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. 08, 2015
Filed:
Jan. 18, 2013
Jtekt Corporation, Osaka, JP;
Nhk Spring Co., Ltd., Yokohama-shi, JP;
Hiroyuki Ando, Takahama, JP;
Kunihiko Suzuki, Gamagori, JP;
Junji Ando, Anjo, JP;
Tatsuki Shimura, Otsu, JP;
JTEKT CORPORATION, Osaka-shi, JP;
NHK SPRING CO., LTD., Yokohama-shi, JP;
Abstract
A clutch plate in an annular shape, the clutch plate includes: a plurality of lubricating grooves on one end face and the other end face of the clutch plate in an axial direction; and a plurality of windows passing through the clutch plate in the axial direction. The lubricating grooves are formed with plastic deformation, in a same phase on both the end faces, and extended up to outer peripheral edges and inner peripheral edges of both the end faces. A plurality of intersection points where the lubricating grooves intersect with each other are positioned in other areas than at least one of the outer peripheral edges, radially outer edges of the windows, radially inner edges of the windows, and the inner peripheral edges, of both the end faces.