| Number | Name | Date | Kind |
|---|---|---|---|
| D330457 | Hsieh | Oct 1992 | |
| D331661 | Roncato | Dec 1992 | |
| D333914 | Van Hove et al. | Mar 1993 | |
| D337434 | Fukuda | Jul 1993 | |
| D348780 | Masaru | Jul 1994 | |
| D352168 | Aumasson | Nov 1994 | |
| D352826 | Rao | Nov 1994 | |
| D373246 | Stokes et al. | Sep 1996 | |
| 4928800 | Green et al. | May 1990 | |
| 5111918 | Bako et al. | May 1992 |