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:
Sep. 12, 2023
Filed:
Jun. 17, 2021
Applicant:
Toyo Kohan Co., Ltd., Tokyo, JP;
Inventors:
Kunihiro Yoshimura, Yamaguchi, JP;
Masanobu Matsubara, Yamaguchi, JP;
Marie Sasaki, Yamaguchi, JP;
Akihiro Yoshida, Yamaguchi, JP;
Kenji Yanada, Kanagawa, JP;
Munemitsu Hirotsu, Tokyo, JP;
Assignee:
TOYO KOHAN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D 11/02 (2006.01); C25D 11/34 (2006.01); C25D 11/36 (2006.01); C25D 9/10 (2006.01); C25D 5/48 (2006.01); B32B 9/00 (2006.01); B32B 15/18 (2006.01); B32B 15/04 (2006.01); C23C 28/00 (2006.01); C25D 9/06 (2006.01); C25D 7/06 (2006.01); C25D 5/12 (2006.01); C25D 5/10 (2006.01); B32B 9/04 (2006.01);
U.S. Cl.
CPC ...
C25D 9/10 (2013.01); B32B 9/00 (2013.01); B32B 15/04 (2013.01); B32B 15/18 (2013.01); C23C 28/00 (2013.01); C23C 28/322 (2013.01); C23C 28/34 (2013.01); C23C 28/345 (2013.01); C25D 5/10 (2013.01); C25D 5/12 (2013.01); C25D 5/48 (2013.01); C25D 7/0614 (2013.01); C25D 9/06 (2013.01); C25D 11/36 (2013.01); B32B 9/041 (2013.01);
Abstract
There is provided a surface-treated steel sheet () comprising: a tin-plated steel sheet () obtained by tin-plating a steel sheet (); a phosphate compound layer () containing tin phosphate formed on the tin-plated steel sheet (); and an aluminum-oxygen compound layer () formed on the phosphate compound layer (), a main constituent of the aluminum-oxygen compound layer being an aluminum-oxygen compound.