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:
Mar. 31, 2015
Filed:
Sep. 09, 2009
Applicants:
Ryo Mukai, Toyota, JP;
Hiromi Yokota, Toyota, JP;
Kao Mouri, Toyota, JP;
Inventors:
Assignee:
Taiho Kogyo Co., Ltd., Aichi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C 9/00 (2006.01); F16C 33/12 (2006.01); B22F 9/00 (2006.01); C22C 9/02 (2006.01); C22C 1/04 (2006.01); C22C 9/04 (2006.01); C22C 32/00 (2006.01); F16C 33/24 (2006.01);
U.S. Cl.
CPC ...
C22C 9/02 (2013.01); C22C 1/0425 (2013.01); C22C 9/00 (2013.01); C22C 9/04 (2013.01); C22C 32/00 (2013.01); F16C 33/24 (2013.01); F16C 33/121 (2013.01); Y02T 10/865 (2013.01); F16C 2204/10 (2013.01);
Abstract
Sliding parts are made of Pb-free Cu—Bi based sintered material. The side in contact with a shaft is machined to a predetermined roughness. A number of Bi phases are present on the finished surface. Stable performance of Bi is to be exhibited. Machined sintered material covers a portion of the Bi phases. The ratio of the exposed surface area of the Bi phases is 0.5% or more relative to the area of the finished surface.