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:
Jul. 27, 2021
Filed:
Sep. 10, 2020
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Takahiro Kawai, Yokohama Kanagawa, JP;
Tatsuo Nitta, Machida Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Abstract
According to one embodiment, a magnetic disk device includes a plurality of disks including a first area to which data is randomly written in normal recording and to which an LBA is added, and a second area to which data is written in shingled recording to write a plurality of tracks overlaid in a radial direction and to which an LBA is added, a plurality of heads, and a controller which writes data to the first area in the normal recording, writes data to the second area in the shingled recording, and changes the first area in accordance with a first recording capacity of a first recording surface in each of the disks, which corresponds to a first head of the heads, when the first head is inhibited from being used.