Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865955 | Recording elements comprising write-once thin film alloy layers | Kee-Chuan Pan, Yuan-Sheng Tyan | 1989-09-12 |
| 4798785 | Recording elements comprising write-once thin film alloy layers | Kee-Chuan Pan, Yuan-Sheng Tyan | 1989-01-17 |
| 4797871 | Erasable optical recording method | Yuan-Sheng Tyan, Kee-Chuan Pan | 1989-01-10 |