Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8462068 | Log periodic antenna and manufacturing method thereof | Keyng Hun Kim, Chan Kuk Kim | 2013-06-11 |
| 7973735 | Extendable swivel antenna | Keyng Hun Kim, Chan Kuk Kim | 2011-07-05 |
| 7600547 | Variable lamination rapid prototyping apparatus for producing large scale 3-dimensional object | Dong Yol Yang, Hyo Chan Kim, Sang Ho Lee | 2009-10-13 |
| 6702918 | Intermittent material feed type variable-lamination rapid prototyping process and apparatus using linear thermal cutting system | Dong Yol Yang, Dong-Gyu Ahn, Sang Ho Lee, Hong-Seok Choi | 2004-03-09 |