Issued Patents 2016
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9482965 | Transmission balancing for phase shift mask with a trim mask | Dan Yu, Yi-Cheng Liu | 2016-11-01 |
| 9411234 | Writer pole formation | Yi-Cheng Liu, Dan Yu, Xiaohong Zhang | 2016-08-09 |
| 9341939 | Transmission balancing for phase shift mask with a trim mask | Dan Yu, Yi-Cheng Liu | 2016-05-17 |