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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 11078590 B1

PDFFull Text
Date of Patent:
Aug. 03, 2021

Filed:

Jun. 15, 2018

Plated steel

Applicant:

Nippon Steel Corporation, Tokyo, JP;

Inventors:

Takashi Futaba, Tokyo, JP;

Kiyokazu Ishizuka, Tokyo, JP;

Fumio Shibao, Tokyo, JP;

Ikuo Kikuchi, Tokyo, JP;

Hidetoshi Shindo, Tokyo, JP;

Hiroaki Uramoto, Tokyo, JP;

Keita Katsumaru, Tokyo, JP;

Assignee:

NIPPON STEEL CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
B32B 15/01 (2006.01); B32B 15/08 (2006.01); C22C 28/00 (2006.01); C25D 5/48 (2006.01); C25D 3/22 (2006.01); C25D 3/56 (2006.01); C25D 5/36 (2006.01); C23C 28/02 (2006.01); B32B 15/04 (2006.01); B32B 15/18 (2006.01); C23C 30/00 (2006.01);
U.S. Cl.
CPC ...
C25D 5/48 (2013.01); B32B 15/013 (2013.01); B32B 15/04 (2013.01); B32B 15/043 (2013.01); B32B 15/08 (2013.01); B32B 15/18 (2013.01); C23C 28/02 (2013.01); C23C 28/023 (2013.01); C23C 28/025 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); C25D 3/22 (2013.01); C25D 3/565 (2013.01); C25D 5/36 (2013.01); Y10T 428/12361 (2015.01); Y10T 428/12396 (2015.01); Y10T 428/12451 (2015.01); Y10T 428/12472 (2015.01); Y10T 428/12556 (2015.01); Y10T 428/12569 (2015.01); Y10T 428/12799 (2015.01); Y10T 428/12951 (2015.01); Y10T 428/12972 (2015.01); Y10T 428/12979 (2015.01); Y10T 428/12993 (2015.01); Y10T 428/2495 (2015.01); Y10T 428/24967 (2015.01); Y10T 428/26 (2015.01); Y10T 428/263 (2015.01); Y10T 428/264 (2015.01); Y10T 428/265 (2015.01); Y10T 428/27 (2015.01); Y10T 428/273 (2015.01);
Abstract

A plated steel includes: a steel; a zinc based electroplated layer formed on a surface of the steel; and an organic resin coating layer formed on a surface of the zinc based electroplated layer, in which the surface of the zinc based electroplated layer has hairline extending in a predetermined direction, Ra (ML) measured on the surface of the zinc based electroplated layer is 0.10 to 0.70 μm, on the surface of the zinc based electroplated layer, a peak number PPI measured in a hairline orthogonal direction with a reference level of 10 μinch satisfies PPI≥350×Ra (MC) with respect to Ra (MC), on a surface of the organic resin coating layer, Ra (CC) satisfies Ra (CC)/Ra (CL)≥1.10 with respect to Ra (CL), and Ra (CC) satisfies Ra (CC)<Ra (MC) with respect to Ra (MC).

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