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:
Mar. 26, 2013
Filed:
Nov. 07, 2007
Applicants:
Hidetoshi Tanaka, Shinagawa-ku, JP;
Takeshi Sugiyama, Kobe, JP;
Inventors:
Hidetoshi Tanaka, Shinagawa-ku, JP;
Takeshi Sugiyama, Kobe, JP;
Assignee:
Kobe Steel, Ltd., Kobe-shi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 1/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
Hot briquette iron includes a plurality of reduced iron particles which are bonded to each other by hot forming, wherein the reduced iron particles each have a surface region having an average carbon content of 0.1 to 2.5% by mass and a central region positioned inside the surface region and having an average carbon content higher than that of the surface region.