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:
Aug. 11, 2009
Filed:
Dec. 15, 2005
Kohji Serizawa, Kanagawa, JP;
Hitoshi Tsujino, Kanagawa, JP;
Hirokazu Tanizawa, Kanagawa, JP;
Motoji Takemoto, Kanagawa, JP;
Kohji Serizawa, Kanagawa, JP;
Hitoshi Tsujino, Kanagawa, JP;
Hirokazu Tanizawa, Kanagawa, JP;
Motoji Takemoto, Kanagawa, JP;
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
Embodiments of the invention provide a disk device capable of diminishing oscillation of a disk caused by an air flow which is created with rotation of the disk. In one embodiment, a magnetic disk device comprises a rotatable magnetic disk, a base and a top cover for housing the magnetic disk inside, a flow uniforming wall disposed along an outer periphery of the magnetic disk, and a circulation filter for collecting dust present within the device. The flow uniforming wall is positioned in opposition to the outer periphery of the magnetic disk and has a step height at a position other than the position opposed to the disk outer periphery, with an opening being formed by a gap between the step height and the top cover. This opening serves as an inlet port to admit an air flow created with rotation of the magnetic disk, and the circulation filter collects dust contained in the admitted air flow.