Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9841581 | Photographic lens optical system | Jong Jin Lee, Chan Goo Kang | 2017-12-12 |
| 8995068 | Image photographing device | Jae-Ho Baik, Jae Hyuk Lee, Jung Seok Lee, Myung-jin Lee | 2015-03-31 |
| 7564499 | Illumination device for video presenter and video presenter having the same | Seung Yeob Lee, Myung-ho Yoo | 2009-07-21 |
| 5995299 | Compact zoom lens system | — | 1999-11-30 |
| 5986821 | Two lens group zoom lens system with a high zooming ratio | — | 1999-11-16 |