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, 2004
Filed:
Mar. 24, 2000
Yutaka Yamauchi, Okayama, JP;
Seiji Sakamoto, Okayama, JP;
Katsutoshi Igawa, Okayama, JP;
Shizuki Kasaoka, Okayama, JP;
Toshiro Sawada, Okayama, JP;
Koichi Shinohara, Okayama, JP;
Yuji Tsukihara, Okayama, JP;
Shinjiro Baba, Okayama, JP;
JFE Steel Corporation, , JP;
Abstract
In a method of producing coke for metallurgy by carbonizing a coal blend obtained by blending plural raw coals in an coke oven, a coal blend containing not less than 60 wt % of a medium coking coal of middle coalification degree and low fluidity having an inert component content of not less than 30% is used as a coal charged into the coke oven, whereby a great amount of raw coal of a brand being cheap and easily available can be blended in a great amount and hence coke for metallurgy having an excellent quality such as strength or the like can be produced by blending few brands of coals as compared with a coal blend of many brands.