Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D569841 | Ear-microphone | Yang-Jic Lee, Beom-Ku Han, Chang-Soo Lee | 2008-05-27 |
| D567782 | Handsfree portable phone | Yang-Jic Lee, Beom-Ku Han, Chang-Hwan Hwang | 2008-04-29 |
| D567791 | Portable phone | Jun Kim, Beom-Ku Han, Chang-Soo Lee | 2008-04-29 |
| D555622 | Mobile phone | Beom-Ku Han, Chang-Soo Lee | 2007-11-20 |
| D555135 | Portable phone | Yang-Jic Lee, Beom-Ku Han, Chang-Hwan Hwang | 2007-11-13 |