Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881835 | Printer having adjustable gap between print head and recording medium | — | 1989-11-21 |
| 4866326 | Driver circuit for piezoelectric actuator, and impact dot-matrix printer using the driver circuit | Masashi Suzuki | 1989-09-12 |