Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9865290 | Single surface in-drive erase | Jiangang Liang, Gary W. Calfee | 2018-01-09 |
| 9311941 | Erase coarse guide spiral-based in-drive erase process | Jiangang Liang, Gabor Szita, Gary W. Calfee | 2016-04-12 |