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:
Aug. 15, 2023
Filed:
Jul. 07, 2020
Applicant:
Nihon Parkerizing Co., Ltd., Tokyo, JP;
Inventors:
Yukihiro Ueda, Tokyo, JP;
Ryoko Katsuraya, Tokyo, JP;
Assignee:
Nihon Parkerizing Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 22/57 (2006.01); C23C 22/07 (2006.01); C23C 22/78 (2006.01); C23C 22/22 (2006.01); C23C 22/05 (2006.01);
U.S. Cl.
CPC ...
C23C 22/78 (2013.01); C23C 22/07 (2013.01); C23C 22/22 (2013.01);
Abstract
This invention provides a technique that enables a chemical conversion coating excellent in adhesiveness and corrosion resistance to be formed on or over a magnesium material or magnesium alloy material and use of the technique. The above object is achieved by performing a surface conditioning treatment by using a surface conditioning agent that includes specific dibasic calcium phosphate particles before performing a chemical conversion for forming the chemical conversion coating.