Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10309942 | Portable device and method for measuring gas in closed space | — | 2019-06-04 |
| 9385802 | Multi-hop relay maritime communication apparatus | Hyung Joo Kim, Seung Yong Lee, Kyong Hee LEE, Jin Kyu Choi, Gwang-Ja Jin +2 more | 2016-07-05 |
| 9319125 | Method and apparatus of wireless communication by using multiple directional antennas | Jin Kyu Choi, Seung Yong Lee, Gwang-Ja Jin, Hyung Joo Kim | 2016-04-19 |
| 9277476 | Maritime wireless communication method and apparatus | Hyung Joo Kim, Seung Yong Lee, Jin Kyu Choi, Jong Min Park, Gwang-Ja Jin | 2016-03-01 |
| 8989305 | Apparatus and method for generating multiband radio frequency signals in maritime wireless communication | Jin Kyu Choi, Jong Min Park, Gwang-Ja Jin, Byung Tae Jang, Dong-Sun Lim | 2015-03-24 |