| Number | Date | Country | Kind |
|---|---|---|---|
| 97-22290 | Oct 1997 | KRX |
| Number | Name | Date | Kind |
|---|---|---|---|
| D263142 | Nishi et al. | Feb 1982 | |
| D264978 | Ohno | Jun 1982 | |
| D308072 | Salmonson | May 1990 | |
| D322275 | Takeda et al. | Dec 1991 | |
| D358414 | Taked | May 1995 | |
| D359951 | Nair et al. | Jul 1995 | |
| D387378 | Sugimoto | Dec 1997 |