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. 13, 2012
Filed:
Jan. 19, 2011
Hiroshi Ichikawa, Kitakyushu, JP;
Tetsuharu Ibaraki, Kimitsu, JP;
Shoji Imura, Kimitsu, JP;
Hiroshi Oda, Kimitsu, JP;
Yoichi Abe, Futtsu, JP;
Shigeki Takahashi, Futtsu, JP;
Nobuyuki Kanemori, Futtsu, JP;
Satoshi Suzuki, Futtsu, JP;
Hiroshi Ichikawa, Kitakyushu, JP;
Tetsuharu Ibaraki, Kimitsu, JP;
Shoji Imura, Kimitsu, JP;
Hiroshi Oda, Kimitsu, JP;
Yoichi Abe, Futtsu, JP;
Shigeki Takahashi, Futtsu, JP;
Nobuyuki Kanemori, Futtsu, JP;
Satoshi Suzuki, Futtsu, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
A method of reduction treatment of metal oxides characterized by using as a material a powder containing metal oxides and containing alkali metals and halogen elements and further, in accordance with need, carbon, mixing the material with water to produce a slurry, then dehydrating this and charging the dehydrated material, mixed with another material in accordance with need, into a rotary hearth type reduction furnace for reduction.