Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10182479 | Voltage regulation circuit for LED tube | Yu-Cheng Chang, Kuo-Chao Lin | 2019-01-15 |
| 9717128 | High-safety LED tube | Yu-Cheng Chang, Kuo-Chao Lin | 2017-07-25 |
| 9674910 | Filament simulation circuit for LED tube | Yu-Cheng Chang | 2017-06-06 |
| 9615421 | LED control circuit | Yu-Cheng Chang | 2017-04-04 |
| 9433052 | LED control system suitable for different types of power sources | Yu-Cheng Chang | 2016-08-30 |
| 8030855 | Single-stage electronic ballast for a fluorescent lamp | Hung-Ching Lu | 2011-10-04 |
| 7902765 | Circuit system for driving high-intensity discharging lamp | Hung-Ching Lu | 2011-03-08 |