| Number | Name | Date | Kind |
|---|---|---|---|
| D451884 | Hisatomi et al. | Dec 2001 | S |
| D497598 | Kimura et al. | Oct 2004 | S |
| D500738 | Obikane et al. | Jan 2005 | S |
| D506442 | Obikane et al. | Jun 2005 | S |
| D528987 | Peng | Sep 2006 | S |
| D561696 | Chen et al. | Feb 2008 | S |
| D561697 | Chen et al. | Feb 2008 | S |
| D562244 | Peng | Feb 2008 | S |