Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8254188 | Semiconductor memory device and delay locked loop control method thereof | — | 2012-08-28 |
| 7956659 | Semiconductor memory device capable of easily performing delay locking operation under high frequency system clock | Seong Jun Lee | 2011-06-07 |
| 7902889 | Delay locked loop | Seong Jun Lee | 2011-03-08 |
| 7821308 | Delay locked loop and method of controlling the same | — | 2010-10-26 |
| 7768860 | Semiconductor memory device for reducing peak current during refresh operation | — | 2010-08-03 |
| 7737745 | DLL clock signal generating circuit capable of correcting a distorted duty ratio | — | 2010-06-15 |
| 7701799 | Semiconductor device | — | 2010-04-20 |
| 7495468 | Semiconductor memory device with on die termination circuit | — | 2009-02-24 |
| 7359269 | Semiconductor memory device for reducing peak current during refresh operation | — | 2008-04-15 |
| 7332948 | Duty cycle correction circuit of a DLL circuit | Sang-Won Park | 2008-02-19 |
| 7212451 | Column selection signal generator of semiconductor memory device | — | 2007-05-01 |
| 7136314 | Memory device and test method thereof | — | 2006-11-14 |
| 7106648 | X-address extractor and memory for high speed operation | — | 2006-09-12 |
| 7042797 | X-address extractor and method for extracting X-address in memory device | — | 2006-05-09 |
| 7031216 | Refresh controller with low peak current | — | 2006-04-18 |
| 6703871 | Amplifier for use in semiconductor integrated circuits | Nam-Gyu Ryu | 2004-03-09 |
| 6359473 | Amplifier for use in semiconductor integrated circuits | Nam-Gyu Ryu | 2002-03-19 |
| 6208581 | Hybrid memory device and method for controlling same | — | 2001-03-27 |
| 6128218 | Hybrid memory device | Jong Hoon Park | 2000-10-03 |
| 6111779 | Cell structure for low electric power static RAM | — | 2000-08-29 |
| 5986956 | Repair control circuit | — | 1999-11-16 |