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. 19, 2017
Filed:
Nov. 18, 2011
Hisao Shishido, Kobe, JP;
Shinya Katsura, Shimonoseki, JP;
Yasuhiro Aruga, Kobe, JP;
Katsushi Matsumoto, Kobe, JP;
Hisao Shishido, Kobe, JP;
Shinya Katsura, Shimonoseki, JP;
Yasuhiro Aruga, Kobe, JP;
Katsushi Matsumoto, Kobe, JP;
Kobe Steel, Ltd., Kobe-shi, JP;
Abstract
A copper alloy containing Ni: 1.5%-3.6% and Si: 0.3%-1.0% in terms of mass percent with the remainder consisting of copper and unavoidable impurities, wherein: the average crystal grain size of the crystal grains in the copper alloy is 5 to 30 μm; the area ratio of the crystal grains having crystal grain sizes not less than twice the average crystal grain size is not less than 3%; and the ratio of the area of cube orientation grains to the area of the crystal grains having crystal grain sizes not less than twice the average crystal grain size is not less than 50%.