Issued Patents All Time
Showing 26–50 of 80 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7821865 | Nonvolatile memory device using variable resistive elements | Byung-Gil Choi | 2010-10-26 |
| 7817489 | Power supplying circuit and phase-change random access memory including the same | Kwang Ho Kim, Won Seok Lee | 2010-10-19 |
| 7817465 | Phase change random access memory | Hyung-Rok Oh, Woo-Yeong Cho | 2010-10-19 |
| 7808817 | Nonvolatile memory device using resistive elements and an associated driving method | Byung-Gil Choi | 2010-10-05 |
| 7751232 | Method of testing PRAM device | Chang-Soo Lee, Hyung-Rok Oh, Kwang-Jin Lee | 2010-07-06 |
| 7710767 | Memory cell array biasing method and a semiconductor memory device | Do-Eung Kim, Choong-Keun Kwak, Sang-Beom Kang, Woo-Yeong Cho, Hyung-Rok Oh | 2010-05-04 |
| 7688621 | Memory system, memory device and apparatus including writing driver circuit for a variable resistive memory | Woo-Yeong Cho, Hyung-Rok Oh | 2010-03-30 |
| 7672156 | Phase change random access memory device | Mu-Hui Park, Hyung-Rok Oh | 2010-03-02 |
| 7668007 | Memory system including a resistance variable memory device | Byung-Gil Choi, Woo-Yeong Cho, Du-Eung Kim, Hyung-Rok Oh, Yu-Hwan Ro | 2010-02-23 |
| 7656719 | Phase change memory device generating program current and method thereof | Woo-Yeong Cho, Mu-Hui Park | 2010-02-02 |
| 7643335 | Apparatus and systems using phase change memories | Du-Eung Kim, Woo-Yeong Cho | 2010-01-05 |
| 7639558 | Phase change random access memory (PRAM) device | Kwang-Jin Lee, Mu-Hui Park | 2009-12-29 |
| 7606064 | Method for reducing a reset current for resetting a portion of a phase change material in a memory cell of a phase change memory device and the phase change memory device | Chang Wook Jeong, Jun-Hyok Kong, Ji-Hye Yi | 2009-10-20 |
| 7580278 | Variable resistance memory device | Jong-Soo Seo, Won Seok Lee | 2009-08-25 |
| 7573766 | Phase change random access memory and method of testing the same | Byung-Gil Choi, Du-Eung Kim, Chang-han Choi, Yu-Hwan Ro | 2009-08-11 |
| 7548446 | Phase change memory device and associated wordline driving circuit | Hye Jin Kim, Du-Eung Kim, Hyung-Rok Oh | 2009-06-16 |
| 7548451 | Phase change random access memory | Hyung-Rok Oh, Woo-Yeong Cho | 2009-06-16 |
| 7542356 | Semiconductor memory device and method for reducing cell activation during write operations | Kwang-Jin Lee, Sang-Beom Kang, Hyung-Rok Oh, Woo-Yeong Cho | 2009-06-02 |
| 7515459 | Method of programming a memory cell array using successive pulses of increased duration | Sang-Beom Kang, Du-Eung Kim, Hye Jin Kim | 2009-04-07 |
| 7511993 | Phase change memory device and related programming method | Byung-Gil Choi, Du-Eung Kim, Woo-Yeong Cho | 2009-03-31 |
| 7502251 | Phase-change memory device and method of writing a phase-change memory device | Byung-Gil Choi, Choong-Keun Kwak, Du-Eung Kim | 2009-03-10 |
| 7499316 | Phase change memory devices and program methods | Byung-Gil Choi, Du-Eung Kim, Yu-Hwan Ro, Joon-Yong Choi, Woo-Yeong Cho | 2009-03-03 |
| 7460386 | Layout method of a semiconductor memory device | Du-Eung Kim, Byung-Gil Choi, Choong-Keun Kwak | 2008-12-02 |
| 7457152 | Non-volatile memory devices and systems including phase-change one-time-programmable (OTP) memory cells and related methods | Kwang-Jin Lee, Woo-Yeong Cho, Du-Eung Kim | 2008-11-25 |
| 7453716 | Semiconductor memory device with stacked control transistors | Sung Min Kim, Eun-Jung Yun, Jong-Soo Seo, Du-Eung Kim, Byung-Seo Kim | 2008-11-18 |