| Number | Name | Date | Kind |
|---|---|---|---|
| 6429464 | Lin | Aug 2002 | B1 |
| 6720581 | Ozawa | Apr 2004 | B2 |
| D491898 | Kamada | Jun 2004 | S |
| 20040257817 | Philipp | Dec 2004 | A1 |
| 20050242708 | Keong et al. | Nov 2005 | A1 |
| 20060001361 | Imai et al. | Jan 2006 | A1 |
| 20060157726 | Loh et al. | Jul 2006 | A1 |
| 20060220049 | Flaherty et al. | Oct 2006 | A1 |
| 20060267036 | Lee et al. | Nov 2006 | A1 |
| 20060284305 | Yen et al. | Dec 2006 | A1 |
| 20060291203 | Anandan | Dec 2006 | A1 |
| 20070029559 | Lee et al. | Feb 2007 | A1 |
| 20070029570 | Shin et al. | Feb 2007 | A1 |