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:
Aug. 06, 2019
Filed:
Feb. 28, 2017
Applicant:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Inventor:
Masafumi Iwashiro, Yokohama Kanagawa, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/12 (2016.01); G06F 3/06 (2006.01); G11B 5/55 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0659 (2013.01); G06F 3/0611 (2013.01); G06F 3/0656 (2013.01); G06F 3/0676 (2013.01); G11B 5/5547 (2013.01);
Abstract
A magnetic disk device includes a magnetic disk, a magnetic head, a voice coil motor which drives movement of the magnetic head relative to the magnetic disk, a drive circuit which drives the voice coil motor, a memory in which a seek time for a seek operation is stored in association with a seek distance of the magnetic head, and a controller. The controller changes the seek time stored in the memory in association with the seek distance based on a temperature and a power supply voltage of the drive circuit.