Number | Date | Country | Kind |
---|---|---|---|
2-414430 | Dec 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4499511 | Sugaya | Feb 1985 | |
4539607 | Fujiki | Sep 1985 | |
4638384 | Stewart et al. | Jan 1987 | |
5079654 | Uno et al. | Jan 1992 |
Number | Date | Country |
---|---|---|
3-91171 | Apr 1991 | JPX |
Entry |
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Patent Abstracts of Japan, vol. 6, No. 8 (P-98) Jan. 19, 1982 & JP-A-56 134362 (Toshiba Corp.) Oct. 21, 1981. |
Patent Abstracts of Japan, vol. 6, No. 248 (P-160) Dec. 7, 1982 & JP-A-57 143770 (Hitachi Corp.) Aug. 6, 1982. |
Patent Abstracts of Japan, vol. 11, No. 173 (P-582) Jun. 4, 1987 & JP-A-62 003473 (Toshiba Corp.) Jan. 9, 1987. |
Patent Abstracts of Japan, vol. 15, No. 5 (P-1149) Jan. 8, 1991 & JP-A-2 253425 (NEC Corp.) Oct. 12, 1990. |