Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9818447 | Measuring transition shifts due to laser power variation in a heat-assisted magnetic recording device | Xuan Zheng, Walter R. Eppler, Julius K. Hohlfeld | 2017-11-14 |
| 9620163 | Measuring transition shifts due to laser power variation in a heat-assisted magnetic recording device | Xuan Zheng, Walter R. Eppler, Julius K. Hohlfeld | 2017-04-11 |