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Patent Searching and Data


Title:
COPPER ALLOY FASTENER ELEMENT AND SLIDE FASTENER
Document Type and Number:
WIPO Patent Application WO/2018/020583
Kind Code:
A1
Abstract:
Provided is a copper alloy fastener element having a season cracking resistance which is improved by a strategy different from a strategy in which the proportion of a β phase is increased. This copper alloy fastener element comprises as a parent material a copper-zinc alloy that has an apparent zinc content of 34-38% by mass, has a dendrite structure, and contains a β phase at a proportion of 10% or less.

Inventors:
KUMEI,Takanori (200Yoshida,Kurobe-sh, Toyama 01, 〒9388601, JP)
OGIHARA,Atsushi (200Yoshida,Kurobe-sh, Toyama 01, 〒9388601, JP)
HIROMI,Chikako (200Yoshida,Kurobe-sh, Toyama 01, 〒9388601, JP)
TAIRA,Yoshio (200Yoshida,Kurobe-sh, Toyama 01, 〒9388601, JP)
YOKOTA,Muneyoshi (200Yoshida,Kurobe-sh, Toyama 01, 〒9388601, JP)
FUKUYAMA,Takahiro (200Yoshida,Kurobe-sh, Toyama 01, 〒9388601, JP)
KIDO,Kouta (200Yoshida,Kurobe-sh, Toyama 01, 〒9388601, JP)
Application Number:
JP2016/071901
Publication Date:
February 01, 2018
Filing Date:
July 26, 2016
Export Citation:
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Assignee:
YKK CORPORATION (1Kanda Izumi-cho, Chiyoda-ku Tokyo, 42, 〒1018642, JP)
International Classes:
A44B19/24
Domestic Patent References:
WO2014024293A12014-02-13
WO2012004841A12012-01-12
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (Shimbashi i-mark Bldg, 6-2 Shimbashi 2-Chome Minato-k, Tokyo 04, 〒1050004, JP)
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