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.:

US 8257808 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 04, 2012

Filed:

Sep. 28, 2010
Applicants:

Chwan-hwa Chiang, Taipei Hsien, TW;

Qi-jian Du, Shenzhen, CN;

Inventors:

Chwan-Hwa Chiang, Taipei Hsien, TW;

Qi-Jian Du, Shenzhen, CN;

Assignees:

Shenzhen Futaihong Precision Industry Co., Ltd., ShenZhen, Guangdong Province, CN;

FIH (Hong Kong) Limited, Kowloon, HK;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B28B 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An electronic device housing includes a substrate and a metallic coating formed on the substrate. The substrate has a surface roughness of less than 60 nm. The metallic coating includes a plurality of first layers and a plurality of second layers. Each one of the first layers and each one of the second layers are alternately deposited on each other. The first layer and the second layer may be respectively tantalum pentoxide layer and silicon dioxide layer or may be respectively niobium pentoxide layer and zirconium dioxide layer.


Find Patent Forward Citations

Chiang, Chwan-Hwa. (2012). Electronic device housing (U.S. Patent No. 8257808). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8257808

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