Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9159411 | Multi-level memory apparatus and data sensing method thereof | Seung-Tak Ryu, Ji Wook Kwon, Dong Hwan Jin | 2015-10-13 |
| 9001596 | Nonvolatile memory apparatus including sharing driver capable of performing both of read and write operation | — | 2015-04-07 |
| 8933980 | Light scanning unit and image forming apparatus including the same | — | 2015-01-13 |
| 8830729 | Resistive memory apparatus | Taek-Sang Song | 2014-09-09 |
| 8659930 | Non-volatile memory device | Hyuck-Sang Yim, Kwang-seok Kim, Taek-Sang Song | 2014-02-25 |
| 8569490 | Intermediate and process for preparing entecavir using same | Jaeheon Lee, Gha-Seung Park, Jin-Hee Kim, Ji Eun Lee, Tae Jin CHOI +5 more | 2013-10-29 |
| 8426599 | Method for preparation of Montelukast acid in ionic liquid medium | Eun Ju Park, Choong-Hahn Kim, Suk Man Jang, Eun Jung Lim, Young-Kil Chang +2 more | 2013-04-23 |
| 8284032 | Method and apparatus for signal detection in radio frequency identification system | Jong-Rim Lee, Sang-Yun Hwang, Chul Jin Kim, June-Hyeok Im, Hyun-Kuk Choi | 2012-10-09 |
| 8217174 | Method of preparing montelukast and intermediates used therein | Gwan Sun Lee, Young-Kil Chang, Jaeheon Lee, Eun Ju Park, Jaeho Yoo | 2012-07-10 |
| 7800846 | Imaging lens assembly, light scanning unit and image forming apparatus having the same | — | 2010-09-21 |
| 7157576 | Crystalline acid salts of cefdinir and process for preparing cefdinir using same | Gwan Sun Lee, Young-Kil Chang, Hong Sun Kim, Gha-Seung Park, Cheol Kyung Kim | 2007-01-02 |
| 7112672 | Process for the selective preparation of 3-(z) propenyl-cephem compound | Gwan Sun Lee, Young-Kil Chang, Hong Sun Kim, Jae-Heon Lee, Gha-Seung Park +1 more | 2006-09-26 |
| 7084274 | Method for the selective preparation of 3-oxo-4-aza-5α-androstane compound | Young Ho Moon, Kyung Ik Lee, Gha-Seung Park, Jae-cheol Lee, Gwan Sun Lee +1 more | 2006-08-01 |
| 7038050 | Method for the preparation of highly pure 1-androstene derivatives | Young Ho Moon, Dong-Jun KIM, Kyung Ik Lee, Jae-cheol Lee, Gwan Sun Lee +1 more | 2006-05-02 |
| 6639068 | Method of preparing highly pure cefpodoxime proxetil | Gwan Sun Lee, Young-Kil Chang, Jae-Heon Lee, Gha-Seung Park, Keum-Shin Jung | 2003-10-28 |
| 6620930 | Process for preparing 7-amino-3-methoxymethyl-3-cephem-4-carboxylic acid | Gwan Sun Lee, Jae-Heon Lee, Young-Kil Chang, Gha-Seung Park, Cheol Kyung Kim | 2003-09-16 |