Aluminum member and method of manufacturing aluminum member

US12168835B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12168835-B2
Application numberUS-202117332779-A
CountryUS
Kind codeB2
Filing dateMay 27, 2021
Priority dateNov 30, 2018
Publication dateDec 17, 2024
Grant dateDec 17, 2024

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

An example aluminum member consisting of a mother material containing aluminum or an aluminum alloy, and an anodic oxide film on the surface of the mother material, in which the arithmetical mean roughness Ra, the mean length of roughness curve elements RSm, and the Hunter whiteness of the aluminum member, measured from the surface side of the anodic oxide film, are 0.1 μm or more, 10 μm or less, and 60 to 90, respectively.

First claim

Opening claim text (preview).

What is claimed is: 1. An aluminum member consisting of: a mother material containing aluminum or an aluminum alloy; and an anodic oxide film on a surface of the mother material, wherein a thickness of the anodic oxide film is 6 to 100 μm, wherein an arithmetical mean roughness Ra, a mean length of roughness curve elements RSm, and a Hunter whiteness of the aluminum member, measured from a surface side of the anodic oxide film, are 0.1 μm or more, 10 μm or less, and 60 to 90, respectively, wherein the surface side of the anodic oxide film is opposite a side of the anodic oxide film on the surface of the mother material. 2. The aluminum member according to claim 1 , wherein a relational expression between the arithmetical mean roughness Ra and the mean length of roughness curve elements RSm satisfies 0.1≤Ra/RSm≤1.2, and the Hunter whiteness of the aluminum member, measured from the surface side of the anodic oxide film, is 70 to 90.

Assignees

Inventors

Classifications

  • all layers being formed of aluminium or aluminium alloys · CPC title

  • C25D11/06Primary

    characterised by the electrolytes used · CPC title

  • containing organic acids · CPC title

  • Producing integrally coloured layers · CPC title

  • Pretreatment {, e.g. desmutting} · CPC title

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What does patent US12168835B2 cover?
An example aluminum member consisting of a mother material containing aluminum or an aluminum alloy, and an anodic oxide film on the surface of the mother material, in which the arithmetical mean roughness Ra, the mean length of roughness curve elements RSm, and the Hunter whiteness of the aluminum member, measured from the surface side of the anodic oxide film, are 0.1 μm or more, 10 μm or les…
Who is the assignee on this patent?
Uacj Corp
What technology area does this patent fall under?
Primary CPC classification C25D11/06. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Dec 17 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).