Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7447092 | Write driver circuit for controlling a write current applied to a phase change memory based on an ambient temperature | Woo-Yeong Cho, Hyung-Rok Oh, Byung-Gil Choi | 2008-11-04 |
| 7248494 | Semiconductor memory device capable of compensating for leakage current | Hyung-Rok Oh, Choong-Keun Kwak | 2007-07-24 |
| 6885602 | Programming method of controlling the amount of write current applied to phase change memory device and write driver circuit therefor | Woo-Yeong Cho, Hyung-Rok Oh, Byung-Gil Choi | 2005-04-26 |
| 5999390 | Input buffer circuit for semiconductor device | Choong-Keun Kwak, Ho-Geun Shin | 1999-12-07 |