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:
Feb. 14, 2017
Filed:
Jun. 23, 2011
Toshiaki Shibata, Hirakata, JP;
Yoshihito Ii, Hirakata, JP;
Hiromu Inagawa, Hirakata, JP;
C. UYEMURA & CO., LTD., Osaka-shi, JP;
FUJI ELECTRIC CO., LTD., Kawasaki-shi, JP;
Abstract
Disclosed herein is an aluminum oxide film remover for removing an oxide film on the surface of aluminum or aluminum alloy, which comprises silver ions and/or copper ions, a solubilizing agent for silver ions and/or copper ions, and a quaternary ammonium hydroxide compound, and has a pH value of 10 to 13.5. A method for surface treatment of aluminum or aluminum alloy is also disclosed, which comprises immersing a workpiece having aluminum or aluminum alloy at least on the surface thereof in the aluminum oxide film remover, and depositing the silver and/or copper contained in the remover on the surface of aluminum or aluminum alloy while removing the aluminum oxide film.