WO9952159-A2  PATENT ABSTRACTS OF JAPAN vol. 018, no. 020 (E-1489), 13. Januar 1994 (1994-01-13) & JP 05 258756 A (HONDA MOTOR CO LTD), 8. Oktober 1993 (1993-10-08) -& CHEMICAL ABSTRACTS, vol. 120, no. 6, 7. Februar 1994 (1994-02-07) Columbus, Ohio, US; abstract no. 58555, KATO: "Surface treatment of electrolyte membranes for fuel cells" XP002120963;  ZYLKA D ET AL: "PLASMA-ETCHING OF NAFION AND DEPOSITION OF ELECTROCATALYSTS BY MOPECVD" BERICHTE DER BUNSEN-GESELLSCHAFT FUR PHYSIKALISCHE CHEMIE, Bd. 95, Nr. 11, 1. November 1991 (1991-11-01), Seiten 1553-1558, XP000310555 ISSN: 0005-9021;  PATENT ABSTRACTS OF JAPAN vol. 1996, no. 10, 31. Oktober 1996 (1996-10-31) & JP 08 148176 A (TOYOTA MOTOR CORP;TOYODA GOSEI CO LTD), 7. Juni 1996 (1996-06-07);  PATENT ABSTRACTS OF JAPAN vol. 014, no. 244 (E-0932), 24. Mai 1990 (1990-05-24) & JP 02 068861 A (MATSUSHITA ELECTRIC IND CO LTD), 8. Maerz 1990 (1990-03-08) -& CHEMICAL ABSTRACTS, vol. 113, no. 6, 6. August 1990 (1990-08-06) Columbus, Ohio, US; abstract no. 43876, YANAGIHARA: "Liquid fuel cell" XP002120956;  PATENT ABSTRACTS OF JAPAN vol. 007, no. 017 (E-154), 22. Januar 1983 (1983-01-22) & JP 57 174867 A (TORAY KK), 27. Oktober 1982 (1982-10-27) -& DATABASE WPI Derwent Publications Ltd., London, GB; AN 1982-05358J XP002120958 -& CHEMICAL ABSTRACTS, vol. 98, no. 20, 16. Mai 1983 (1983-05-16) Columbus, Ohio, US; abstract no. 163975, HIROSE SHIYOUICHI: "Ion exchange membranes" XP002120957;  PATENT ABSTRACTS OF JAPAN vol. 014, no. 244 (E-0932), 24. Mai 1990 (1990-05-24)&JP 02 068861 A (MATSUSHITA ELECTRIC IND CO LTD), 8. Maerz 1990 (1990-03-08) -&CHEMICAL ABSTRACTS, vol. 113, no. 6, 6. August 1990 (1990-08-06) Columbus, Ohio, US; abstract no. 43876, YANAGIHARA: "Liquid fuel cell" XP002120956;  PATENT ABSTRACTS OF JAPAN vol. 007, no. 017 (E-154), 22. Januar 1983 (1983-01-22)&JP 57 174867 A (TORAY KK), 27. Oktober 1982 (1982-10-27) -&DATABASE WPI Derwent Publications Ltd., London, GB; AN 1982-05358J XP002120958 -&CHEMICAL ABSTRACTS, vol. 98, no. 20, 16. Mai 1983 (1983-05-16) Columbus, Ohio, US; abstract no. 163975, HIROSE SHIYOUICHI: "Ion exchange membranes" XP002120957;  PATENT ABSTRACTS OF JAPAN vol. 1996, no. 10, 31. Oktober 1996 (1996-10-31)&JP 08 148176 A (TOYOTA MOTOR CORP;TOYODA GOSEI CO LTD), 7. Juni 1996 (1996-06-07);  PATENT ABSTRACTS OF JAPAN vol. 018, no. 020 (E-1489), 13. Januar 1994 (1994-01-13)&JP 05 258756 A (HONDA MOTOR CO LTD), 8. Oktober 1993 (1993-10-08) -&CHEMICAL ABSTRACTS, vol. 120, no. 6, 7. Februar 1994 (1994-02-07) Columbus, Ohio, US; abstract no. 58555, KATO: "Surface treatment of electrolyte membranes for fuel cells" XP002120963