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:
Nov. 18, 2025
Filed:
Nov. 04, 2021
Posco Co., Ltd, Pohang-si, KR;
Jai-Ik Kim, Pohang-si, KR;
POSCO CO., LTD, Pohang-si, KR;
Abstract
An exemplary embodiment of the present invention provides an enamel steel sheet, including: by wt % (% by weight), 0.01 to 0.05% of C, 0.05 to 0.8% of Mn, 0.001 to 0.03% of Si, 0.03 to 0.12% of Al, 0.001 to 0.02% of P, 0.001 to 0.02% of S, 0.004% or less (excluding 0%) of N, 0.001 to 0.003% of B, 0.003% or less (excluding 0%) of O, and the balance of Fe and inevitable impurities. The enamel steel sheet according to an exemplary embodiment of the present invention includes an oxide layer in an inside direction from a surface, and a thickness of the oxide layer is 0.006 to 0.030 μm.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile