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:
May. 09, 2006
Filed:
Dec. 22, 2003
Norio Yoshikawa, Yokohama, JP;
Tomoyuki Tokizaki, Ome, JP;
Norio Yoshikawa, Yokohama, JP;
Tomoyuki Tokizaki, Ome, JP;
Kabbushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A magnetic disk apparatus comprises an actuator for swinging a magnetic head substantially in the radial direction of a magnetic disk. First and second magnetic bodies, which individually constitute magnetic circuits between the magnetic bodies and a permanent magnet of a VCM, are fixed to the rear end of the actuator. The first magnetic body is pulled by leakage flux from the permanent magnet to return the actuator to a parking position when the actuator is deviated from the parking position. The second magnetic body is caused by the leakage flux to act so as to return the actuator at least to a position in a range such that a tensile force acts on the first magnetic body when the actuator is moved overpassing that range.