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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.:

US 12559830 B1

PDFFull Text
Date of Patent:
Feb. 24, 2026

Filed:

Nov. 22, 2022

Surface-treated steel

Applicant:

Nippon Steel Corporation, Tokyo, JP;

Inventors:

Yoshikatsu Nishida, Tokyo, JP;

Atsuo Shimizu, Tokyo, JP;

Shin Ueno, Tokyo, JP;

Hiromasa Shoji, Tokyo, JP;

Assignee:

NIPPON STEEL CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
C23C 8/52 (2006.01); B32B 15/01 (2006.01); B32B 15/04 (2006.01); B32B 15/08 (2006.01); B32B 15/18 (2006.01); C23C 2/06 (2006.01); C23C 2/26 (2006.01); C23C 2/40 (2006.01); C23C 18/12 (2006.01); C23C 22/36 (2006.01); C23C 22/44 (2006.01); C23C 28/00 (2006.01); C25D 3/22 (2006.01); C25D 5/48 (2006.01); C25D 5/50 (2006.01);
U.S. Cl.
CPC ...
C23C 8/52 (2013.01); B32B 15/013 (2013.01); B32B 15/04 (2013.01); B32B 15/08 (2013.01); B32B 15/18 (2013.01); C23C 2/06 (2013.01); C23C 2/26 (2013.01); C23C 2/40 (2013.01); C23C 18/122 (2013.01); C23C 22/36 (2013.01); C23C 22/44 (2013.01); C23C 28/00 (2013.01); C25D 3/22 (2013.01); C25D 5/48 (2013.01); C25D 5/50 (2013.01); C23C 2222/20 (2013.01); Y10T 428/12556 (2015.01); Y10T 428/12569 (2015.01); Y10T 428/12799 (2015.01); Y10T 428/31678 (2015.04);
Abstract

The surface-treated steel includes: a steel; a plated layer containing Zn or a Zn alloy formed on a surface of the steel; and a chemical conversion coating film formed on a surface of the plated layer, wherein the chemical conversion coating film contains an organosilicon compound having a siloxane bond, and P and F, and when the abundance ratio of an alkylene group and a siloxane bond in the organosilicon compound is measured by Fourier transform infrared spectroscopy (FT-IR), a ratio A1/A2 of a peak value A1 of an absorbance at 2,800 to 3,000 cmindicating the alkylene group to a peak value A2 of an absorbance at 1,030 to 1,200 cmindicating the siloxane bond is 0.10 to 0.75.

Find Patent Forward Citations

Nishida, Yoshikatsu. (2026). Surface-treated steel (U.S. Patent No. 12559830). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12559830

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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