| Number | Date | Country | Kind |
|---|---|---|---|
| 101301382 | Mar 2012 | TW | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 7030423 | Chang et al. | Apr 2006 | B2 |
| D536309 | Muguruma et al. | Feb 2007 | S |
| 7335522 | Wang et al. | Feb 2008 | B2 |
| 7901993 | Lin et al. | Mar 2011 | B2 |
| 7939375 | Lin et al. | May 2011 | B2 |
| 8030676 | Lin | Oct 2011 | B2 |
| 20050135105 | Teixeira et al. | Jun 2005 | A1 |
| 20110121323 | Wu et al. | May 2011 | A1 |
| 20120037939 | Urano | Feb 2012 | A1 |