Inventor
CHANG I-CHENG
US21 patents
⚠️ This page may combine multiple inventors who share the name “CHANG I-CHENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ITEK CORP
5 patentsUS4217036AAug 12, 1980
Acoustic-optic coherent modulator and detection system
ITEK CORP34 citations92
US4052121AOct 4, 1977
Noncollinear tunable acousto-optic filter
ITEK CORP37 citations92
US4342502AAug 3, 1982
Transverse tunable acousto-optic filter
ITEK CORP12 citations73
US4118113AOct 3, 1978
Second order birefringent acousto-optic device
ITEK CORP4 citations63
US4637689AJan 20, 1987
Acoustically resonant tunable acousto-optic filter
ITEK CORP6 citations62
TAIWAN SEMICONDUCTOR MFG CO LTD
5 patentsUS11404586B1Aug 2, 2022
Transistors with enhanced dopant profile and methods for forming the same
TAIWAN SEMICONDUCTOR MFG CO LTD4 citations72
US12432971B2Sep 30, 2025
Transistor including a hydrogen-diffusion barrier and methods for forming the same
TAIWAN SEMICONDUCTOR MFG CO LTD0 citations61
US11935935B2Mar 19, 2024
Transistor including a hydrogen-diffusion barrier and methods for forming the same
TAIWAN SEMICONDUCTOR MFG CO LTD0 citations61
US11837667B2Dec 5, 2023
Transistors with enhanced dopant profile and methods for forming the same
TAIWAN SEMICONDUCTOR MFG CO LTD0 citations61
US12382837B2Aug 5, 2025
Method for characterizing magnetic device
TAIWAN SEMICONDUCTOR MFG CO LTD0 citations52
AURORA PHOTONICS INC
3 patentsUS6016216AJan 18, 2000
Polarization-independent acousto-optic tunable filter
AURORA PHOTONICS INC25 citations91
US5909304AJun 1, 1999
Acousto-optic tunable filter based on isotropic acousto-optic diffraction using phased array transducers
AURORA PHOTONICS INC24 citations91
US5576880ANov 19, 1996
Acousto-optic bragg cell
AURORA PHOTONICS INC43 citations91