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:
Sep. 15, 2026

Filed:

Nov. 21, 2022
Applicants:

Posco Co., Ltd, Pohang-si, KR;

Noroo Coil Coatings Co., Ltd., Pohang-Si, KR;

Inventors:

Soo-Hyoun Cho, Gwangyang-si, KR;

Dong-Yun Kim, Anyang-si, KR;

Chang-Hoon Choi, Gwangyang-si, KR;

Assignees:

POSCO CO., LTD, Pohang-si, KR;

NOROO COIL COATINGS CO., LTD., Pohang-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 28/02 (2006.01); C23C 2/12 (2006.01); C23C 2/28 (2006.01);
U.S. Cl.
CPC ...
C23C 2/12 (2013.01); C23C 2/28 (2013.01); C23C 28/021 (2013.01);
Abstract

The present invention relates to a composition for surface treatment to improve the corrosion resistance, environmental stability, and the like of a metal material, in particular, a hot-dip galvanized steel sheet used for construction materials, a ternary hot-dip galvanized steel sheet that is surface-treated using the composition, and a method for manufacturing the same.


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