(19)
(11) EP 2 940 194 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
02.03.2016 Bulletin 2016/09

(43) Date of publication:
04.11.2015 Bulletin 2015/45

(21) Application number: 15722916.2

(22) Date of filing: 25.02.2015
(51) International Patent Classification (IPC): 
C25D 11/18(2006.01)
C25D 11/12(2006.01)
C25D 11/24(2006.01)
 C25D 11/04(2006.01)
C25D 11/02(2006.01)
(86) International application number:
PCT/JP2015/055400
(87) International publication number:
WO 2015/146440 (01.10.2015 Gazette 2015/39)
(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
Designated Extension States:
BA ME

(30) Priority: 27.03.2014 JP 2014065954

(71) Applicant: Suzuki Motor Corporation
Shizuoka-ken 432-8611 (JP)

(72) Inventors:
  • MURAKAMI, Haruhiko
    Shizuoka 4328611 (JP)
  • FUJITA, Masahiro
    Shizuoka 4328611 (JP)

(74) Representative: Vidon Brevets & Stratégie 
16B, rue de Jouanet BP 90333
35703 Rennes Cedex 7
35703 Rennes Cedex 7 (FR)


(56) References cited: : 
   
       


    (54) ANODIC OXIDE FILM AND METHOD FOR SEALING SAME


    (57) Provided are an anodic oxide film of an anodic oxide film of an aluminum-based material and a method for performing a sealing treatment on the anodic oxide film which can achieve both high corrosion resistance and high repairing ability. The method for performing a sealing treatment on an anodic oxide film according to the present invention comprises the steps of: applying direct current electrolysis to an aluminum-based material to form a second anodic oxide film; applying, after the step, AC-DC superimposition electrolysis to the aluminum-based material to further form a first anodic oxide film; and performing a sealing treatment on the first and second anodic oxide films with a solution containing lithium ions.