| Number | Date | Country | Kind |
|---|---|---|---|
| 2006-028055 | Oct 2006 | JP | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 5025526 | Ichitsubo et al. | Jun 1991 | A |
| D339577 | Velinsky | Sep 1993 | S |
| 5243730 | Ichitsubo et al. | Sep 1993 | A |
| D457887 | Kadonaga | May 2002 | S |
| D570846 | Liu et al. | Jun 2008 | S |
| D585068 | Elliott et al. | Jan 2009 | S |
| 20020170972 | Kim | Nov 2002 | A1 |