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. 09, 2000
Filed:
Jun. 17, 1998
Applicant:
Inventors:
Hideo Tsuji, Nagoya, JP;
Tatsuo Yamada, Nagoya, JP;
Hideo Ishikawa, Nagoya, JP;
Takayuki Shibayama, Nagoya, JP;
Assignee:
Daido Metal Company Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
428644 ; 428677 ; 428941 ; 384912 ;
Abstract
Disclosed is a Cu--Pb alloy bearing and a producing method thereof. The Cu--Pb alloy bearing consists of a backing metal layer and a Cu--Pb bearing alloy layer which is bonded to the backing metal layer and whose matrix contains dispersed Pb-phase grains. Within an at least 30 .mu.m thick surface region of the Cu--Pb bearing alloy layer, the Pb-phase grains comprise at least one of In and Sn in an amount or a total amount of not less than 2 wt %, respectively, which are elements added into the Pb-phase grains by migration.