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.

Date of Patent:
Dec. 08, 2020

Filed:

Mar. 11, 2015
Applicants:

Toyo Seikan Co., Ltd., Tokyo, JP;

Toyo Kohan Co., Ltd., Tokyo, JP;

Inventors:

Mitsuhide Aihara, Yokohama, JP;

Wataru Kurokawa, Yokohama, JP;

Munemitsu Hirotsu, Yokohama, JP;

Kunihiro Yoshimura, Kudamatsu, JP;

Satoko Harada, Kudamatsu, JP;

Kousuke Sasaki, Kudamatsu, JP;

Masahiko Matsukawa, Tokyo, JP;

Miwa Uchikawa, Tokyo, JP;

Keisuke Yoshida, Tokyo, JP;

Assignees:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 15/00 (2006.01); C25D 5/10 (2006.01); C25D 9/10 (2006.01); B32B 15/01 (2006.01); C25D 5/48 (2006.01);
U.S. Cl.
CPC ...
C25D 9/10 (2013.01); B32B 15/013 (2013.01); C25D 5/48 (2013.01);
Abstract

A surface-treated steel sheet for cans forming a coating of a compound containing chiefly Zr and containing F, the amount of Zr being 80 to 200 mg/mand the amount of F being not less than 12 mg/min the coating on the surface that becomes the outer surface side of the can. The surface-treated steel sheet is capable of effectively preventing the resin coating from peeling on the outer surface side of the can at dented portions.


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