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:
Jan. 19, 2016
Filed:
Mar. 12, 2014
Kabushiki Kaisha Toshiba, Tokyo, JP;
Michio Yamamoto, Inagi, JP;
Tetsuo Kuribayashi, Yokohama, JP;
Masami Tashiro, Komae, JP;
Kenji Inoue, Kamakura, JP;
Takumi Kakuya, Ebina, JP;
Hironori Kanno, Fussa, JP;
Keiichi Yorimitsu, Yokohama, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Abstract
According to one embodiment, there is provided a magnetic disk device including a magnetic disk, a storage unit, and a control unit. The magnetic disk includes a recording region. The storage unit is configured to store a value according to number of accesses to each of a plurality of regions obtained by dividing of the recording region of the magnetic disk in association with each of the plurality of regions. The control unit is configured to count a value according to the number of accesses to each of a plurality of regions in a count step unit that is a value determined according to an elapsed time from occurrence of a specific situation and is a value counted per unit access, and to update the value stored in the storage unit.