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. 20, 2012
Filed:
Oct. 09, 2007
Applicants:
Kinjirou Okinaga, Tottori, JP;
Masahito Hidaka, Tottori, JP;
Koji Kuyama, Tottori, JP;
Inventors:
Assignee:
Minebea Motor Manufacturing Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 17/028 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a disk drive device that can appropriately clamp a disk by means of magnetic force even when the disk drive device is very small. A clamping magneton which a diskis mounted is attached to a turntable portionof a rotor frameto attract the disk. The clamping magnetis configured so that the diskcan be mounted on the clamping magnet. An area of the rotor framefrom the turntable portionto a boss portionis composed of a ferromagnetic material.