Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7201101 | Punch capable of punching an object at four directions | — | 2007-04-10 |
| D532047 | Craft punch | — | 2006-11-14 |
| D531674 | Craft punch | — | 2006-11-07 |
| D511356 | Craft punch | — | 2005-11-08 |
| 6752058 | Punching device for edge decoration | — | 2004-06-22 |
| 6752057 | Device for blanking out patterns | — | 2004-06-22 |
| 6742431 | Punching device for edge decoration having rotation unit | — | 2004-06-01 |
| 6615720 | Brayer ball | — | 2003-09-09 |
| 6520081 | Ball brayer | — | 2003-02-18 |
| 6209434 | Paper sheet decorative punching device | Ok-Hwan Kim | 2001-04-03 |
| D419178 | Paper impression device | Ok-Hwan Kim | 2000-01-18 |
| D407752 | Paper decoration punching device | Ok-Hwan Kim | 1999-04-06 |