Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12214396 | Seam forming apparatus for elbow duct | Sung Keun Noh, Dong Woo Kang | 2025-02-04 |
| 12151272 | Duct cutting-and-forming device for elbow duct manufacturing device | Ki Tae Kim, Sung Keun Noh | 2024-11-26 |
| 12145186 | Apparatus for forming flange of circular duct | Sung Keun Noh | 2024-11-19 |
| 8881381 | Method of manufacturing printed circuit board | Mi Sun Hwang, Myung Sam Kang, Seon Ha Kang, Gil Yong Shin, Kil Yong Yun +1 more | 2014-11-11 |
| 8464423 | Method of manufacturing a printed circuit board having metal bumps | Myung Sam Kang, Jeong Woo Park, Kil Yong Yun | 2013-06-18 |
| 8141241 | Method of manufacturing a printed circuit board having metal bumps | Myung Sam Kang, Jeong Woo Park, Kil Yong Yun | 2012-03-27 |
| 6583548 | In-line type electron gun in cathode ray tube | Sung Ho Cho, Soo Keun Lee, Dong Young Kim | 2003-06-24 |