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:
Jun. 16, 2026
Filed:
Apr. 15, 2025
Western Digital Technologies, Inc., San Jose, CA (US);
Hideaki Ito, Fujisawa, JP;
Gaku Ikedo, Fujisawa, JP;
Hajime Eguchi, Fujisawa, JP;
Ryan Mayo, Aliso Viejo, CA (US);
Akira Yokozuka, Fujisawa, JP;
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
A data storage device comprises a recording head, a disk, a first fine actuator group configured to position the recording head over the disk, and control circuitry. The control circuitry is configured to apply a slew control voltage waveform to the first fine actuator group to transition the first fine actuator group from an active state to an inactive state, and apply a control signal initiating at a last-applied value of the slew control voltage waveform to the first fine actuator group to transition the first fine actuator group back to the active state before completion of the slew control voltage waveform.