Issued Patents 2002
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6428153 | Ink pressure adjustment device for inkjet pen | Cheng-Wei Hsu, Shyh-Haur Su, I-Chung Hou, Yuan-Liang Lan | 2002-08-06 |
| 6409324 | Method and apparatus for supplying ink to an printhead | Cheng-Wei Hsu, Shyh-Haur Su, I-Chung Hou, Charles Chang | 2002-06-25 |
| 6402286 | Function test device for optical print head heaters in thermal bubble printers | Hung-Lieh Hu, Yuan-Liang Lan, Jhih-Ping Lu, Charles Chang | 2002-06-11 |
| 6382773 | Method and structure for measuring temperature of heater elements of ink-jet printhead | Charles Chang, Shyh-Haur Su | 2002-05-07 |
| 6378978 | Chip structure of inkjet printhead and method of estimating working life through detection of defects | Charles Chang, Ming-Ling Lee, Jhih-Ping Lu, Chen-Yue Cheng, Yuan-Liang Lan | 2002-04-30 |
| 6364474 | Pressure control device | Charles Chang, I-Chung Hou | 2002-04-02 |