Patent Abstracts of Japan; vol. 1998, No. 10, Aug. 31, 1998 & JP 10 114038 A (Toray Ind. Inc.), May 6, 1998 *abstract*. |
Database WPI; Section Ch, Week 198533; Derwent Publications Ltd., London, GB; AN 1985-200964; XP002163231 & JP 60 127523 A (Toray Ind. Inc.), Jul. 8, 1985 *abstract*. |
Patent Abstracts of Japan; vol. 011, No. 097 (P-560), Mar. 26, 1987 & JP 61 246919 A (Toray Ind. Inc.), Nov. 4, 1986 *abstract*. |
Patent Abstracts of Japan; vol. 009, No. 072 (P-345), Apr. 2, 1985 & JP 59 203237 A (Matsushita Denki Sangyo KK), Nov. 17, 1984 *abstract*. |