Issued Patents All Time
Showing 25 most recent of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE45826 | Heater lamp control apparatus and method to detect an inputted AC voltage and providing a pulse signal to correspond thereto | Tae-kwon Na | 2015-12-22 |
| 8953343 | Power supply apparatus having multiple outputs | Jin Ha Kim | 2015-02-10 |
| 8542510 | Power supply input device converting discharge resistance | Jee-hoon Jung | 2013-09-24 |
| 8532517 | Power control method and apparatus to heat a heating roller | Young-min Chae, Sang-yong Han, Se-joong Kim, Jun-seok Cho | 2013-09-10 |
| 8516276 | Apparatus and method for controlling power supplied to fixing unit | Jin Ha Kim, Jong-moon Choi | 2013-08-20 |
| 8487475 | Power supply apparatus and method of supplying power | Jong-hwa Cho, Jong-yang Choo, Chul-woo Oh | 2013-07-16 |
| 8467203 | Apparatus for generating high-voltage and method thereof | Jun-seok Cho | 2013-06-18 |
| 8350407 | High voltage power supply apparatus | Jong-hwa Cho, Jong-yang Choo, Chul-woo Oh | 2013-01-08 |
| 8274176 | Power supply apparatus | Jong-hwa Cho, Jong-yang Choo, Chul-woo Oh | 2012-09-25 |
| 8260167 | High-voltage power supply | Chul-woo Oh | 2012-09-04 |
| 8180241 | Power control method and apparatus to heat a heating roller | Young-min Chae, Sang-yong Han, Se-joong Kim, Jun-seok Cho | 2012-05-15 |
| 8139970 | Image fixing control system and method to increase quality of fixed image | Se-joong Kim, Sang-yong Han | 2012-03-20 |
| 8089790 | Power supply input device | Jee-hoon Jung | 2012-01-03 |
| 8050584 | Power control method and apparatus to heat a heating roller | Young-min Chae, Sang-yong Han, Se-joong Kim, Jun-seok Cho | 2011-11-01 |
| 8045878 | Device for fusing toner on print medium | Young-min Chae, Sang-yong Han, Hwan-guem Kim, Durk-hyun Cho | 2011-10-25 |
| 7986534 | Apparatus to generate high voltage by digital control and method thereof | Young-min Chae, Chul-woo Oh, Jong-hwa Cho, Sang-yong Han | 2011-07-26 |
| 7852641 | Power supply apparatus having multiple outputs | Jin Ha Kim | 2010-12-14 |
| 7843710 | Apparatus and method for controlling power converter | Jin Ha Kim, Young-min Chae | 2010-11-30 |
| 7826759 | Power control method and apparatus to heat a heating roller | Young-min Chae, Sang-yong Han, Se-joong Kim, Jun-seok Cho | 2010-11-02 |
| 7813664 | Power control method and apparatus to control a heating roller | Young-min Chae, Sang-yong Han | 2010-10-12 |
| 7791907 | Apparatus for generating high-voltage and method thereof | Jun-seok Cho | 2010-09-07 |
| 7756438 | Device for fusing toner on print medium | Young-min Chae, Sang-yong Han, Hwan-guem Kim, Durk-hyun Cho | 2010-07-13 |
| 7721121 | Apparatus and method for controlling power supplied to fixing unit | Jin Ha Kim, Jong-moon Choi | 2010-05-18 |
| 7706122 | Analog control ASIC apparatus for high voltage power supply in image forming apparatus and method for controlling high voltage power supply | Young-min Chae, Chul-woo Oh, Jong-hwa Cho, Sang-yong Han | 2010-04-27 |
| 7646619 | Apparatus and method for controlling power converter | Jin Ha Kim, Young-min Chae | 2010-01-12 |