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:
Oct. 29, 2013
Filed:
Dec. 18, 2009
Kazuhide Ichikawa, Kanagawa, JP;
Takashi Kouno, Kanagawa, JP;
Kouki Uefune, Kanagawa, JP;
Takako Hayakawa, Kanagawa, JP;
Kazuhide Ichikawa, Kanagawa, JP;
Takashi Kouno, Kanagawa, JP;
Kouki Uefune, Kanagawa, JP;
Takako Hayakawa, Kanagawa, JP;
HGST Netherlands, B.V., Amsterdam, NL;
Abstract
In order to effectively reduce disk flutter in a disk drive by using simple structures and efficient manufacturing techniques, a disk drive, in one embodiment, includes a base, a spindle motor coupled to the bottom of the base, a disk coupled to and rotated by a rotational shaft of the spindle motor, an airflow reduction plate coupled inside the base and positioned opposite to and away from a main plane of the disk, and a sidewall section inside the base which is positioned opposite to an outer edge of the disk and has a form along the outer edge of the disk. A first gap between at least one half of a part positioned opposite to the sidewall section in an outer edge of the airflow reduction plate and the sidewall section is smaller than a second gap between the sidewall section and the outer edge of the disk.