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:
Oct. 03, 2017
Filed:
Dec. 10, 2013
Denso Corporation, Kariya, Aichi-pref., JP;
Yousuke Yamagami, Obu, JP;
Motohiko Ueda, Okazaki, JP;
Tooru Ookuma, Anjo, JP;
Yasuo Tabuchi, Toyoake, JP;
Tomoyuki Mizuguchi, Anjo, JP;
Kazunori Mizutori, Toyohashi, JP;
Yasuhiro Tamatsu, Toyohashi, JP;
DENSO CORPORATION, Kariya, Aichi-pref., JP;
Abstract
A ring insertion groove is formed between adjacent two of circular plates, which are made of a magnetic material and are arranged concentric with each other, and a ring, which is made of a non-magnetic material and has a larger deformation resistance in comparison to the magnetic material of the plates, is press fitted into the ring insertion groove. Thereafter, a peripheral part around an opening of the ring insertion groove is plastically flowed, so that a compression stress is left in the ring.