Number | Date | Country | Kind |
---|---|---|---|
1-341811 | Dec 1989 | JPX | |
1-341812 | Dec 1989 | JPX | |
1-341813 | Dec 1989 | JPX | |
2-12454 | Jan 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4474847 | Schroder et al. | Oct 1984 | |
4664952 | Arai et al. | May 1987 | |
4733247 | Arai et al. | Mar 1988 | |
4758461 | Akiya et al. | Jul 1988 | |
4832984 | Hasegawa et al. | May 1989 | |
4956223 | Arai et al. | Sep 1990 | |
4965612 | Sakaki et al. | Oct 1990 |
Number | Date | Country |
---|---|---|
54-57000 | May 1979 | JPX |
54-59936 | May 1979 | JPX |
56-148585 | Nov 1981 | JPX |
60-49990 | Mar 1985 | JPX |
60-54915 | Mar 1985 | JPX |
61-57380 | Mar 1986 | JPX |
61-63526 | Apr 1986 | JPX |
63-89413 | Apr 1988 | JPX |
2210375 | Jun 1989 | GBX |
Entry |
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Patent Abstracts of Japan, vol. 9, No. 231 [M-414], with respect to Japanese Patent Document No. 60-087089 (May 16, 1985), Sep. 18, 1985. Paperchem, No. 56-12935, Institute of Paper, with respect to Japanese Patent Document No. 60-087089, May 16, 1985. |