| Number | Date | Country | Kind |
|---|---|---|---|
| 30-2006-0019158 | May 2006 | KR | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 6122526 | Parulski et al. | Sep 2000 | A |
| D441735 | Katayama | May 2001 | S |
| D489052 | Shiraki et al. | Apr 2004 | S |
| D493779 | Lee | Aug 2004 | S |
| 6769603 | Nagai et al. | Aug 2004 | B2 |
| D504442 | Kim | Apr 2005 | S |
| 6932309 | Corey et al. | Aug 2005 | B1 |
| D509833 | Yang | Sep 2005 | S |
| D511512 | Yang | Nov 2005 | S |
| 6977625 | Zhou | Dec 2005 | B1 |
| D515099 | Lee | Feb 2006 | S |
| 7046230 | Zadesky et al. | May 2006 | B2 |