The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2021
Filed:
Sep. 18, 2018
Applicant:
Guangdong Oppo Mobile Telecommunications Corp., Ltd., Guangdong, CN;
Inventors:
Mingren Chen, Dongguan, CN;
Tibo Hou, Dongguan, CN;
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23F 1/00 (2006.01); H05K 5/04 (2006.01); C25D 11/12 (2006.01); H04M 1/02 (2006.01); C23C 28/00 (2006.01); C25D 11/16 (2006.01); C25D 11/24 (2006.01); G06F 1/16 (2006.01); H01L 21/02 (2006.01); C25D 11/30 (2006.01);
U.S. Cl.
CPC ...
H05K 5/04 (2013.01); C23C 28/00 (2013.01); C25D 11/12 (2013.01); C25D 11/16 (2013.01); C25D 11/24 (2013.01); G06F 1/1626 (2013.01); G06F 1/1656 (2013.01); H01L 21/0223 (2013.01); H04M 1/0202 (2013.01); H04M 1/0283 (2013.01); C25D 11/243 (2013.01); C25D 11/30 (2013.01);
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.