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:
Jan. 15, 2019
Filed:
Mar. 12, 2015
Ykk Corporation, Tokyo, JP;
Takuya Koizumi, Toyama, JP;
Kouta Kido, Toyama, JP;
Yasuhara Yoshimura, Toyama, JP;
Kyudo Ota, Toyama, JP;
Itaru Hasegawa, Toyama, JP;
Kazuya Akitsu, Toyama, JP;
Yuri Katsumi, Toyama, JP;
YKK Corporation, , JP;
Abstract
An improved season cracking resistance of a metallic fastener member is provided and includes a copper alloy containing zinc as a base material. The metallic fastener member includes, as a base material, a copper alloy containing zinc, and the metallic fastener member has a surface to which a rust prevention treatment has been applied and has such a property that, when analyzed by a scanning X-ray photoelectron spectroscopy apparatus, a maximum value of an atomic concentration of Mn is detected at a depth of 100 nm or less from the surface.