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:
Feb. 10, 2004
Filed:
Feb. 09, 2000
Applicant:
Inventors:
Koichi Aikawa, Kawasaki, JP;
Tatsuro Sasamoto, Kawasaki, JP;
Susumu Yoshida, Kawasaki, JP;
Akihide Jinzenji, Kawasaki, JP;
Tomoo Sukagawa, Kawasaki, JP;
Keiji Aruga, Kawasaki, JP;
Yoshiaki Koizumi, Kawasaki, JP;
Yasuyoshi Asao, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 2/108 ;
U.S. Cl.
CPC ...
G11B 2/108 ;
Abstract
A magnetic disk unit has two actuators each rotating on a common rotary shaft. The two actuators are driven by a voice coil motor. The voice coil motor comprises: a magnetic circuit comprising a magnet provided for the two actuators on a common basis and two yokes, which are associated with the two actuators, respectively, said two yokes being disposed at both sides between which the magnet intervenes; and two coils provided for the two actuators, respectively.