Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12237229 | Shallow trench isolation structures having uniform step heights | I-Sheng Chen, Yi-Jing Li | 2025-02-25 |
| 11923436 | Source/drain structure for semiconductor device | Yi-Jing Li, Chia-Der Chang | 2024-03-05 |
| 11699620 | Shallow trench isolation structures having uniform step heights | I-Sheng Chen, Yi-Jing Li | 2023-07-11 |
| 10488538 | Apparatus and techniques for acoustic logging tool modeling | Chung Chang | 2019-11-26 |
| 10473808 | Acoustic logging tool utilizing fundamental resonance | Chung Chang | 2019-11-12 |
| 10439127 | Bender bar transducer having stacked encapsulated actuators | Michael Linley Fripp, Paul G. Junghans, Batakrishna Mandal | 2019-10-08 |
| 10280744 | Bender bar modal shaping | Michael Linley Fripp, Paul G. Junghans, Batakrishna Mandal | 2019-05-07 |
| 9757770 | Asymmetric bender bar transducer | Chung Chang, Arthur Cheng, Jing Jin | 2017-09-12 |
| 9541657 | Method of controlled pulse driving of a stacked PZT bender bar for dipole acoustic radiation | Batakrishna Mandal | 2017-01-10 |
| 9110166 | Acoustic imaging | Chung Chang, Arthur Cheng, Steve Zannoni | 2015-08-18 |
| 8456952 | Curve-fitting technique for determining dispersion characteristics of guided elastic waves | Xiao Ming Tang, Douglas J. Patterson | 2013-06-04 |