Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8742930 | Gate system | Jeong Ki Ryoo, Jae Yul Choo, Hyung Jun Jeon | 2014-06-03 |
| 8581798 | Radio frequency identification antenna | Jae Yul Choo, Jeong Ki Ryoo | 2013-11-12 |
| 8537069 | Radio frequency identification tag | Jae Yul Choo, Jeong Ki Ryoo | 2013-09-17 |
| 8451125 | Reader based on RFID | Jeong Ki Ryoo, Jae Yul Choo, Hyung Jun Jeon | 2013-05-28 |
| 8406915 | Mobile rack for a library and RFID system for a library including the same | Jae Yul Choo, Jeong Ki Ryoo | 2013-03-26 |
| 8400229 | Vector modulator using time delay and phase shifter | Heon soo Choi, Chang su Choi, Hyung Jun Jeon, Yeong Chan Kim, Jae hwan Im | 2013-03-19 |
| 8395502 | RFID system using circular polarized antenna | Jeong Ki Ryoo, Jae Yul Choo | 2013-03-12 |
| 8322625 | RFID tag for metallic materials | Jae Yul Choo, Jeong Ki Ryoo | 2012-12-04 |