Number | Date | Country | Kind |
---|---|---|---|
3-153038 | Jun 1991 | JPX | |
3-153117 | Jun 1991 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4294950 | Kato | Oct 1981 | |
4311738 | Chi | Jan 1982 | |
4338375 | Hashimoto et al. | Jul 1982 | |
4980401 | Hinden | Dec 1990 | |
5013788 | Nagashima et al. | May 1991 | |
5134191 | Takarada et al. | Jul 1992 |
Number | Date | Country |
---|---|---|
0379343 | Jul 1990 | EPX |
2449117 | Sep 1980 | FRX |
Entry |
---|
Chemical Abstracts of Japan, vol. 115, No. 14, Oct. 7, 1991, of JP-A-3 068 901 (Toray Industries) Mar. 25, 1991. |