converting deviceDELTA ELECTRONICS INC·Filed 2014·Application pending·0 cites
- 3645US10281638B2Wavelength converting module and light-source module applying the sameDELTA ELECTRONICS INC·Filed 2016·Granted May 7, 2019·0 cites·7 claims
- 3745US2014307432A1Illumination moduleDELTA ELECTRONICS INC·Filed 2013·Application pending·0 cites
- 3844US2016086573A1Real-time color mapping system and methodDELTA ELECTRONICS INC·Filed 2015·Application pending·0 cites
- 3943US9976879B2Color wheel rotation speed detecting moduleDELTA ELECTRONICS INC·Filed 2016·Granted May 22, 2018·0 cites·13 claims
- 4040US2018252843A1Wavelength conversion deviceDELTA ELECTRONICS INC·Filed 2017·Application pending·0 cites
- 4139US2018136457A1Wavelength converterDELTA ELECTRONICS INC·Filed 2017·Application pending·0 cites
- 4235US2016102820A1Optical wavelength-converting device and illumination system using sameDELTA ELECTRONICS INC·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →