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. 21, 2006
Filed:
Nov. 10, 2004
Shinya Tokunaga, Koka, JP;
Mitsuhiro Kurino, Kodaira, JP;
Shinya Tokunaga, Koka, JP;
Mitsuhiro Kurino, Kodaira, JP;
Nidec Corporation, Kyoto, JP;
Abstract
In a spindle motor, in an upper portion of a stator bearing surrounding wallof a bearing housing, a flangeprojecting outward in the radial direction from the stator bearing surrounding wallis provided, and a tapered faceobtained in such a manner that the outer diameter of the bearing housinggradually decreases downward from the flangeis formed in the outer face of the stator bearing surrounding wall. A rotorhas a yokefacing the bearing housingin the radial direction and the air-fluid boundary is formed in a fifth clearancebetween the tapered faceand the inner face of the yoke. By the yokeand the flangewhich are fit to each other in a non-contact state, a detachment preventing structure is constructed.