| Number | Date | Country | Kind |
|---|---|---|---|
| 2007-015838 | Jun 2007 | JP | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 6297598 | Wang et al. | Oct 2001 | B1 |
| 6777719 | Fujii | Aug 2004 | B1 |
| D497883 | Wedig et al. | Nov 2004 | S |
| D506732 | Wang et al. | Jun 2005 | S |
| 7049639 | Wang et al. | May 2006 | B2 |
| 20050128767 | Wang et al. | Jun 2005 | A1 |
| 20060113906 | Ogawa | Jun 2006 | A1 |
| 20060214273 | Wang et al. | Sep 2006 | A1 |
| 20070096114 | Aoki et al. | May 2007 | A1 |
| 20070295970 | Chang | Dec 2007 | A1 |