| Number | Date | Country | Kind |
|---|---|---|---|
| 2005-025651 | Sep 2005 | JP | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| D313439 | Kohno | Jan 1991 | S |
| D390613 | Kanetsuna et al. | Feb 1998 | S |
| D411265 | Kanetsuna et al. | Jun 1999 | S |
| D478638 | Mukaida | Aug 2003 | S |
| D480117 | Mukaida | Sep 2003 | S |
| D515636 | Takahashi et al. | Feb 2006 | S |
| D518117 | Takahashi et al. | Mar 2006 | S |