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. 06, 2026
Filed:
Sep. 12, 2024
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Sho Suzuki, Tokyo, JP;
Takeyori Hara, Kawasaki Kanagawa, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Toshiba Electronic Devices & Storage Corporation, Kawasaki, JP;
Abstract
According to one embodiment, a magnetic disk device includes an actuator which holds a magnetic head to move in a radial direction of a magnetic disk with voice coil motor drive, and a controller. The controller moves a magnetic head from a current position to a target position by controlling the voice coil motor drive. The controller calculates an acceleration of the magnetic head, based on a position history of the magnetic head, and calculates an acceleration of the magnetic head, based on a value of a drive current of the voice coil motor. The controller detects vibration occurring in the actuator, based on a difference between the calculated accelerations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile