| Number | Date | Country | Kind |
|---|---|---|---|
| 2007-002909 | Feb 2007 | JP | national |
| Number | Name | Date | Kind |
|---|---|---|---|
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| D339598 | Shimizu | Sep 1993 | S |
| 5790910 | Haskin | Aug 1998 | A |
| D476671 | van Schaik et al. | Jul 2003 | S |
| 6830387 | Rife | Dec 2004 | B2 |
| D532806 | Cheng | Nov 2006 | S |
| D540361 | Yamakawa | Apr 2007 | S |
| D556805 | Kuroda | Dec 2007 | S |