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:
Oct. 02, 2012
Filed:
Mar. 16, 2009
Kaizhong Gao, Eden Prairie, MN (US);
Jianhua Xue, Maple Grove, MN (US);
Yuming Zhou, Lakeville, MN (US);
Dehua Han, Lakeville, MN (US);
Eric S. Linville, Shakopee, MN (US);
Kaizhong Gao, Eden Prairie, MN (US);
Jianhua Xue, Maple Grove, MN (US);
Yuming Zhou, Lakeville, MN (US);
Dehua Han, Lakeville, MN (US);
Eric S. Linville, Shakopee, MN (US);
Seagate Technology LLC, Cupertino, CA (US);
Abstract
A pole tip shield for a write element of a recording head is disclosed. The pole tip shield is spaced from the pole tip in the leading edge direction to provide a magnetic wall angle to reduce ATI or adjacent track erasure to compensate for the skew angle of the head. In illustrated embodiments, the pole tip shield includes side portions. In illustrated embodiments the pole tip shield is generally 'U' shaped and side portions of the pole tip shield include different thickness or width dimensions. In illustrated embodiments, the pole tip shield provides a magnetic wall angle for a rectangular shaped pole tip. Embodiments disclosed in the application include a trailing edge shield separated from the pole tip shield along an air bearing surface of the head by a non-magnetic gap portion.