Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8596509 | High speed and fine substrate alignment apparatus in roll to roll system | Dong-Min Kim, Sin Kwon, Young Tae Cho, Jung-Woo Seo, Ki Hyun Kim | 2013-12-03 |
| 7648215 | Ink-jet head mount and ink-jet printing apparatus using the same | Se Kyong Song, Jae Rack Choi | 2010-01-19 |
| 7561376 | Servo track writer and a chuck thereof | Sang-jin Choi, Young-kun Kwon, Tae Hwan Kim, Hyun Jin Lee | 2009-07-14 |
| 7370407 | Disc centering device | Sang-jin Choi, Sang-chul Ko, Soo-Hyung Kim, Tae-hoe Ha | 2008-05-13 |
| 7114244 | Disc centering device | Sang-jin Choi, Young-kun Kwon, Hyun Jin Lee, Dong-ok Kwak | 2006-10-03 |
| 6975483 | Disk recording device for manufacturing hard disk drives | Sang-jin Choi, Tae Sang Park, Sang-chul Ko, Dong-ok Kwak | 2005-12-13 |
| 6954330 | Disk chuck | — | 2005-10-11 |