Patent · US Active

Case, method of manufacturing the same and electronic device

US10966333B2 · kind B2 · utility

0Cited by

1References

11Claims

0Family size

Assignee

GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD. · CN

Inventors

Mingren Chen · Tangxia, CN
Tibo Hou · Dongguan, CN

Key dates

Filing date	Sep 18, 2018
Grant date	Mar 30, 2021
Priority date	—
Expiry date	Sep 18, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC25D11/30
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

This application provides a method of manufacturing a case, a case and an electronic device. This method may include providing a metal case with a surface; applying a first oxidation treatment on the surface of the metal case to form a first oxidation layer; defining a first area on the surface; removing a portion of the first oxidation layer located within the first area; applying a second oxidation treatment on the surface within the first area to form a second oxidation layer, and forming a paint layer on the second oxidation layer by spraying.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.