Inventor · disambiguated record
I-Cheng Chang
Also filed as: CHANG I-CHENG
20 granted patents·4 pending applications·334 citations·filing 1975–2025
95Inventor score
Files withTAIWAN SEMICONDUCTOR MFG CO LTD7ITEK CORP5AURORA PHOTONICS INC3CHANG I CHENG3LITTON SYSTEMS INC2
Top patents by PatentIndex Score
24 records- 0197US11404586B1Transistors with enhanced dopant profile and methods for forming the sameTAIWAN SEMICONDUCTOR MFG CO LTD·Filed 2021·Granted Aug 2, 2022·4 cites·20 claims
- 0285US2025351444A1Transistor including a hydrogen-diffusion barrier and methods for forming the sameTAIWAN SEMICONDUCTOR MFG CO LTD·Filed 2025·Application pending·0 cites
- 0383US4052121ANoncollinear tunable acousto-optic filterITEK CORP·Filed 1975·Granted Oct 4, 1977·37 cites·20 claims
- 0482US12432971B2Transistor including a hydrogen-diffusion barrier and methods for forming the sameTAIWAN SEMICONDUCTOR MFG CO LTD·Filed 2024·Granted Sep 30, 2025·0 cites·20 claims
- 0582US4217036AAcoustic-optic coherent modulator and detection systemITEK CORP·Filed 1978·Granted Aug 12, 1980·34 cites·8 claims
- 0674US11837667B2Transistors with enhanced dopant profile and methods for forming the sameTAIWAN SEMICONDUCTOR MFG CO LTD·Filed 2022·Granted Dec 5, 2023·0 cites·20 claims
- 0773US5576880AAcousto-optic bragg cellAURORA PHOTONICS INC·Filed 1994·Granted Nov 19, 1996·43 cites·11 claims
- 0872US11935935B2Transistor including a hydrogen-diffusion barrier and methods for forming the sameTAIWAN SEMICONDUCTOR MFG CO LTD·Filed 2021·Granted Mar 19, 2024·0 cites·20 claims
- 0971US5329397AAcousto-optic tunable filterCHANG I CHENG·Filed 1992·Granted Jul 12, 1994·39 cites·8 claims
- 1061US6424451B1Phase array acousto-optic tunable filter based on birefringent diffractionFiled 1999·Granted Jul 23, 2002·30 cites·10 claims
- 1160US5909304AAcousto-optic tunable filter based on isotropic acousto-optic diffraction using phased array transducersAURORA PHOTONICS INC·Filed 1994·Granted Jun 1, 1999·24 cites·8 claims
- 1258US2025332487A1Portable golf ball holderEAST CHAIN HARDWARE INT LTD·Filed 2024·Application pending·0 cites
- 1358US2024387169A1Method for forming semiconductor device having crystalline semiconductor filmTAIWAN SEMICONDUCTOR MFG CO LTD·Filed 2023·Application pending·0 cites
- 1456US6016216APolarization-independent acousto-optic tunable filterAURORA PHOTONICS INC·Filed 1997·Granted Jan 18, 2000·25 cites·9 claims
- 1556US2025089265A1Ferroelectric non-volatile memory and methods of formationTAIWAN SEMICONDUCTOR MFG CO LTD·Filed 2023·Application pending·0 cites
- 1655US7415151B23D color information acquisition method and 3D color information acquisition deviceIND TECH RES INST·Filed 2003·Granted Aug 19, 2008·11 cites·2 claims
- 1755US4685772ATunable acousto-optic filter with improved spectral resolution and increased apertureUS AIR FORCE·Filed 1985·Granted Aug 11, 1987·18 cites·8 claims
- 1853US4827229ABroad band bulk acoustic wave spectrum analyzer/channelizerLITTON SYSTEMS INC·Filed 1987·Granted May 2, 1989·18 cites·14 claims
- 1950US4720177ATunable acousto-optic filter utilizing internal mode conversionCHANG I CHENG·Filed 1984·Granted Jan 19, 1988·14 cites·4 claims
- 2050US4582397ADiospersive acousto-optic filterCHANG I CHENG·Filed 1983·Granted Apr 15, 1986·14 cites·8 claims
- 2148US4342502ATransverse tunable acousto-optic filterITEK CORP·Filed 1980·Granted Aug 3, 1982·12 cites·5 claims
- 2236US4637689AAcoustically resonant tunable acousto-optic filterITEK CORP·Filed 1986·Granted Jan 20, 1987·6 cites·11 claims
- 2336US4118113ASecond order birefringent acousto-optic deviceITEK CORP·Filed 1976·Granted Oct 3, 1978·4 cites·5 claims
- 2429US5436720AAcousto-optical laser discriminatorLITTON SYSTEMS INC·Filed 1984·Granted Jul 25, 1995·1 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →