Issued Patents All Time
Showing 51–75 of 98 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7573758 | Phase-change random access memory (PRAM) performing program loop operation and method of programming the same | Joon-Min Park | 2009-08-11 |
| 7573766 | Phase change random access memory and method of testing the same | Byung-Gil Choi, Beak-Hyung Cho, Chang-han Choi, Yu-Hwan Ro | 2009-08-11 |
| 7570511 | Semiconductor memory device having a three-dimensional cell array structure | Woo-Yeong Cho, Sang-Beom Kang | 2009-08-04 |
| 7570530 | Nonvolatile memory device using variable resistive element | Byung-Gil Choi | 2009-08-04 |
| 7548446 | Phase change memory device and associated wordline driving circuit | Hye Jin Kim, Beak-Hyung Cho, Hyung-Rok Oh | 2009-06-16 |
| 7515459 | Method of programming a memory cell array using successive pulses of increased duration | Sang-Beom Kang, Beak-Hyung Cho, Hye Jin Kim | 2009-04-07 |
| 7511993 | Phase change memory device and related programming method | Byung-Gil Choi, Beak-Hyung Cho, 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, Beak-Hyung Cho | 2009-03-10 |
| 7499316 | Phase change memory devices and program methods | Byung-Gil Choi, Yu-Hwan Ro, Joon-Yong Choi, Beak-Hyung Cho, Woo-Yeong Cho | 2009-03-03 |
| 7486536 | Phase-changeable memory device and method of programming the same | Hye Jin Kim, Kwang-Jin Lee, Yu-Hwan Ro | 2009-02-03 |
| 7471553 | Phase change memory device and program method thereof | Kwang-Jin Lee, Sang-Beom Kang, Woo-Yeong Cho | 2008-12-30 |
| 7463511 | Phase change memory device using multiprogramming method | Byung-Gil Choi, Choong-Keun Kwak, Woo-Yeong Cho | 2008-12-09 |
| 7460386 | Layout method of a semiconductor memory device | Beak-Hyung Cho, 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, Beak-Hyung Cho | 2008-11-25 |
| 7457151 | Phase change random access memory (PRAM) device having variable drive voltages | Woo-Yeong Cho, Sang-Beom Kang, Choong-Keun Kwak | 2008-11-25 |
| 7453716 | Semiconductor memory device with stacked control transistors | Sung Min Kim, Eun-Jung Yun, Jong-Soo Seo, Beak-Hyung Cho, Byung-Seo Kim | 2008-11-18 |
| 7450415 | Phase-change memory device | Chang-Soo Lee, Woo-Yeong Cho, Beak-Hyung Cho, Byung-Gil Choi | 2008-11-11 |
| 7436693 | Phase-change semiconductor memory device and method of programming the same | Sang-Beom Kang, Hyung-Rok Oh | 2008-10-14 |
| 7427531 | Phase change memory devices employing cell diodes and methods of fabricating the same | Woo-Yeong Cho, Yun-seung Shin, Hyun-Geun Byun, Sang-Beom Kang, Beak-Hyung Cho +1 more | 2008-09-23 |
| 7417887 | Phase change memory device and method of driving word line thereof | Beak-Hyung Cho, Jong-Soo Seo, Woo-Yeong Cho | 2008-08-26 |
| 7414915 | Memory device with reduced word line resistance | Beak-Hyung Cho | 2008-08-19 |
| 7405965 | Phase change memory device | Byung-Gil Choi, Woo-Yeong Cho | 2008-07-29 |
| 7397681 | Nonvolatile memory devices having enhanced bit line and/or word line driving capability | Beak-Hyung Cho, Choong-Keun Kwak, Hyung-Rok Oh, Woo-Yeong Cho | 2008-07-08 |
| 7391644 | Phase-changeable memory device and read method thereof | Woo-Yeong Cho, Byung-Gil Choi, Hyung-Rok Oh, Beak-Hyung Cho, Yu-Hwan Ro | 2008-06-24 |
| 7352616 | Phase change random access memory, boosting charge pump and method of generating write driving voltage | Sang-Beom Kang, Hyung-Rok Oh, Kwang-Jin Lee | 2008-04-01 |