| Number | Name | Date | Kind |
|---|---|---|---|
| D324234 | Tanaka | Feb 1992 | |
| D330723 | Mitsushima et al. | Nov 1992 | |
| D333316 | Ishizawa | Feb 1993 | |
| D340471 | Tamamoto | Oct 1993 | |
| D343190 | Ishizawa et al. | Jan 1994 | |
| D376384 | Woel-Fang | Dec 1996 | |
| D378598 | Chiba et al. | Mar 1997 | |
| D379195 | Stanton | May 1997 | |
| D379469 | Nobata | May 1997 | |
| D379827 | Andre | Jun 1997 | |
| D386515 | Sommerville et al. | Nov 1997 | |
| D388455 | Tanabe | Dec 1997 | |
| D395332 | Leong et al. | Jun 1998 | |
| 5707162 | Kasai et al. | Jan 1998 |