Inventor · disambiguated record
Chieh-An Chang
Also filed as: CHANG CHIEH-AN
16 granted patents·2 pending applications·18 citations·filing 2020–2024
90Inventor score
Top patents by PatentIndex Score
18 records- 0195US12225276B2Optical element driving mechanismTDK TAIWAN CORP·Filed 2022·Granted Feb 11, 2025·4 cites·13 claims
- 0295US11314031B2Optical element driving mechanismTDK TAIWAN CORP·Filed 2020·Granted Apr 26, 2022·5 cites·20 claims
- 0390US12449631B2Optical element driving mechanismTDK CORP·Filed 2023·Granted Oct 21, 2025·1 cites·18 claims
- 0490US12353045B2Optical element driving mechanismTDK TAIWAN CORP·Filed 2022·Granted Jul 8, 2025·1 cites·20 claims
- 0589US12066688B2Optical element drive mechanismTDK TAIWAN CORP·Filed 2021·Granted Aug 20, 2024·1 cites·22 claims
- 0689US11867969B2Optical element driving mechanismTDK TAIWAN CORP·Filed 2020·Granted Jan 9, 2024·2 cites·20 claims
- 0788US12353047B2Optical systemTDK CORP·Filed 2022·Granted Jul 8, 2025·1 cites·19 claims
- 0887US11809013B2Optical systemTDK TAIWAN CORP·Filed 2020·Granted Nov 7, 2023·2 cites·18 claims
- 0986US2024361567A1Optical element drive mechanismTDK TAIWAN CORP·Filed 2024·Application pending·0 cites
- 1078US11561360B2Optical systemTDK TAIWAN CORP·Filed 2020·Granted Jan 24, 2023·1 cites·18 claims
- 1175US12353046B2Optical component driving mechanismTDK TAIWAN CORP·Filed 2022·Granted Jul 8, 2025·0 cites·18 claims
- 1275US2024377606A1Optical moduleTDK TAIWAN CORP·Filed 2024·Application pending·0 cites
- 1374US11994740B2Optical element drive mechanismTDK TAIWAN CORP·Filed 2021·Granted May 28, 2024·0 cites·19 claims
- 1473US12498536B2Optical element driving mechanismTDK CORP·Filed 2023·Granted Dec 16, 2025·0 cites·18 claims
- 1572US12078861B2Optical systemTDK TAIWAN CORP·Filed 2022·Granted Sep 3, 2024·0 cites·19 claims
- 1670US12461428B2Optical element driving mechanismTDK CORP·Filed 2023·Granted Nov 4, 2025·0 cites·18 claims
- 1769US12323687B2Driving mechanismTDK CORP·Filed 2021·Granted Jun 3, 2025·0 cites·19 claims
- 1864US11550112B2Optical systemTDK TAIWAN CORP·Filed 2020·Granted Jan 10, 2023·0 cites·18 claims
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