| Number | Date | Country | Kind |
|---|---|---|---|
| 2007-017768 | Jul 2007 | JP | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 3288114 | Ritter | Nov 1966 | A |
| D233613 | Hand, III | Nov 1974 | S |
| 3941488 | Maxwell | Mar 1976 | A |
| D258219 | Oka | Feb 1981 | S |
| D259053 | Leblond | Apr 1981 | S |
| 4453849 | Fernandez | Jun 1984 | A |
| D332627 | Anavil et al. | Jan 1993 | S |
| D335142 | Katami et al. | Apr 1993 | S |
| 6048121 | Carver | Apr 2000 | A |
| D425122 | Bardet | May 2000 | S |
| D439611 | Fukami et al. | Mar 2001 | S |
| 6368004 | Yoshida et al. | Apr 2002 | B2 |
| D501505 | Chien | Feb 2005 | S |
| 20080107469 | Yoon | May 2008 | A1 |