Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10048601 | Apparatus for measuring mask error and method therefor | Dong Gun Lee, Dong-Hoon Chung | 2018-08-14 |
| 8522172 | Method of forming photomask using calibration pattern, and photomask having calibration pattern | Young Keun Yoon, Hee-Bom Kim, Myoung-Soo Lee, Chan-uk Jeon | 2013-08-27 |
| 7939223 | Photomask using separated exposure technique, method of fabricating photomask, and apparatus for fabricating photomask by using the method | Seong-woon Choi, Byung-Gook Kim, Hee-Bom Kim, Sung Ho Park | 2011-05-10 |
| 7075708 | Top-pumped waveguide amplifier | Jung Hoon Shin, Nam-Kyoo Park | 2006-07-11 |
| 7030419 | Thin film for optical applications, light-emitting structure using the same and the fabrication method thereof | Jung Hoon Shin, Se-Young Seo | 2006-04-18 |