EP887306-A1  PATENT ABSTRACTS OF JAPAN vol. 015, no. 254 (E-1083), 27. Juni 1991 & JP 03 081969 A (FUJI ELECTRIC CO LTD), 8. April 1991;  PATENT ABSTRACTS OF JAPAN vol. 095, no. 002, 31. M rz 1995 & JP 06 305702 A (MITSUBISHI GAS CHEM CO INC), 1. November 1994;  PATENT ABSTRACTS OF JAPAN vol. 095, no. 002, 31. M{rz 1995 & JP 06 305702 A (MITSUBISHI GAS CHEM CO INC), 1. November 1994;  PATENT ABSTRACTS OF JAPAN vol. 096, no. 009, 30. September 1996 & JP 08 119602 A (AQUEOUS RES:KK), 14. Mai 1996;  PATENT ABSTRACTS OF JAPAN vol. 095, no. 002, 31. Maerz 1995 & JP 06 305702 A (MITSUBISHI GAS CHEM CO INC), 1. November 1994;  PATENT ABSTRACTS OF JAPAN vol. 015, no. 254 (E-1083), 27. Juni 1991&JP 03 081969 A (FUJI ELECTRIC CO LTD), 8. April 1991;  PATENT ABSTRACTS OF JAPAN vol. 096, no. 009, 30. September 1996&JP 08 119602 A (AQUEOUS RES:KK), 14. Mai 1996;  PATENT ABSTRACTS OF JAPAN vol. 095, no. 002, 31. Maerz 1995&JP 06 305702 A (MITSUBISHI GAS CHEM CO INC), 1. November 1994DE19727588-C1  JP 08119602 A. Patents Abstracts of Japan, herausgegeben am 14.05.1996;  JP 58-1 08 291 A. In: Patents Abstracts of Japan, Vol.7 (1983) No.209 (C-186)EP887306-B1  PATENT ABSTRACTS OF JAPAN vol. 015, no. 254 (E-1083), 27. Juni 1991 & JP 03 081969 A (FUJI ELECTRIC CO LTD), 8. April 1991;  PATENT ABSTRACTS OF JAPAN vol. 095, no. 002, 31. Maerz 1995 & JP 06 305702 A (MITSUBISHI GAS CHEM CO INC), 1. November 1994;  PATENT ABSTRACTS OF JAPAN vol. 096, no. 009, 30. September 1996 & JP 08 119602 A (AQUEOUS RES:KK), 14. Mai 1996US6241792-B1  Patent Abstracts of Japan, C-186, Sep.14, 1983, vol. 7/No. 209, JP 58-108291 (A), Jun. 28, 1983, Ikuo Matsumoto.;  Patent Abstracts of Japan, JP 03081969, Apr. 8, 1991, Kumagai Satoshi.;  Patent Abstracts of Japan, JP 06305702, Nov. 1, 1994, Yamamoto Kazuo.;  Patent Abstracts of Japan, JP 08119602 A, Oct. 28, 1994, Tanizaki Katsuji et al.US6969493-B2  Patent Abstracts of Japan, C-186, Sep. 14, 1983, vol. 7/No. 209, JP 58-108291 (A), Jun. 28, 1983, Ikuo Matsumoto.;  Patent Abstracts of Japan, JP 08119602 A, Oct. 28, 1994, Tanizaki Katsuji et al.