Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11513459 | Power supply apparatus for selectively changing power amplification method based on power mode of image forming device | Sung-kyu Choi | 2022-11-29 |
| 10892685 | Power supply device and image forming apparatus having the same | Hong-ki Jung | 2021-01-12 |
| 9559527 | Discharging circuit, image forming apparatus having the discharging circuit, and power supply unit | — | 2017-01-31 |
| 9383673 | Power control apparatus and image forming apparatus | — | 2016-07-05 |
| 9172309 | Switching mode power supply usable in an image forming apparatus, and image forming apparatus and method of supplying power by using the same | — | 2015-10-27 |
| 9075546 | Power supply device and image forming apparatus having the same | — | 2015-07-07 |
| 9048737 | Switching-mode power supply (SMPS) having overvoltage cutoff function, and method of cutting off overvoltage and image forming apparatus using the SMPS | Yong-geun Kim | 2015-06-02 |
| 8953964 | Image forming apparatus and method of controlling fusing temperature of the same | Yong-geun Kim | 2015-02-10 |
| 8502123 | Apparatus and method to protect half or full bridge circuit including first switching unit and second switching unit in image forming apparatus performing induction heating | Kyung-hwan So | 2013-08-06 |
| 8447200 | Fusing device, image forming apparatus having the same, and control method thereof | Sok Won Paik | 2013-05-21 |
| 8340538 | Method and apparatus to control electronic power of coil which performs induction heating in imaging apparatus | — | 2012-12-25 |
| 8149670 | Optical disk apparatus and method of driving the same | Jong Hyun Shin | 2012-04-03 |
| 7990815 | Optical disc apparatus and method of driving the same | Joon-Young Jeong, Joong-gon Kim, Hyun Seok Yang, Chong-sam Chung, Noh-cheol Park +3 more | 2011-08-02 |
| 7957233 | Near-field gap pull-in method and optical disc apparatus therefor | Jong Hyun Shin, Kyung-geun Lee, Tatsuhiro Otsuka | 2011-06-07 |
| 7924674 | Recording method to generate a box type recording pattern with a first pulse having a first power level and a second pulse having a second power level, and recording apparatus, and optical recording medium for the same | Wook-yeon Hwang, Kyung-geun Lee, Tatsuhiro Otsuka, In-joo Kim | 2011-04-12 |
| 7916586 | Near field optical recording/reproducing apparatus and method of normalizing gap error signal of the same | Jong Hyun Shin, In-joo Kim, Mu-kun An | 2011-03-29 |
| 7821907 | Apparatus and method for reproducing optical disk | In-joo Kim, Tatsuhiro Otsuka | 2010-10-26 |