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:
Jul. 19, 2011
Filed:
Jul. 28, 2008
Applicants:
Yuta Nakano, Chitose, JP;
Junji Ando, Kariya, JP;
Inventors:
Yuta Nakano, Chitose, JP;
Junji Ando, Kariya, JP;
Assignees:
Dynax Corporation, Chitose-shi, JP;
JTEKT Corporation, Osaka-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D 69/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
To control initial shudder in a wet paper friction plate, the frictional sliding surface of a wet paper friction member is preconditioned by frictional sliding contact with a mating plate until its bearing length ratio tp at a cutting depth of 10 μm is in the range from 70 to 85%. The preconditioning is optionally preceded by grinding, preferably before the wet paper friction member is attached to a base plate.