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:
May. 19, 2026
Filed:
Apr. 25, 2025
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 the embodiment, a controller of a magnetic disk device executes, for each of unexecuted commands, a first operation to estimate a seek time for executing a corresponding command. The first operation includes acquiring a first force constant of the motor and a second force constant of the motor, and estimating a seek time based on the first and second force constants and a seek distance. The first force constant is determined when the magnetic head is at a start position of a seek operation. The second force constant is determined when the magnetic head is at an end position of the seek operation. The controller determines a command to be executed first out of the unexecuted commands based on the estimated value of the seek time obtained by the first operation for each of the unexecuted commands.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile