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:
Dec. 10, 2024
Filed:
May. 25, 2021
Applicant:
Toyo Kohan Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
TOYO KOHAN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D 11/36 (2006.01); B65D 8/00 (2006.01); B65D 65/42 (2006.01); C25D 3/30 (2006.01); C25D 9/06 (2006.01); C25D 9/08 (2006.01);
U.S. Cl.
CPC ...
C25D 11/36 (2013.01); B65D 7/04 (2013.01); B65D 65/42 (2013.01); C25D 3/30 (2013.01); C25D 9/06 (2013.01); C25D 9/08 (2013.01);
Abstract
A surface-treated steel sheet including a tin-plated steel sheet having a tin plating on a steel sheet; a tin oxide layer formed on the tin-plated steel sheet and containing tin oxide as a main component; a composite oxide layer formed on the tin oxide layer and containing phosphoric acid and aluminum as main components; and an aluminum-oxygen compound layer formed on the composite oxide layer and containing an aluminum-oxygen compound as a main component, wherein the tin oxide layer has a thickness of 8 to 20 nm.