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:
Oct. 15, 2019
Filed:
May. 21, 2014
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Yoshiaki Tani, Kitakyushu, JP;
Shigeru Hirano, Kitakyushu, JP;
Akira Tachiki, Kitakyushu, JP;
Morio Yanagihara, Kitakyushu, JP;
Makoto Kawabata, Kitakyushu, JP;
Hirokazu Yokoya, Onga-gun, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
A steel sheet for containers includes a steel sheet, an underlying Ni layer formed by performing a Ni coating or a Fe—Ni alloy coating containing Ni in an amount of 5 mg/mto 150 mg/min terms of an amount of metal Ni on at least one surface of the steel sheet, a Sn coated layer formed by performing a Sn coating containing Sn in an amount of 300 mg/mto 3,000 mg/min terms of an amount of metal Sn on the underlying Ni layer and including an island-shaped Sn formed by alloying the Sn coating and at least a part of the underlying Ni layer by a reflow treatment, an oxide layer formed on the Sn coated layer and containing tin oxide, and a chemical treatment layer formed on the oxide layer and at least contains Zr in an amount of 1 mg/mto 500 mg/min terms of an amount of metal Zr and phosphate acid in an amount of 0.1 mg/mto 100 mg/min terms of an amount of P, in which the oxide layer contains tin oxide in such an amount that an amount of electricity required for reduction of the oxide layer is 0.3 mC/cmto 10 mC/cm.