Issued Patents All Time
Showing 51–73 of 73 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7511993 | Phase change memory device and related programming method | Du-Eung Kim, Beak-Hyung Cho, Woo-Yeong Cho | 2009-03-31 |
| 7502251 | Phase-change memory device and method of writing a phase-change memory device | Choong-Keun Kwak, Du-Eung Kim, Beak-Hyung Cho | 2009-03-10 |
| 7499306 | Phase-change memory device and method that maintains the resistance of a phase-change material in a set state within a constant resistance range | Choong-Keun Kwak, Sang-Beom Kang, Joon-Yong Choi | 2009-03-03 |
| 7499316 | Phase change memory devices and program methods | Du-Eung Kim, Yu-Hwan Ro, Joon-Yong Choi, Beak-Hyung Cho, Woo-Yeong Cho | 2009-03-03 |
| 7474556 | Phase-change random access memory device | Chang-Soo Lee, Bo-Tak Lim | 2009-01-06 |
| 7463511 | Phase change memory device using multiprogramming method | Choong-Keun Kwak, Du-Eung Kim, Woo-Yeong Cho | 2008-12-09 |
| 7460386 | Layout method of a semiconductor memory device | Beak-Hyung Cho, Du-Eung Kim, Choong-Keun Kwak | 2008-12-02 |
| 7453722 | Phase change memory device and memory cell array thereof | Jong-Soo Seo, Young-kug Moon, Bo-Tak Lim, Su Yeon KIM | 2008-11-18 |
| 7450415 | Phase-change memory device | Du-Eung Kim, Chang-Soo Lee, Woo-Yeong Cho, Beak-Hyung Cho | 2008-11-11 |
| 7447092 | Write driver circuit for controlling a write current applied to a phase change memory based on an ambient temperature | Baek-Hyung Cho, Woo-Yeong Cho, Hyung-Rok Oh | 2008-11-04 |
| 7426129 | Layout structures in semiconductor memory devices including bit line layout for higher density migration | Young-Ho Suh, Choong-Keun Kwak | 2008-09-16 |
| 7405965 | Phase change memory device | Du-Eung Kim, Woo-Yeong Cho | 2008-07-29 |
| 7391644 | Phase-changeable memory device and read method thereof | Woo-Yeong Cho, Du-Eung Kim, Hyung-Rok Oh, Beak-Hyung Cho, Yu-Hwan Ro | 2008-06-24 |
| 7315469 | Control of set/reset pulse in response to peripheral temperature in PRAM device | Choong-Keun Kwak, Woo-Yeong Cho | 2008-01-01 |
| 7274586 | Method for programming phase-change memory array to set state and circuit of a phase-change memory device | Du-Eung Kim, Choong-Keun Kwak, Beak-Hyung Cho | 2007-09-25 |
| 7242605 | Phase-change memory device and method that maintains the resistance of a phase-change material in a reset state within a constant resistance range | Woo-Yeong Cho, Hyung-Rok Oh, Beak-Hyung Cho | 2007-07-10 |
| 7227776 | Phase change random access memory (PRAM) device | Beak-Hyung Cho, Du-Eung Kim, Choong-Keun Kwak | 2007-06-05 |
| 7214963 | 3-D column select circuit layout in semiconductor memory devices | Young-Ho Suh | 2007-05-08 |
| 7113425 | Nonvolatile semiconductor memory device with scalable two transistor memory cells | Woo-Yeong Cho | 2006-09-26 |
| 7110286 | Phase-change memory device and method of writing a phase-change memory device | Choong-Keun Kwak, Du-Eung Kim, Beak-Hyung Cho | 2006-09-19 |
| 7075848 | Redundancy circuit in semiconductor memory device having a multiblock structure | Du-Eung Kim, Choong-Keun Kwak | 2006-07-11 |
| 6885602 | Programming method of controlling the amount of write current applied to phase change memory device and write driver circuit therefor | Baek-Hyung Cho, Woo-Yeong Cho, Hyung-Rok Oh | 2005-04-26 |
| 6288926 | Static semiconductor memory device and fabricating method thereof | Du-Eung Kim, Sang-Jib Han, Choong-Keun Kwak, Soon-Moon Jung, Sung-Bong Kim | 2001-09-11 |