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1. (IN3857/CHENP/2010) METHOD OF FABRICATING A MOLD AND METHOD OF PRODUCING AN ANTIREFLECTION FILM USING THE MOLD

Office : India
Application Number: 3857/CHENP/2010 Application Date: 22.06.2010
Publication Number: 3857/CHENP/2010 Publication Date: 10.12.2010
Publication Kind : A
Prior PCT appl.: Application Number:PCTJP09007140 ; Publication Number:WO2010073636 Click to see the data
IPC:
C23F 17/00
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
F
NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES; INHIBITING CORROSION OF METALLIC MATERIAL; INHIBITING INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25247
17
Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25247
Applicants: SHARP KABUSHIKI KAISHA
Inventors: IHARA ICHIRO
Priority Data: 2008-333674 26.12.2008 JP
Title: (EN) METHOD OF FABRICATING A MOLD AND METHOD OF PRODUCING AN ANTIREFLECTION FILM USING THE MOLD
Abstract:
(EN) A motheye mold fabrication method of the present invention includes the steps of: (a) preparing an A1 base in which an Al content is less than 99.99 mass%; (b) partially anodizing the Al base to form a porous alumina layer which has a plurality of very small recessed portions; (c) after step (b), allowing the porous alumina layer to be in contact with an etchant which contains an anodic inhibitor, thereby enlarging the plurality of very small recessed portions of the porous alumina layer; and (d) after step (c) , further anodizing the A1 base to grow the plurality of very small recessed portions.
Also published as:
JP2010168664EP2377970EP2383372US20100283165JP4531131JPWO2010073636
US20110012272CN102027160BRPI0906259WO/2010/073636