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:
Aug. 19, 2008
Filed:
Jun. 27, 2007
Shinji Fujimoto, Kawasaki, JP;
Masato Shibuya, Kawasaki, JP;
Hisashi Kaneko, Kawasaki, JP;
Tsuneyori Ino, Kawasaki, JP;
Yukihiro Komura, Kawasaki, JP;
Mitsuhiro Izumi, Kawasaki, JP;
Kei Funabashi, Kawasaki, JP;
Shinji Fujimoto, Kawasaki, JP;
Masato Shibuya, Kawasaki, JP;
Hisashi Kaneko, Kawasaki, JP;
Tsuneyori Ino, Kawasaki, JP;
Yukihiro Komura, Kawasaki, JP;
Mitsuhiro Izumi, Kawasaki, JP;
Kei Funabashi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A magnetic disk device comprises a magnetic disk in which a data zone is formed. An actuator has a voice coil and a head slider carrying a magnetic head, the actuator being swung to move the magnetic head over the disk between an innermost position of the data zone and an outermost position of the data zone. A magnet has a magnetization center and is opposed to the voice coil so that a voice coil motor which swings the actuator is formed, the magnet having a north pole and a south pole confronting each other via the magnetization center. The magnetic disk device is provided so that a deviation of a center of the voice coil from the magnetization center when the magnetic head is in the innermost position of the data zone is substantially equal to a deviation of the center of the voice coil from the magnetization center when the magnetic head is in the outermost position of the data zone.