Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10364537 | Constructing apparatus and method of guide line for road | Doo-haeng Lee, Geon Cheol Seo, Hong-kwan Seo, Kyung Ju Lee | 2019-07-30 |
| 9338899 | Method of manufacturing a rigid-flexible printed circuit board | Yang Je Lee, Il Woon Shin, Going Sik Kim, Ha Il Kim, Dong Gi An | 2016-05-10 |
| 8631567 | Method of manufacturing rigid-flexible printed circuit board | Yang Je Lee, Il Woon Shin, Going Sik Kim, Ha Il Kim, Dong Gi An | 2014-01-21 |
| 4935651 | Automatically controlled dynamic absorber | Yoon S. Ryu | 1990-06-19 |