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:
Dec. 13, 2011
Filed:
Aug. 17, 2009
Yasushi Tomizawa, Tokyo, JP;
Kohsuke Harada, Kanagawa, JP;
Hiroaki Nakamura, Kanagawa, JP;
Yoshiyuki Ishihara, Kanagawa, JP;
Shinji Takakura, Kanagawa, JP;
Yasushi Tomizawa, Tokyo, JP;
Kohsuke Harada, Kanagawa, JP;
Hiroaki Nakamura, Kanagawa, JP;
Yoshiyuki Ishihara, Kanagawa, JP;
Shinji Takakura, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A magnetic disk apparatus includes a magnetic disk that includes a plurality of zones in which a plurality of tracks are arranged for each of circumferences of a spiral, and gaps that are arranged between the zones to have a width a predetermined number of times larger than a track width and that are regions without providing recording bits; and a reproducing element that simultaneously makes an access to the recording bits contained in the tracks, reading information stored in the recording bits, wherein the number of the tracks is one or larger and a sum of one and the predetermined number or smaller in one of the zones.