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:
Jun. 03, 2014
Filed:
Aug. 25, 2011
Applicants:
Hsin-pei Chang, New Taipei, TW;
Wen-rong Chen, New Taipei, TW;
Huann-wu Chiang, New Taipei, TW;
Cheng-shi Chen, New Taipei, TW;
Ying-ying Wang, Shenzhen, CN;
Inventors:
Hsin-Pei Chang, New Taipei, TW;
Wen-Rong Chen, New Taipei, TW;
Huann-Wu Chiang, New Taipei, TW;
Cheng-Shi Chen, New Taipei, TW;
Ying-Ying Wang, Shenzhen, CN;
Assignees:
Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Shenzhen, CN;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/04 (2006.01); C23C 14/14 (2006.01); C23C 14/08 (2006.01); C23C 14/35 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for surface treating iron-based alloy includes providing a substrate made of iron-based alloy. A chromium layer is then formed on the substrate by vacuum sputtering. A silicon oxide layer, an alumina layer, and a boron nitride layer are formed in that order by vacuum evaporation.