| Number | Date | Country | Kind |
|---|---|---|---|
| 2007-018806 | Jul 2007 | JP | national |
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| D548257 | Onuma et al. | Aug 2007 | S |
| D558246 | Hayamizu | Dec 2007 | S |
| D562373 | Nakamura | Feb 2008 | S |
| D565619 | Nasu | Apr 2008 | S |
| D568357 | Shimobayashi | May 2008 | S |
| 20050057685 | Yamaguchi | Mar 2005 | A1 |