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. 25, 2021
Filed:
Jan. 18, 2019
Sandisk Technologies Llc, Addison, TX (US);
Venkatesh Chembrolu, Fremont, CA (US);
Zhigang Bai, Fremont, CA (US);
Yaguang Wei, Pleasanton, CA (US);
Anna Zheng, San Jose, CA (US);
Supradeep Narayana, Santa Clara, CA (US);
Suping Song, Fremont, CA (US);
Terence Lam, Cupertino, CA (US);
Michael Kuok San Ho, Emerald Hills, CA (US);
Changqing Shi, San Ramon, CA (US);
Lijie Guan, San Jose, CA (US);
Jian-Gang Zhu, San Jose, CA (US);
WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US);
Abstract
A magnetic head includes a main pole configured to serve as a first electrode, an upper pole containing a trailing magnetic shield configured to a serve as a second electrode, and a record element located in a trailing gap between the main pole and the trailing magnetic shield. The record element includes an electrically conductive, non-magnetic material portion which is not part of a spin torque oscillator stack. The main pole and the trailing magnetic shield are electrically shorted by the record element across the trailing gap between the main pole and the trailing magnetic shield such that an electrically conductive path is present between the main pole and the trailing magnetic shield through the record element.