Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9780771 | Gate driving circuit including constant current sources, and switching apparatus and power supply apparatus having the same | Sang Hyun Cha, Yun Joong Lee, Joong Ho Choi, Je Hyeon YU, Hyeon Seon Yu +1 more | 2017-10-03 |
| 9301353 | Light emitting diode driving apparatus | Sang Hyun Cha, Yun Joong Lee | 2016-03-29 |
| 9287777 | Average current controller, average current control method and buck converter using the average current controller | Jong-Tae Hwang, Chan Woo Park, Sang Hyun Cha, Yun Joong Lee | 2016-03-15 |
| 9173265 | Light emitting diode driving apparatus and light emitting diode lighting apparatus | Chan Woo Park, Yun Joong Lee, Jong-Tae Hwang, Je Hyeon YU, Soo Hyun Moon +3 more | 2015-10-27 |
| 9083248 | PWM control circuit, flyback converter and method for controlling PWM | Yun Joong Lee, Sang Hyun Cha, Jae Shin Lee, Chang Seok Lee | 2015-07-14 |
| 9066399 | Illumination driving apparatus for light emitting diode and method thereof | Joong Ho Choi, Sang Hyun Cha, Jae Shin Lee, Chang Seok Lee, Yun Joong Lee | 2015-06-23 |
| 9024531 | Apparatus for driving light emitting diode | Jong-Tae Hwang, Jae Shin Lee, Yun Joong Lee, Sang Hyun Cha | 2015-05-05 |
| 8994281 | Light emitting diode driving apparatus | Jong-Tae Hwang, Sang Hyun Cha, Chang Seok Lee, Yun Joong Lee | 2015-03-31 |
| 8981658 | Apparatus for driving light emitting diode | Yun Joong Lee, Je Hyeon YU, Sang Hyun Cha | 2015-03-17 |
| 8975927 | Gate driver | Jong-Tae Hwang, Sang Hyun Cha, Chang Seok Lee, Yun Joong Lee | 2015-03-10 |
| 8975824 | PWM driving circuit and PWM driving method | Yun Joong Lee, Sang Hyun Cha, Jae Shin Lee, Chang Seok Lee | 2015-03-10 |
| 8917025 | Light emitting diode driving apparatus | Yun Joong Lee, Sang Hyun Cha, Jae Shin Lee, Chang Seok Lee | 2014-12-23 |
| 8890431 | LED driving apparatus and method | Change Seok Lee, Yeun Joong Lee, Sang Hyun Cha, Jae Shin Lee | 2014-11-18 |
| 8816589 | Light emitting diode driving apparatus | Youn Joong Lee, Sang Hyun Cha, Jae Shin Lee, Chang Seok Lee | 2014-08-26 |
| 8796942 | LED circuit | Yeun Joong Lee, Sang Hyun Cha, Jae Shin Lee, Change Seok Lee | 2014-08-05 |
| 8779682 | Illumination driving apparatus | Joong Ho Choi, Yeun Joong Lee, Sang Hyun Cha, Chang Seok Lee | 2014-07-15 |
| 8749147 | LED circuit | Yeun Joong Lee, Sang Hyun Cha, Jae Shin Lee, Change Seok Lee | 2014-06-10 |
| 7936038 | Photodiode cell structure of photodiode integrated circuit for optical pickup and method of manufacturing the same | Ha Woong Jeong, Kyoung Soo Kwon, Chae Dong Go | 2011-05-03 |
| 7817198 | Active pixel array of CMOS image sensor | Shin-Jae Kang, Won Tae Choi, Joo Yul Ko | 2010-10-19 |
| 7646181 | Control circuit of DC-DC converter | Jeong In Cheon, Byoung Own Min, Chang Woo Ha | 2010-01-12 |
| 7348533 | Unit pixel of CMOS image sensor | Joo Yul Ko, Won Tae Choi, Shin-Jae Kang | 2008-03-25 |
| 7348539 | Image sensor for semiconductor light-sensing device and image processing apparatus using the same | Shin-Jae Kang, Won Tae Choi, Joo Yul Ko | 2008-03-25 |
| 7235772 | Image sensor with anti-saturation function in pixel level | Joo Yul Ko, Won Tae Choi, Shin-Jae Kang | 2007-06-26 |
| 7209001 | Offset compensation circuit for a monitoring photodiode | Chang Woo Ha, Kyoung Soo Kwon, Sang Cheol Shin | 2007-04-24 |
| 7057423 | Current-voltage transforming circuit employing limiter circuit | Chang Woo Ha, Kyoung Soo Kwon, Joo Yul Ko | 2006-06-06 |