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:
Dec. 30, 2014
Filed:
Jun. 09, 2011
Applicants:
Takehiko Eguchi, Tokyo, JP;
Shigeo Nakamura, Tokyo, JP;
Inventors:
Takehiko Eguchi, Tokyo, JP;
Shigeo Nakamura, Tokyo, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 17/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a magnetic, disk apparatus, flows around disks are stabilized, flow-induced vibration generated in the disks and a head positioning actuator is reduced, and the positioning accuracy of the head is improved. In a magnetic disk apparatus including plural magnetic disks which are attached to a rotating motor and stacked with a spacer in between and a static structure that surrounds outer circumferences of the magnetic disks, plural current plates supported by the static structure are inserted between a pair of the magnetic disks in a stacking direction of the magnetic disks.