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(11)

EP 2 783 025 A2

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(88) Date of publication A3: 18.07.2013 (43) Date of publication: 01.10.2014 Bulletin 2014/40 (21) Application number: 12806173.6 (22) Date of filing: 20.11.2012

(51) International Patent Classification (IPC):  C25B 11/00(2006.01) C25C 7/06(2006.01) C25B 15/00(2006.01) (86) International application number: PCT/JP2012/080526 (87) International publication number: WO 2013/077454 (30.05.2013 Gazette 2013/22)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 21.11.2011 JP 2011253772 (71) Applicant: Industrie De Nora S.p.A. 20134 Milano (IT)	(72) Inventors: KAWAGUCHI, Nobuyuki Fujisawa-shi Kanagawa 252-0816 (JP) UENO, Kenichi Fujisawa-shi Kanagawa 252-0816 (JP) HAYASHI, Tamotsu Fujisawa-shi Kanagawa 252-0816 (JP) KAGAMI, Miho Fujisawa-shi Kanagawa 252-0816 (JP) (74) Representative: Reitstötter Kinzebach  Patentanwälte Sternwartstrasse 4 81679 München 81679 München (DE)