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.

Date of Patent:
Jan. 22, 2002

Filed:

Apr. 14, 2000
Applicant:
Inventors:

Kazuhiko Kita, Sendai, JP;

Yasuhiko Sugimoto, Kamiichi-machi, JP;

Yasuharu Yoshimura, Kurobe, JP;

Takahiro Fukuyama, Kurobe, JP;

Assignee:

YKK Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 9/05 ;
U.S. Cl.
CPC ...
C22C 9/05 ;
Abstract

A nickel-free white copper alloy represented by the general formula: Cu Zn Mn Al or Cu Zn Mn Al X , wherein X is at least one element selected from the group consisting of Si, Ti and Cr; b, c, d and e are 0.5&lE;b<5, 7&lE;c&lE;17, 0.5&lE;d&lE;4 and 0<e&lE;0.3 in terms of % by weight; a is the balance, the alloy incidentally including unavoidable elements. The alloy is free from allergic problems, which may be caused by nickel, and has excellent strength, hardness, ductility, workability and corrosion resistance, suitable for use in elements, sliders, stoppers or the like for slide fasteners, or accessories such as metallic buttons, fasteners or the like for clothes.


Find Patent Forward Citations

Kita, Kazuhiko. (2002). Nickel-free white copper alloy (U.S. Patent No. 6340446). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6340446

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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