Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872025 | Laser printer capable of changing a pixel density | Kanji Wada | 1989-10-03 |
| 4862288 | Printing apparatus with plural density control | — | 1989-08-29 |
| 4816924 | Laser printer with toner image density control | — | 1989-03-28 |