| Number | Date | Country | Kind |
|---|---|---|---|
| 6-106095 | Apr 1994 | JPX |
| Number | Name | Date | Kind |
|---|---|---|---|
| 4376438 | Straube et al. | Mar 1983 | |
| 4433680 | Yoon | Feb 1984 | |
| 4499896 | Heinecke | Feb 1985 | |
| 4574793 | Lee et al. | Mar 1986 | |
| 4628917 | Campagna, Jr. et al. | Dec 1986 | |
| 4638795 | Richter et al. | Jan 1987 | |
| 4667661 | Scholz et al. | May 1987 | |
| 4690842 | Kammerer et al. | Sep 1987 | |
| 4856502 | Ersfeld et al. | Aug 1989 | |
| 4888225 | Sandvig et al. | Dec 1989 | |
| 4899738 | Parker | Feb 1990 | |
| 4934356 | Klintworth, Jr. | Jun 1990 | |
| 5027803 | Scholz et al. | Jul 1991 | |
| 5176621 | Shulz | Jan 1993 | |
| 5324252 | Libbey et al. | Jun 1994 |
| Number | Date | Country |
|---|---|---|
| 59-13216 | Mar 1984 | JPX |
| 61-41465 | Feb 1986 | JPX |
| 1-175854 | Jul 1989 | JPX |
| WO8908463 | Sep 1989 | WOX |
| Entry |
|---|
| English Summary of Japanese Examined Patent Application Publication No. Sho 59-13216. |
| English Summary of Japanese Unexamined Patent Application Publication No. Sho 61-41465. |
| English Summary of Japanese Unexamined Patent Application Publication No. Hei 1-175854. |