| Number | Date | Country | Kind |
|---|---|---|---|
| 6-37702 | Dec 1994 | JPX |
| Number | Name | Date | Kind |
|---|---|---|---|
| D336645 | Saito et al. | Jun 1993 | |
| D337113 | Saito et al. | Jul 1993 | |
| D342497 | Saito et al. | Dec 1993 | |
| D342501 | Saeki et al. | Dec 1993 | |
| D342509 | Saito et al. | Dec 1993 | |
| D351155 | Usami et al. | Oct 1994 | |
| D351157 | Usami et al. | Oct 1994 | |
| D357244 | Usami et al. | Apr 1995 | |
| D357245 | Usami et al. | Apr 1995 | |
| D357472 | Usami et al. | Apr 1995 | |
| D359731 | Higashibata et al. | Jun 1995 |