| Number | Name | Date | Kind |
|---|---|---|---|
| D342100 | Chan | Dec 1993 | |
| D349527 | Date | Aug 1994 | |
| D353410 | Chan | Dec 1994 | |
| D356607 | Feng | Mar 1995 | |
| D357286 | Feng | Apr 1995 | |
| D363321 | Hsien | Oct 1995 | |
| 5184830 | Okada et al. | Feb 1993 |
| Number | Date | Country |
|---|---|---|
| 6285259 | Oct 1994 | JPX |
| Entry |
|---|
| Hong Kong Enterprise, Oct. 1994, p. 137. |
| Hong Kong Enterprise, Oct. 1994, p. 245. |