Patent Abstracts of Japan vol. 010, No. 348 (P-519) 22 Nov. 1986 & JPA 61 148 403 (Toray Ind Inc) 7 Jul. 1986. |
Patent Abstracts of Japan vol. 010 No. 149 (P-461) 30 May 1986 & JPA 61003338 (Toray KK) 9 Jan. 1986. |
Database WPI Week 9321, Derwent Publ.Ltd., London, GB; AN 93-173156 (21) & JPA 5107149 (Nitto Denko Corp.) 27 Apr. 1993. |
Database WPI Week 9209, Derwent Publ. Ltd., London, GB; AN 92-068198 (09) & JPA 4 011 203 (Toray Ind Inc) 16 Jan. 1992. |
Patent Abstracts of Japan vol. 011, No. 015 (P-536)16 Jan. 1987 & JPA 61189506 (Nitto Electric Ind. Co Ltd.) 23 Aug. 1986. |
Database WPI Week 9407, Derwent Publ. Ltd., London, GB; AN 94-051234 (07) & JPA 6003664 (Toyobo KK) 14 Jan. 1994. |