Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8115533 | Voltage level shifter and semiconductor device having the same therein | — | 2012-02-14 |
| 8000164 | Self refresh operation of semiconductor memory device | Jin-Hong Ahn, Bong-Hwa Jeong, Shin Ho Chu | 2011-08-16 |
| 8000163 | Self refresh operation of semiconductor memory device | Jin-Hong Ahn, Bong-Hwa Jeong, Shin Ho Chu | 2011-08-16 |
| 7990203 | Internal voltage generation apparatus for semiconductor device | — | 2011-08-02 |
| 7795946 | Level shifter capable of improving current drivability | — | 2010-09-14 |
| 7750718 | Level shifter using coupling phenomenon | — | 2010-07-06 |
| 7710809 | Self refresh operation of semiconductor memory device | Jin-Hong Ahn, Bong-Hwa Jeong, Shin Ho Chu | 2010-05-04 |
| 7684268 | Semiconductor memory device | Sang-Il Park | 2010-03-23 |
| 7602661 | Semiconductor memory apparatus and method of controlling the same | — | 2009-10-13 |
| 6778456 | Temperature detecting circuit | — | 2004-08-17 |
| 6646943 | Virtual static random access memory device and driving method therefor | — | 2003-11-11 |
| 6556645 | Multi-bit counter | — | 2003-04-29 |
| 6400216 | Multi-driving apparatus by a multi-level detection and a method for controlling the same | Hack Soo Kim | 2002-06-04 |
| 6310503 | Delay circuit having a constant delay time | Hyun-Sung Hong, Hack Soo Kim | 2001-10-30 |
| 6307400 | Data register circuit in memory device | Jun Keun Lee | 2001-10-23 |
| 6292420 | Method and device for automatically performing refresh operation in semiconductor memory device | Kang-Yong Kim, Jong Hee Han | 2001-09-18 |
| 6236261 | Multi-driving apparatus by a multi-level detection and a method for controlling the same | Hack Soo Kim | 2001-05-22 |
| 6194954 | Voltage controlled generator for semiconductor devices | Kwang-Jin Lee, Ki-Chang Chun | 2001-02-27 |