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.

Date of Patent:
Jul. 28, 2015

Filed:

Dec. 03, 2013
Applicant:

Hgst Netherlands B.v., Amsterdam, NL;

Inventors:

Kouki Uefune, Hiratsuka, JP;

Takenori Atsumi, Yamato, JP;

Hajime Eguchi, Fujisawa, JP;

Shigenori Takada, Fujisawa, JP;

Assignee:

HGST Netherlands B.V., Amsterdam, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/55 (2006.01); G11B 5/48 (2006.01);
U.S. Cl.
CPC ...
G11B 5/5573 (2013.01); G11B 5/4833 (2013.01); G11B 5/55 (2013.01);
Abstract

Approaches to a rotary actuator assembly configured for use in a hard disk drive (HDD) include a voice coil interleaved between the pivot bearing and the actuator arm, providing a longer pivot-to-head dimension which reduces the radius of curvature of the arc in which the head slider travels over the disk for accessing portions of the disk. Reducing the arc radius of curvature reduces the maximum skew angles of the read-write head in association with the disk tracks. The width of the actuator arm can be widened to provide improved operating characteristics even in view of the longer pivot-to-head dimension.


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