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:
Apr. 11, 2023

Filed:

Dec. 20, 2021
Applicants:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;

Inventor:

Gaku Koizumi, Kawasaki Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/00 (2006.01); G11B 11/105 (2006.01); G11B 5/48 (2006.01); G11B 5/60 (2006.01); G11B 5/012 (2006.01);
U.S. Cl.
CPC ...
G11B 5/4826 (2013.01); G11B 5/012 (2013.01); G11B 5/607 (2013.01);
Abstract

According to one embodiment, a magnetic disk device includes a magnetic disk, a magnetic head, a control unit, and a setting unit. The magnetic head includes a write element which writes data to the magnetic disk and heater elements which adjust a levitation amount relative to the magnetic disk. The setting unit sets a heater value to be set on the basis of a measurement result of measuring the recording quality of the data written to the magnetic disk. The control unit controls electric power to be supplied to the heater elements on the basis of the heater value to be set to the setting unit.


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