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:
May. 08, 2018
Filed:
Dec. 03, 2013
Applicant:
Kurimoto, Ltd., Osaka, JP;
Inventors:
Masaaki Yamamoto, Osaka, JP;
Hiroshi Yamada, Osaka, JP;
Takeaki Miyamoto, Osaka, JP;
Syohei Matsuba, Osaka, JP;
Assignee:
KURIMOTO, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 9/04 (2006.01); C22C 1/02 (2006.01); B22D 21/00 (2006.01);
U.S. Cl.
CPC ...
C22C 9/04 (2013.01); B22D 21/00 (2013.01); C22C 1/02 (2013.01);
Abstract
A copper alloy for use in water works has not only a reduced lead content and the lowest possible Ni content, but also a reduced Bi content, and still exhibits suitable properties. The copper alloy includes: less than 0.5% by mass of Ni; 0.2% by mass or more and 0.9% by mass or less of Bi; 12.0% by mass or more and 20.0% by mass or less of Zn; 1.5% by mass or more and 4.5% by mass or less of Sn; and 0.005% by mass or more and 0.1% by mass or less of P; wherein the total content of Zn and Sn is 21.5% by mass or less, and the balance is a trace element(s) and Cu.