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:
Feb. 11, 2025
Filed:
Jun. 28, 2019
Applicant:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Inventors:
Takumi Akada, Osaka, JP;
Daigo Sato, Osaka, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01B 1/02 (2006.01); F16F 1/02 (2006.01); H01B 7/00 (2006.01); F16F 1/04 (2006.01);
U.S. Cl.
CPC ...
H01B 1/02 (2013.01); F16F 1/021 (2013.01); H01B 7/0009 (2013.01); F16F 1/045 (2013.01); F16F 2224/0208 (2013.01); F16F 2228/007 (2013.01);
Abstract
A copper-coated steel wire includes a core wire made of a stainless steel, and a coating layer made of copper or a copper alloy and covering an outer peripheral surface of the core wire. In a cross section perpendicular to a longitudinal direction of the core wire, the outer peripheral surface of the core wire has a value of an arithmetic mean roughness Ra of not less than 25% and not more than 90% of a thickness of the coating layer.