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:
Mar. 09, 2004
Filed:
Nov. 30, 2001
Yoshiaki Matsuura, Kosai, JP;
Teruo Sato, Toyohashi, JP;
Taketo Shimoda, Toyohashi, JP;
Kazuhiko Nagasaka, Hamamatsu, JP;
Kazunobu Kanno, Toyohashi, JP;
Kouichi Nakamura, Toyohashi, JP;
Satoru Iwasaki, Okazaki, JP;
Asmo Co., Ltd., Shizuoka, JP;
Abstract
A cup shaped yoke made of sheet material has an opening portion provided in a side wall on an axial end side, a shoulder portion provided in the sidewall on another axial end side, a magnet installation portion for installing a magnet, which is provided in the side wall between the opening and shoulder portions and whose wall thickness is substantially equal to thickness of the sheet material, and a bottom portion, which is provided in a bottom wall, having a boss shaped bearing accommodating portion in a center thereof. Each wall thickness of the opening, shoulder and bottom portions including the boss shaped bearing accommodating portion is equal to or smaller than a half of wall thickness of the magnet installation portion.