Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6834944 | Ink slots for providing ink to unilateral heaters | Leo Hu, Yuan-Liang Lan, Eric G. Lean | 2004-12-28 |
| 6719397 | Ink jet printhead identification circuit and method | Hung-Lieh Hu, Chi-Lung Li, Jack Wu | 2004-04-13 |
| 6698872 | Ink cartridge for preventing ink from spilling | I-Chung Hou | 2004-03-02 |
| 6607265 | Ink print head with low flow resistance central refilling | I-Chung Hou, Yi-Hsuan Lai, Chen-Yu Cheng | 2003-08-19 |
| 6568783 | Recognition circuit for an ink jet printer | Hung-Lieh Hu | 2003-05-27 |
| 6540341 | Pressure controller for an ink cartridge | Shu-Cheng Hsieh, Shyh-Haur Su, Cheng-Wei Hsu, Chin-Tai Chen, I-Chung Hou | 2003-04-01 |
| 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 |
| 6322193 | Method and apparatus for measuring the droplet frequency response of an ink jet printhead | Zhi-Ru Lian, Ming-Ling Lee, Yi-Hsuan Lai, Hung-Lieh Hu | 2001-11-27 |
| 6280021 | Structure of ink slot on ink-jet printhead chip | Yi-Yung Wu, Je-Ping Hu, Yi-Hsuan Lai, Yuh-Horng Chuang | 2001-08-28 |
| 6209993 | Structure and fabricating method for ink-jet printhead chip | Yi-Yung Wu, Hung-Lieh Hu, Ming-Ling Lee | 2001-04-03 |