Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875057 | Modular optical printhead for hard copy printers | Edwin A. Hediger, Hieu T. Pham | 1989-10-17 |
| 4837587 | Non-impact printer with nonuniformity correction | — | 1989-06-06 |
| 4835551 | Optical recorder with plural resolution recording | — | 1989-05-30 |
| 4831395 | Printer apparatus | Hieu T. Pham, Kenneth D. Kieffer, Pin S. Tschang, Eric K. Zeise | 1989-05-16 |
| 4799071 | Dot printer with age compensation means | Eric K. Zeise | 1989-01-17 |