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:
May. 03, 2016
Filed:
Apr. 16, 2012
Daisuke Iwata, Nishio, JP;
Tomoyuki Hori, Anjo, JP;
Naoki Yokoyama, Nishio, JP;
Koji Obayashi, Toyoake, JP;
Keita Taguchi, Agui, JP;
Hiroshi Shibata, Takahama, JP;
Daisuke Iwata, Nishio, JP;
Tomoyuki Hori, Anjo, JP;
Naoki Yokoyama, Nishio, JP;
Koji Obayashi, Toyoake, JP;
Keita Taguchi, Agui, JP;
Hiroshi Shibata, Takahama, JP;
AISIN AW CO., LTD., Anjo, JP;
Abstract
A drive plate includes a disk-shaped plate portion; and a tooth-shaped portion formed at an outer peripheral end of the plate portion. The plate portion and the tooth-shaped portion are integrally shaped from a single steel plate material. The plate portion and the tooth-shaped portion include a carburized layer provided over an entire surface layer of the plate portion and the tooth-shaped portion, the carburized layer having a carbon concentration higher than that of a center portion of the plate portion and the tooth-shaped portion in a thickness direction. The carburized layer of the plate portion is higher in hardness than the center portion of the plate portion in the thickness direction. The carburized layer of the tooth-shaped portion has been subjected to a quenching process, and is further higher in hardness than the carburized layer of the plate portion.