Number | Date | Country | Kind |
---|---|---|---|
62-214744 | Aug 1987 | JPX | |
62-299549 | Nov 1987 | JPX | |
63-154328 | Jun 1988 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4816063 | Yamaguchi et al. | Mar 1989 |
Number | Date | Country |
---|---|---|
0273417 | Jul 1988 | EPX |
Entry |
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Patent Abstracts of Japan, vol. 11, No. 167 (C-425) [2614], 28th May 1987; & JP-A-62 00 091 (Kumiai Chem. Ind.) 06-01-1987. |