Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6705699 | Image output device for improving image resolution and tone expression | Ben-Chuan Du | 2004-03-16 |
| 6679577 | Method of performing printhead maintenance | Ben-Chuan Du | 2004-01-20 |
| 6509920 | Ink ribbon positioning system of a color printer | Li-Fu Sung | 2003-01-21 |
| 6416148 | Method and system for improving the print quality of a printer | Ben-Chuan Du | 2002-07-09 |
| 6416147 | Printing device with optimized print head positioning logic | Ben-Chuan Du | 2002-07-09 |
| 6396526 | Ink ribbon positioning system of a color printer | Li-Fu Sung | 2002-05-28 |
| 6371593 | Error detection and correction for printer positioning logic | Ben-Chuan Du | 2002-04-16 |