Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9846359 | Diffraction-based overlay marks and methods of overlay measurement | Seung Hwa Oh, Jeong Jin Lee | 2017-12-19 |
| 9335417 | Satellite receiver and system employing server for identifying satellite state | Woo Young Kim, Do-Hyoung Chung | 2016-05-10 |
| 8859169 | Photomask having patterns for EUV light and DUV light | — | 2014-10-14 |
| 8112018 | Developing unit and an image forming apparatus | Hyung-won Yoon | 2012-02-07 |
| 7986609 | Optical recording medium | Hun Seo | 2011-07-26 |
| 7864643 | Apparatus and method for testing mechanical endurance of surface of optical disc, the optical disc of same kind as the tested optical disc | Hun Seo, Jin Hong Kim, Jin Yong Kim | 2011-01-04 |
| 7693447 | Developing device having improved sealing structure | Jeong-hun Pang | 2010-04-06 |
| 7626904 | Apparatus and method for testing mechanical endurance of surface of optical disc, the optical disc of same kind as the tested optical disc | Hun Seo, Jin Hong Kim, Jin Yong Kim | 2009-12-01 |
| 7571077 | Method for evaluating anti-contamination level on a surface of optical recording medium, the apparatus and the optical recording medium | Hun Seo, Jin Hong Kim, Jin Yong Kim | 2009-08-04 |
| 7558512 | Toner cartridge and electrophotographic printer employing the same | Sam-seok Choi, Dong H. Park, Myoung-su Baek | 2009-07-07 |
| 7536275 | Method for evaluating anti-contamination level on a surface of optical recording medium, the apparatus and the optical recording medium | Hun Seo, Jin Hong Kim, Jin Yong Kim | 2009-05-19 |
| 7447470 | Toner cartridge having sliding shutters and electrophotographic image forming apparatus | — | 2008-11-04 |
| 7434924 | Ink cartridge and wet-type electrophotographic image forming apparatus having the same | Myoung-chan Kim | 2008-10-14 |
| 7373098 | Toner cartridge and electrophotographic printer employing the same | Sam-seok Choi, Dong H. Park, Myoung-su Baek | 2008-05-13 |
| 7369805 | Fusing device of electrophotographic image forming apparatus | Jin-yoon Kim, Gwon-cheol Lee | 2008-05-06 |
| 7315267 | Mixed-mode semiconductor memory | Sung Won Chung, Kyu Ho Park | 2008-01-01 |
| 7266321 | Apparatus for supplying voltage to developing device | Byeong-hwa Ahn, Young Min Yoon, Se-hyun Lyu | 2007-09-04 |