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. 04, 2026
Filed:
Sep. 30, 2024
Seagate Technology Llc, Fremont, CA (US);
Yanzhang Liu, Eden Prairie, MN (US);
Zhen Wei, Maple Grove, MN (US);
Jianhua Xue, Maple Grove, MN (US);
Olle Gunnar Heinonen, Eden Prairie, MN (US);
Michael Allen Seigler, Eden Prairie, MN (US);
Seagate Technology LLC, Fremont, CA (US);
Abstract
An apparatus includes a write head. A preamplifier is coupled to the write head. A controller is coupled to the preamplifier and configured to cause the preamplifier to apply an overshoot current to the write head for a predefined overshoot current duration, apply an undershoot current to the write head for a predefined undershoot current duration, and apply a steady-state current to the write head after the undershoot current duration, the steady-state current being greater than the undershoot current.