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. 24, 2007
Filed:
Jul. 08, 2003
Applicants:
Rikuro Obara, Miyota-machi, JP;
Kenji Fukunaga, Miyota-machi, JP;
Inventors:
Rikuro Obara, Miyota-machi, JP;
Kenji Fukunaga, Miyota-machi, JP;
Assignee:
Minebea Co., Ltd., Kitasaku-gun, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16C 33/66 (2006.01); B21D 53/10 (2006.01); B21K 1/76 (2006.01); B23P 6/00 (2006.01); B23P 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A spindle motor is formed so as to support a pivot of a rotor by a pair of open bearings. The open bearings thus constructed will be less expensive and simple structures, so that a manufacturing cost thereof is reduced compared to a conventional spindle motor using a pair of ball bearings with shields. Accordingly, a low-cost spindle motor can be provided.