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. 04, 2009
Filed:
May. 25, 2005
Takaaki Deguchi, Kanagawa, JP;
Mutsuro Ohta, Kanagawa, JP;
Kanako Abe, Kanagawa, JP;
Akira Morita, Kanagawa, JP;
Takaaki Deguchi, Kanagawa, JP;
Mutsuro Ohta, Kanagawa, JP;
Kanako Abe, Kanagawa, JP;
Akira Morita, Kanagawa, JP;
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
Embodiments of the present invention provide a data storage device and a magnetic disk drive capable of maintaining the inside of a base in a hermetically sealed condition. In one embodiment, a data storage device includes a recording disk, a base having a through hole, a top cover having a tapping hole aligned with the through hole and a depressed portion with the tapping hole formed in a bottom thereof, and a screw inserted through the through hole into threaded engagement with the tapping hole and having a head which comes into close contact with an outer surface of the base. The top cover is fitted inside the base in a state in which the depressed portion is positioned on the base side, and the bottom of the depressed portion comes into close contact with the base in the threadedly engaged state of the screw and in an area which surrounds the through hole.