Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6827089 | Hair braider and an auxiliary device thereof | Sun Ki Jun, Chang Kyu Cho, Jung Sun Yoon, Chool Yong Song | 2004-12-07 |
| 6819220 | Apparatus and method for exchanging message between portable devices of the same kind | Won-Il Lee, Chang Kyu Cho, Jung Ki Kim | 2004-11-16 |
| 6693627 | Apparatus and method for automatically displaying information | Chang Kyu Cho, Jae Young Kim, Tae Sin Ha | 2004-02-17 |