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:
Sep. 01, 2020
Filed:
Aug. 09, 2012
Kouta Kido, Toyama, JP;
Takuya Koizumi, Toyama, JP;
Yasuharu Yoshimura, Toyama, JP;
Takahiro Fukuyama, Toyama, JP;
Atsushi Ogihara, Toyama, JP;
Kouichi Mikado, Toyama, JP;
Jun Kiyohara, Toyama, JP;
Yoshio Taira, Toyama, JP;
Kouta Kido, Toyama, JP;
Takuya Koizumi, Toyama, JP;
Yasuharu Yoshimura, Toyama, JP;
Takahiro Fukuyama, Toyama, JP;
Atsushi Ogihara, Toyama, JP;
Kouichi Mikado, Toyama, JP;
Jun Kiyohara, Toyama, JP;
Yoshio Taira, Toyama, JP;
YKK Corporation, , JP;
Abstract
A copper alloy for fastening wherein the alloy has a structure of a mixture of α-phase and a β-phase; and wherein the alloy has a composition represented by the general formula: CuZnMn, where bal., a, and b are expressed in % by mass, bal. represents the balance, 34≤a≤40.5, 0.1≤b≤6, and inevitable impurities may be contained; and the composition satisfying the equation (1): b≥(−8a+300)/7, where 34≤a<37.5 and equation (2): b≤(−5.5a+225.25)/5, where 35.5≤a≤40.5.