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:
Apr. 15, 1986
Filed:
Mar. 09, 1984
Applicant:
Inventors:
Osao Kamada, Tokyo, JP;
Shinichi Nishiyama, Ibaraki, JP;
Assignee:
Hitachi Cable Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C22F / ;
U.S. Cl.
CPC ...
148 / ; 148132 ; 148432 ; 470469 ;
Abstract
A method of producing an electrical conductor is described. The electrical conductor is made of an oxygen-free copper material having an oxygen content of not more than 50 ppm, wherein copper crystals constituting the copper material are giant crystals. These giant copper crystals are formed by heating the copper material in an inert atmosphere maintained at a temperature exceeding 800.degree. C. but below the melting point of copper for at least 15 minutes.
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Kamada, Osao. (1986). Method of producing electrical conductor (U.S. Patent No. 4582545). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4582545
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile