| Number | Date | Country | Kind |
|---|---|---|---|
| 10-096898 | Mar 1998 | JP |
| Number | Name | Date | Kind |
|---|---|---|---|
| 5477264 | Sarbadhikari et al. | Dec 1995 | A |
| Number | Date | Country |
|---|---|---|
| 0506556 | Sep 1992 | EP |
| 2-20179 | Jan 1990 | JP |
| 3-201688 | Sep 1991 | JP |
| 4-321390 | Nov 1992 | JP |
| 4328974 | Nov 1992 | JP |
| 5-56382 | Mar 1993 | JP |
| 5-341924 | Dec 1993 | JP |
| 6-62337 | Mar 1994 | JP |
| 6-350816 | Dec 1994 | JP |
| 7-23357 | Jan 1995 | JP |
| 7-298191 | Nov 1995 | JP |
| 8-76946 | Mar 1996 | JP |
| 9-97490 | Apr 1997 | JP |
| 10-51582 | Feb 1998 | JP |
| 10-65948 | Mar 1998 | JP |
| Entry |
|---|
| RD 363028A, Jun. 1994, Derwent Information LTD.* |
| Japanese Office Action issued May 24, 2000 in a related application with English translation of relevant portions. |
| Statement of Opposition to Patent No. 3169888 dated Nov. 28, 2001 (w/ English translation of relevant portions). |
| Notice of the Reason of Cancellation filed Feb. 5, 2002 (w/ English translation of relevant portions). |