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:
Jun. 02, 2009
Filed:
Apr. 12, 2005
Hidekazu Kohira, Kanagawa-ken, JP;
Hidekazu Kohira, Kanagawa-ken, JP;
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
Embodiments of the invention prevent the reduction of the flying height of a magnetic head slider at a high altitude and thereby to improve the reliability of a magnetic disk drive. In one embodiment, a magnetic head slider has an air inlet end, an air outlet end, and an aerodynamic structure (air bearing surface). The aerodynamic structure includes: a plurality of inlet rails respectively having inlet rail surfaces; an outlet rail having an outlet rail surface flush with the inlet rail surfaces and holding a magnetic head; a bearing surface extending at a predetermined first depth δfrom a reference plane including the inlet and the outlet rail surfaces; a negative-pressure surface extending in a plane at a predetermined second depth δgreater than the first depth δfrom the reference plane; and longitudinal lands of a predetermined height h formed on the inlet rails. The bearing surface and the inlet rail surfaces extend between the air inlet end and the lands.