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. 03, 1997
Filed:
Dec. 23, 1994
Applicant:
Inventor:
Takahiro Asano, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360106 ; 360 9701 ;
Abstract
A hard disk drive includes a casing and a cover closing a top opening of the casing. In the casing are arranged a magnetic disk, magnetic heads for recording and reproducing information on and from the disk, a carriage supporting the magnetic heads, and a voice coil motor having a magnet, for driving the carriage. The cover is formed of a material with a high magnetic permeability and constitutes a magnetically permeable section which faces the magnet and allows a magnetic flux from the magnet to flow in the permeable section.