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:
Jan. 06, 2009
Filed:
Jul. 12, 2006
Takehito Tamaoka, Kyoto, JP;
Shingo Suginobu, Kyoto, JP;
Takehito Tamaoka, Kyoto, JP;
Shingo Suginobu, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
A rotor hub for use in a motor installed into a recording disk driving device to spin a recording disk includes a convex portion, a disk placing portion around the convex portion, and the relief portion which is a substantially circular concave portion disposed between the convex portion and the disk placing portion. The recording disk, preferably a 1.8-inch or smaller type disk, having a center circular through-hole, is mounted on the rotor hub. When the recording disk is mounted on the rotor hub, with the bottom surface thereof abutting against a portion of the disk placing portion and an inner side surface of the center circular through-hole of the recording disk, an upper edge of the relief portion is arranged axially lower than an upper edge of the inner side surface of the center circular through-hole, and a bottom edge of the relief portion is arranged inward from an inner edge of the bottom surface of the recording disk.