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:
Jul. 22, 2014
Filed:
Dec. 06, 2013
Headway Technologies, Inc., Milpitas, CA (US);
Yan Wu, Cupertino, CA (US);
Zhigang Bai, Milpitas, CA (US);
Moris Dovek, San Jose, CA (US);
Cherng-Chyi Han, San Jose, CA (US);
Min Li, Fremont, CA (US);
Jianing Zhou, Fremont, CA (US);
Jiun-Ting Lee, Sunnyvale, CA (US);
Min Zheng, Milpitas, CA (US);
Headway Technologies, Inc., Milpitas, CA (US);
Abstract
A perpendicular magnetic recording (PMR) head is fabricated with a pole tip shielded laterally by a graded side shield that is conformal to the shape of the pole tip at an upper portion of the shield but not conformal to the pole tip at a lower portion. The shield includes a trailing shield, that is conformal to the trailing edge of the pole tip and may include a leading edge shield that magnetically connects two bottom ends of the graded side shield.