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. 05, 2005
Filed:
May. 10, 2000
Information recording medium, information recording/reproducing head, and information storage device
Applicants:
Koichiro Wakabayashi, Toride, JP;
Nobuyuki Inaba, Hasuda, JP;
Teruaki Takeuchi, Ibaraki, JP;
Inventors:
Assignee:
Hitachi Maxell, Ltd., Ibaraki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B005/09 ;
U.S. Cl.
CPC ...
Abstract
An information recording medium, an information recording/reproduction head, and an information storage device are provided for performing a track servo operation at a smaller track pitch than that conventionally used without reducing the widths of servo burst patterns. The widths of servo burst patterns () are increased over a track pitch (TP) and the end of the servo burst pattern is disposed so as not to coincide with a center line () of an information track. In addition, a servo magnetic head () and a reproduction magnetic head () are implemented in one magnetoresistance element ().