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:
Sep. 15, 2015
Filed:
Jul. 26, 2013
Applicant:
Jtekt Corporation, Osaka-shi, JP;
Inventors:
Assignee:
JTEKT Corporation, Osaka-shi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D 13/74 (2006.01); F16D 13/64 (2006.01); F16D 27/115 (2006.01); F16D 13/38 (2006.01); F16D 27/04 (2006.01); F16D 69/00 (2006.01);
U.S. Cl.
CPC ...
F16D 13/64 (2013.01); F16D 13/385 (2013.01); F16D 13/648 (2013.01); F16D 27/04 (2013.01); F16D 27/115 (2013.01); F16D 13/74 (2013.01); F16D 2069/004 (2013.01);
Abstract
A clutch plate arranged to face a contact object so as to be relatively rotatable and relatively movable includes a contact surface being able to contact the contact object via lubricant and a minute groove open at the contact surface and formed of a plurality of groove portions having a predetermined groove pitch. A ratio of a contact area of the contact surface to an area obtained by adding an opening area of the minute groove to the contact area of the contact surface is 90% to 96% in an initial state.