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:
Mar. 10, 2026
Filed:
Jun. 18, 2024
Western Digital Technologies, Inc., San Jose, CA (US);
Muhammad Asif Bashir, San Jose, CA (US);
Zhigang Bai, Fremont, CA (US);
Shengjie Shi, San Jose, CA (US);
Shuang Wu, San Jose, CA (US);
Yunfei Ding, Fremont, CA (US);
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
The present disclosure generally relate to a magnetic recording device comprising a write head and a resistor network coupled to the write head. The resistor network comprises a first path comprising a primary coil of the write head and a second path in parallel with the first current path, the second path comprising an assistive write element of the write head. A preamplifier coupled to the resistor network is configured to apply current to the first and second paths, where the current diverts into the first and second paths individually. The resistor network is coupled to the preamplifier by a single lead. The first path is configured to apply current to a primary coil of the write head. The second path is configured to apply current from a leading shield, via the assistive write element, to a trailing shield at a media facing surface.