Number | Date | Country | Kind |
---|---|---|---|
1-225046 | Sep 1989 | JPX | |
1-225047 | Sep 1989 | JPX | |
1-338296 | Dec 1989 | JPX | |
1-338297 | Dec 1989 | JPX | |
2-199006 | Jul 1990 | JPX | |
2-199007 | Jul 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4275135 | Tomonaga | Jun 1981 | |
4424267 | Kondo et al. | Jan 1984 | |
4658756 | Ito et al. | Apr 1987 | |
4740439 | Tachikawa et al. | Apr 1988 | |
4985330 | Tsuchiya et al. | Jan 1991 |
Number | Date | Country |
---|---|---|
207324 | Jan 1987 | EPX |
2931279 | Apr 1980 | DEX |
3029837 | Feb 1981 | DEX |
Entry |
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Patent Abstracts of Japan, vol. 6, No. 162 (P-137) [1040], Aug. 25, 1982. |
Patent Abstracts of Japan, vol. 8, No. 183 (P-296) [1620], Aug. 23, 1984. |
Patent Abstracts of Japan, vol. 11, No. 211 (P-594) [2658], Jul. 9, 1987. |
Patent Abstracts of Japan, vol. 12, No. 468 (P-797) [3315], Dec. 18, 1988. |