Number | Date | Country | Kind |
---|---|---|---|
1-185071 | Jul 1989 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4727185 | Shoji et al. | Feb 1988 | |
4851583 | Bockowski et al. | Jul 1988 | |
4900843 | Kitai et al. | Feb 1990 |
Number | Date | Country |
---|---|---|
220835 | May 1987 | EPX |
318634 | Jul 1989 | EPX |
Entry |
---|
Patent Abstract of JP, vol. 1, No. 46, p. 156, JP-5520705. |
Patent Abstract of JP, vol. 10, No. 328, JP-61137838. |
Patent Abstract of JP, vol. 11, No. 202, JP-6226238. |
Peter Bamfield et al., Synthesis Communications, p. 538 (1978). |