Electronic device including metal housing
US12150263B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2022 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Apr 29, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1259
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An electronic device is provided. The electronic device includes a housing that forms a portion of an outer surface of the electronic device and a display disposed in the housing and visually exposed through one side of the housing. The housing includes a first portion containing a metallic material, and the first portion includes a base material layer made of the metallic material, a first film layer that is disposed adjacent to a surface of the housing and that contains oxide of the metallic material, and a second film layer that is disposed between the base material layer and the first film layer and that contains oxide of the metallic material. The first film layer includes a first pore structure that extends in a direction substantially perpendicular to a surface of the first film layer, and the second film layer includes a second pore structure that is at least partially in fluid communication with the first pore structure and that extends in a radial shape toward the base material layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.