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:
Jul. 10, 2001
Filed:
Mar. 23, 1999
Takeshi Sugiyama, Osaka, JP;
Hidetoshi Tanaka, Kakogawa, JP;
Takao Harada, Kakogawa, JP;
Sumito Hashimoto, Kakogawa, JP;
Yoshimichi Takenaka, Kakogawa, JP;
Shoji Shirouchi, Kakogawa, JP;
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Abstract
A method of producing reduced iron agglomerates capable of preventing oxidation in the surface layer of the agglomerates and obtaining reduced iron agglomerates having a high degree of metallization, by blowing a methane or methane-containing gas to the reduced iron oxide agglomerates incorporated with carbonaceous material at a surface temperature of 1150° C. or higher during movement in a moving hearth heating type furnace at the end of reduction as the final stage of the stagnation period of the agglomerates in the heating furnace.