Issued Patents All Time
Showing 1–25 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8248842 | Memory cell array biasing method and a semiconductor memory device | Beak-Hyung Cho, Do-Eung Kim, Sang-Beom Kang, Woo-Yeong Cho, Hyung-Rok Oh | 2012-08-21 |
| 8043869 | Magnetic memory device and method of fabricating the same | Woo-Yeong Cho, Yun-seung Shin, Hyun-Geun Byun | 2011-10-25 |
| 7994493 | Phase change memory devices employing cell diodes and methods of fabricating the same | Woo-Yeong Cho, Du-Eung Kim, Yun-seung Shin, Hyun-Geun Byun, Sang-Beom Kang +1 more | 2011-08-09 |
| 7876609 | Nonvolatile memory device and related methods of operation | Kwang-Jin Lee, Du-Eung Kim | 2011-01-25 |
| 7851878 | Magnetic memory device and method of fabricating the same | Woo-Yeong Cho, Yun-seung Shin, Hyun-Geun Byun | 2010-12-14 |
| 7796425 | Control of set/reset pulse in response to peripheral temperature in PRAM device | Byung-Gil Choi, Woo-Yeong Cho | 2010-09-14 |
| 7710767 | Memory cell array biasing method and a semiconductor memory device | Beak-Hyung Cho, Do-Eung Kim, Sang-Beom Kang, Woo-Yeong Cho, Hyung-Rok Oh | 2010-05-04 |
| 7688620 | Nonvolatile memory device and related methods of operation | Kwang-Jin Lee, Du-Eung Kim | 2010-03-30 |
| 7582941 | Magnetic memory device and method of fabricating the same | Woo-Yeong Cho, Yun-seung Shin, Hyun-Geun Byun | 2009-09-01 |
| 7535760 | Memory devices and memory systems having the same | Kwang-Jin Lee, Won Seok Lee | 2009-05-19 |
| 7502251 | Phase-change memory device and method of writing a phase-change memory device | Byung-Gil Choi, 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 | Byung-Gil Choi, Sang-Beom Kang, Joon-Yong Choi | 2009-03-03 |
| 7463511 | Phase change memory device using multiprogramming method | Byung-Gil Choi, Du-Eung Kim, Woo-Yeong Cho | 2008-12-09 |
| 7460386 | Layout method of a semiconductor memory device | Beak-Hyung Cho, Du-Eung Kim, Byung-Gil Choi | 2008-12-02 |
| 7457151 | Phase change random access memory (PRAM) device having variable drive voltages | Woo-Yeong Cho, Du-Eung Kim, Sang-Beom Kang | 2008-11-25 |
| 7427531 | Phase change memory devices employing cell diodes and methods of fabricating the same | Woo-Yeong Cho, Du-Eung Kim, Yun-seung Shin, Hyun-Geun Byun, Sang-Beom Kang +1 more | 2008-09-23 |
| 7426129 | Layout structures in semiconductor memory devices including bit line layout for higher density migration | Byung-Gil Choi, Young-Ho Suh | 2008-09-16 |
| 7397681 | Nonvolatile memory devices having enhanced bit line and/or word line driving capability | Beak-Hyung Cho, Du-Eung Kim, Hyung-Rok Oh, Woo-Yeong Cho | 2008-07-08 |
| 7391669 | Semiconductor memory device and core layout thereof | Hye Jin Kim, Woo-Yeong Cho, Sang-Beom Kang | 2008-06-24 |
| 7349246 | Initial firing method and phase change memory device for performing firing effectively | Beak-Hyung Cho, Du-Eung Kim | 2008-03-25 |
| 7317655 | Memory cell array biasing method and a semiconductor memory device | Beak-Hyung Cho, Du-Eung Kim, Sang-Beom Kang, Woo-Yeong Cho, Hyung-Rok Oh | 2008-01-08 |
| 7315469 | Control of set/reset pulse in response to peripheral temperature in PRAM device | Byung-Gil Choi, Woo-Yeong Cho | 2008-01-01 |
| 7283387 | Phase change random access memory device having variable drive voltage circuit | Woo-Yeong Cho, Du-Eung Kim, Kwang-Jin Lee | 2007-10-16 |
| 7274586 | Method for programming phase-change memory array to set state and circuit of a phase-change memory device | Byung-Gil Choi, Du-Eung Kim, Beak-Hyung Cho | 2007-09-25 |
| 7254055 | Initial firing method and phase change memory device for performing firing effectively | Beak-Hyung Cho, Du-Eung Kim | 2007-08-07 |