Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12159681 | Test systems configured to perform test mode operations for multiple memory devices | Sang-Ah Hyun, Yong Ho Seo, Woo Sik Jung, Jun-Phyo Lee | 2024-12-03 |
| 10236767 | Semiconductor device and internal voltage adjusting method thereof | Jae-Boum Park, Chang-Hyun Lee | 2019-03-19 |
| 9853641 | Internal voltage generation circuit | — | 2017-12-26 |
| 9374092 | Internal voltage compensation circuit | — | 2016-06-21 |
| 8836410 | Internal voltage compensation circuit | — | 2014-09-16 |
| 8000163 | Self refresh operation of semiconductor memory device | Jin-Hong Ahn, Saeng Hwan Kim, Shin Ho Chu | 2011-08-16 |
| 8000164 | Self refresh operation of semiconductor memory device | Jin-Hong Ahn, Saeng Hwan Kim, Shin Ho Chu | 2011-08-16 |
| 7957213 | Semiconductor memory apparatus | — | 2011-06-07 |
| 7944275 | VPP pumping circuit and VPP pumping method using the same | Jae Hoon Kim | 2011-05-17 |
| 7710809 | Self refresh operation of semiconductor memory device | Jin-Hong Ahn, Saeng Hwan Kim, Shin Ho Chu | 2010-05-04 |
| 7554877 | Apparatus and method for data outputting | Tae Jin Kang | 2009-06-30 |
| 7548480 | Circuit and method for supplying power to sense amplifier in semiconductor memory apparatus | — | 2009-06-16 |
| 7379353 | Voltage Pumping Device | — | 2008-05-27 |
| 7366050 | Apparatus and method for data outputting | Tae Jin Kang | 2008-04-29 |
| 7339849 | Internal voltage supply circuit of a semiconductor memory device with a refresh mode | — | 2008-03-04 |
| 7292483 | Back-bias voltage generator for decreasing a current consumption of a self-refresh operation | Young-chul Sohn | 2007-11-06 |
| 7230860 | Voltage pumping device | — | 2007-06-12 |
| 6928014 | Semiconductor memory device reducing noise | — | 2005-08-09 |
| 6717880 | Current reducing device in sense amplifier over driver scheme of semiconductor memory chips and its method | — | 2004-04-06 |
| 6147536 | Delay circuit for delaying a high frequency signal and capable of adjusting an effective pulse width | — | 2000-11-14 |
| 6002616 | Reference voltage generating circuit of sense amplifier using residual data line | — | 1999-12-14 |