Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11645640 | Authentication and payment system and method using mobile communication terminal | Jun Won Choi, Joo-Moon Lee, Myung-Sung Lee, Whan-Chul Kim | 2023-05-09 |
| 9990622 | Authentication and payment system and method using mobile communication terminal | Jun Won Choi, Joo-Mun Lee, Myung-Sung Lee, Whan-Chul Kim | 2018-06-05 |
| 8755461 | Local wireless signal transmitting/receiving apparatus and method using digital radio frequency processing technology | Woo Jin Shim, Young Woo Kim, Jae Hwang Yu, Sung Cheol Hong | 2014-06-17 |
| 8654671 | System and method for QoS support in ubiquitous sensor | Woo Jin Shim, Yong Gil Park, Jae Hwang Yu, Sung Cheol Hong | 2014-02-18 |
| 8407741 | System, server and method for providing supplementary information service related to broadcast content | Goon Seop Lee, Dong Hahk Lee, Jae Hwang Yu, Jong Tae Ihm, Ku Ik Chung | 2013-03-26 |
| 8341671 | System and method for synchroning broadcast content with supplementary information | Goon Seop Lee, Dong Hahk Lee, Jae Hwang Yu, Jong Tae Ihm, Kang Il Koh | 2012-12-25 |
| 8028910 | Tag anti-collision RFID system and method for tag identification | Kyung-Ho Seo, Jin-Hee Yoon, Joo-Mun Lee, Won Jun Lee, Ji-Hoon Myung | 2011-10-04 |
| 8013746 | Method of providing alarm service upon movement out of safety zone | Sang-Woon Kwon, Jin-Hee Yoon, Joo-Mun Lee | 2011-09-06 |
| 7978148 | Quadrifilar helical antenna | Gregory A. O'Neill, Jr., Murray Fugate, Young-Min Jo, John C. Farrar, Myung-Sung Lee +4 more | 2011-07-12 |
| 7489281 | Quadrifilar helical antenna | Gregory A. O'Neill, Jr., Murray Fugate, Young-Min Jo, John C. Farrar, Myung-Sung Lee +4 more | 2009-02-10 |
| 7245268 | Quadrifilar helical antenna | Gregory A. O'Neill, Jr., Murray Fugate, Young-Min Jo, John C. Farrar, Myung-Sung Lee +4 more | 2007-07-17 |
| 7187933 | Channel assignment method for multi-FA CDMA cellular systems | Bong Yong Song, Jeong-Chul Kim, Youl No Lee, Gab Seok Jang, Seong-Jae Lee | 2007-03-06 |
| 6999772 | Channel assignment method for multi-FA CDMA cellular systems | Bong Yong Song, Jeong-Chul Kim, Youl No Lee, Gab Seok Jang, Seong-Jae Lee | 2006-02-14 |