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:
Sep. 29, 2020
Filed:
Mar. 01, 2018
Nippon Steel Nisshin Co., Ltd., Tokyo, JP;
Shin Ueno, Tokyo, JP;
Tadashi Nakano, Tokyo, JP;
NIPPON STEEL NISSHIN CO., LTD., Tokyo, JP;
Abstract
The present invention provides a method for evaluating the quality of steam-treated products, allowing easy, quick and precise evaluation of the quality of oxide films in steam-treated products such as black coated steel sheets. Specifically, the present invention provides a method for evaluating the quality of steam-treated products with a surface oxide film formed during steam treatment, wherein test pieces () are cut out from said steam-treated products to measure the amount of oxygen in said test pieces () as a basis for evaluating the brightness of the surface(s) of said test pieces and/or the thickness of the oxide film of said test pieces.