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:
Apr. 25, 2006
Filed:
Dec. 05, 2002
Applicants:
Kenichi Shitara, Kanagawa, JP;
Akihiro Matsumoto, Kanagawa, JP;
Inventors:
Kenichi Shitara, Kanagawa, JP;
Akihiro Matsumoto, Kanagawa, JP;
Assignee:
Hitachi Electronics Engineering Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/596 (2006.01);
U.S. Cl.
CPC ...
Abstract
A piezo actuator is provided between a suspension spring and a head carriage. When a predetermined track of a magnetic disk is accessed by positioning a magnetic head in the predetermined track, the piezo actuator maintains the magnetic head in an ON track state by dynamically moving a light weight head cartridge according to a servo information or dynamically moving a head assembly in the head cartridge according the servo information.