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:
Jun. 15, 1999
Filed:
Sep. 16, 1997
Applicant:
Inventors:
Ryuji Ninomiya, Saitama, JP;
Takeshi Ojiro, Saitama, JP;
Makoto Kano, Yokohama, JP;
Hidenobu Matsuyama, Kanagawa, JP;
Assignees:
Nissan Motor Co., Ltd., Kanagawa, JP;
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
420487 ; 420488 ; 420490 ; 420495 ; 428652 ;
Abstract
An abrasion resistant copper alloy suitable for the material of an overlaid layer formed at the valve seat of an engine cylinder head formed of aluminum alloy. The copper alloy consists essentially of nickel in an amount ranging from 10 to 30% by weight; silicon in an amount ranging from 0.5 to 5.0% by weight; at least one element selected from the group consisting of molybdenum, tungsten, tantalum, niobium and vanadium, in an amount ranging from 2.0 to 15.0% by weight; and balance being copper and impurities.