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. 03, 2013
Filed:
Mar. 09, 2010
Applicants:
Seigi Aoyama, Kitaibaraki, JP;
Toru Sumi, Hitachi, JP;
Inventors:
Seigi Aoyama, Kitaibaraki, JP;
Toru Sumi, Hitachi, JP;
Assignee:
Hitachi Cable, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D 11/00 (2006.01); C22B 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of making a copper wire rod with low semi-softening temperature includes melting a raw material copper to have a copper melt, adjusting concentrations of oxygen and sulfur included in the copper melt to be not more than 20 ppm and not more than 6 ppm, respectively, continuously casting the adjusted copper melt at temperature not higher than 1120° C. to have a cast bar, and hot-rolling the cast bar in a temperature range of 850° C. to 550° C.