| Number | Date | Country | Kind |
|---|---|---|---|
| 10-013161 | Jan 1998 | JP |
| Number | Name | Date | Kind |
|---|---|---|---|
| 4750213 | Novak | Jun 1988 | |
| 5410344 | Graves et al. | Apr 1995 | |
| 5589945 | Abecassis | Dec 1996 | |
| 6002394 | Schein et al. | Dec 1999 | |
| 6025868 | Russo | Feb 2000 | |
| 6160570 | Sitnik | Dec 2000 |
| Number | Date | Country |
|---|---|---|
| 2-310877 | Dec 1990 | JP |
| 3-80782 | Apr 1991 | JP |
| 8-235840 | Sep 1996 | JP |
| 9-70011 | Mar 1997 | JP |
| 9-182019 | Jul 1997 | JP |
| 9-200687 | Jul 1997 | JP |
| 9-312811 | Dec 1997 | JP |
| Entry |
|---|
| Japanese Office Action issued Jan. 28, 2000 a related application and English translation of revelant portions. |