Magnetic recording devices having external alternating current sources

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12249358
APP PUB NO 20240112694A1
SERIAL NO

18540472

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Abstract

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Aspects of the present disclosure generally relate to a magnetic recording head assembly that includes an external alternating current (AC) source. A magnetic recording head of the magnetic recording head assembly includes a conductive structure between a main pole and a trailing shield. The conductive structure includes a conductive layer, and the conductive layer is nonmagnetic. The magnetic recording head assembly also includes an external AC source to supply AC current that flows through the conductive structure. In one aspect, the conductive structure is between a coil structure and the trailing shield, and the external AC source is coupled to the coil structure. The conductive structure and the external AC source facilitate consistently providing an enhanced AC writing field to facilitate effective and reliable writing, high ADC, high SNR, and reduced jitter.

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Patent Owner(s)

  • WESTERN DIGITAL TECHNOLOGIES, INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Asif, Bashir Muhammad San Jose, US 40 123
Bai, Zhigang Fremont, US 176 5619
Ding, Yunfei Fremont, US 42 919
Goncharov, Alexander Morgan Hill, US 56 307
Olson, James Terrence San Jose, US 24 475
Van, Der Heijden Petrus Antonius Cupertino, US 58 548

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