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:
Dec. 14, 2021
Filed:
Mar. 30, 2020
Applicant:
Nippon Steel Corporation, Tokyo, JP;
Inventors:
Moritoshi Mizutani, Kimitsu, JP;
Tsunehisa Nishimura, Sodegaura, JP;
Assignee:
NIPPON STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21B 13/02 (2006.01); C22B 1/16 (2006.01); C21B 13/00 (2006.01);
U.S. Cl.
CPC ...
C21B 13/02 (2013.01); C21B 13/0046 (2013.01); C22B 1/16 (2013.01); Y02P 10/134 (2015.11);
Abstract
A raw material for direct reduction which is reduced in a shaft furnace includes a raw material, and a coating layer which coats the raw material and has a porosity of 20 volume % or more.