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:
Apr. 05, 2011
Filed:
Oct. 02, 2007
Applicants:
Masato Hasegawa, Ama-gun, JP;
Hiroki Okamura, Nagoya, JP;
Inventors:
Masato Hasegawa, Ama-gun, JP;
Hiroki Okamura, Nagoya, JP;
Assignee:
Aisin Kako Kabushiki Kaisha, Toyota-Shi, Aichi-Ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/00 (2006.01); B32B 7/00 (2006.01); C09K 3/14 (2006.01); F16D 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a wet-type friction material, a ring-shaped friction material substrate is compressed and fixed on a surface of a core metal by heat-pressing by a manufacturing metal mold. At the same time, a taper of an angle α corresponding to a taper at an outer peripheral side of an upper mold is provided on an outer peripheral side of the ring-shaped friction material substrate. Thus, the taper is formed such that a thickness in a radial direction of the ring-shaped friction material substrate becomes smaller from a middle point toward an outer peripheral edge.