Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7476958 | Semiconductor wafer having different impurity concentrations in respective regions | Yong-bae Choi | 2009-01-13 |
| 7118948 | Semiconductor wafer having different impurity concentrations in respective regions | Yong-bae Choi | 2006-10-10 |
| 7005908 | Voltage level shift circuit and power supply detection circuit | Yun-Woo Lee | 2006-02-28 |
| 6897688 | Input/output buffer having analog and digital input modes | Yun-Woo Lee, Dae-Gyu Kim | 2005-05-24 |
| 6882585 | ROM memory device having repair function for defective cell and method for repairing the defective cell | Kwang-Lae Cho, Seong-Ho Jeung | 2005-04-19 |
| 6457141 | Semiconductor device with embedded memory cells | Won Chul Kim | 2002-09-24 |
| 5218572 | Semiconductor memory device | Jeon-Hyoung Lee | 1993-06-08 |