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:
Mar. 04, 2014
Filed:
Mar. 14, 2011
Kei Hirata, Tokyo, JP;
Hiroshi Kiyono, Tokyo, JP;
Osamu Nakada, Tokyo, JP;
Kenkichi Anagawa, Tokyo, JP;
Kei Hirata, Tokyo, JP;
Hiroshi Kiyono, Tokyo, JP;
Osamu Nakada, Tokyo, JP;
Kenkichi Anagawa, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A magnetic disk device includes: a recording medium provided with a plurality of write tracks; a magnetic write head including a magnetic pole, side shields, and a leading shield, a distance from the magnetic pole to each of the side shields being maintained to be uniform with a gap layer therebetween, and a distance from the magnetic pole to the leading shield being maintained to be uniform with a gap layer therebetween; and a control section rotating the recording medium, and allowing magnetic information to be recorded on the recording medium while allowing the magnetic write head to travel in a direction from an inner write track toward an outer write track or in a direction from the outer write track toward the inner write track, across write tracks in the recording medium. With such a configuration, format efficiency may be improved, and a width of an erase band on a magnetic disk may be minimized. Therefore, surface recording density of a recording medium may be improved without reducing an effective write track width.