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.

Date of Patent:
Oct. 16, 2018

Filed:

Mar. 09, 2018
Applicants:

Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;

Toshiba Electronic Devices & Storage Corporation, Minato-ku, Tokyo, JP;

Inventors:

Kazuya Takada, Kamakura Kanagawa, JP;

Kenji Yoshida, Kamakura Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/09 (2006.01); G11B 5/012 (2006.01); G11B 5/54 (2006.01); G11B 25/04 (2006.01); G11B 5/00 (2006.01);
U.S. Cl.
CPC ...
G11B 5/012 (2013.01); G11B 5/54 (2013.01); G11B 25/043 (2013.01); G11B 2005/0005 (2013.01);
Abstract

According to one embodiment, a magnetic disk device including a disk, a head which reads data from the disk, a memory which records data, and a controller which includes a table, and records, at a first time point at which a read gate is open, a first area number of a first area of the table in which first information related to first data is recorded, a first serial number of the first data added when the read gate is open, and a first count value of the first data, in the first area.


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