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:
Dec. 12, 2017
Filed:
Mar. 23, 2015
Applicant:
Aisin Kako Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Inventor:
Hiroki Okamura, Nagoya, JP;
Assignee:
AISIN KAKO KABUSHIKI KAISHA, Toyota-shi, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16D 13/64 (2006.01); F16D 13/74 (2006.01); F16D 65/12 (2006.01); F16D 69/00 (2006.01); F16D 13/69 (2006.01); F16D 65/02 (2006.01);
U.S. Cl.
CPC ...
F16D 13/74 (2013.01); F16D 13/648 (2013.01); F16D 13/69 (2013.01); F16D 65/127 (2013.01); F16D 2065/1324 (2013.01); F16D 2065/1364 (2013.01); F16D 2069/004 (2013.01); F16D 2069/009 (2013.01);
Abstract
A wet friction disk that can achieve a further reduction in the drag torque, which includes a ring-shaped core plate having a wave shape in a circumferential direction thereof, a friction member disposed on a principal surface of the core plate so as to being substantially shaped into a ring with a plurality of oil grooves, and the oil grooves each have a shape with a groove width that is narrowed from an inner circumference side toward an outer circumference side of the core plate.