Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9544980 | Driving device and illumination system | Yung-Chuan Lu, Yen-Yu Chen | 2017-01-10 |
| 9426869 | Multi-output electronic ballast | Yung-Chuan Lu | 2016-08-23 |
| 9351379 | Integrated light-emitting diode driver circuit and method of operating the same | Chia-Jung Nian | 2016-05-24 |
| 9232619 | Fluorescent electronic ballast | Yung-Chuan Lu, Yen-Yu Chen | 2016-01-05 |
| 9013106 | Lamp ballast having filament heating apparatus for gas discharge lamp | Weiqiang Zhang, Qi Zhang, Yan Zhong, Jianping Ying | 2015-04-21 |
| 8890424 | Illumination device, illumination system, and lamp | Lizhi Xu, Weiqiang Zhang, Jianping Ying, Hsiang-Chen Wu | 2014-11-18 |
| 8890436 | Color temperature adjustable LED lamp | — | 2014-11-18 |
| 8760059 | Current-preheat electronic ballast and resonant capacitor adjusting circuit thereof | Yung-Chuan Lu | 2014-06-24 |
| 8658915 | Two-way wiring device | Dwo Chen, Shang Li | 2014-02-25 |
| 8587207 | Electronic ballast | Tsung-Yu Ou | 2013-11-19 |
| D692827 | Power supply | Dwo Chen, Jui-Ching Lee | 2013-11-05 |
| 8508154 | Lighting devices | Chia-Jung Nian | 2013-08-13 |
| 8378592 | End of lamp life protection circuit with bi-level detections for the electronic ballast and method thereof | Yung-Chuan Lu, Edy Chandra, Chao-Wei Tsai | 2013-02-19 |
| 8159142 | Ballast being capable of saving the use of internal connection terminals | Yuan Zhong, Wei Zhang, Jian-Ping Ying | 2012-04-17 |
| 7477020 | Electronic ballast having a reduced reverse voltage at the start | — | 2009-01-13 |
| 6936979 | Frequency-modulated dimming control system of discharge lamp | San-Jung Lee, Yu-Chi Lee | 2005-08-30 |
| 5467712 | Printing machine with a printing unit adapted to receive various plate cylinders | — | 1995-11-21 |
| 5461978 | Printing press | — | 1995-10-31 |