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:
Aug. 01, 2017
Filed:
May. 26, 2016
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Kei Hirata, Tokyo, JP;
Shingo Miyata, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/31 (2006.01); G11B 5/127 (2006.01); G11B 5/11 (2006.01); G11B 5/48 (2006.01);
U.S. Cl.
CPC ...
G11B 5/3116 (2013.01); G11B 5/112 (2013.01); G11B 5/1278 (2013.01); G11B 5/315 (2013.01); G11B 5/3169 (2013.01); G11B 5/4826 (2013.01); G11B 5/4833 (2013.01);
Abstract
This perpendicular magnetic recording head includes: a magnetic pole; a pair of side shields disposed to face each other with the magnetic pole interposed therebetween in a cross track direction; a pair of side gaps each provided between the magnetic pole and the pair of side shields; a trailing gap provided to cover the magnetic pole and the pair of side gaps, and having a first width in the cross track direction; and a first magnetic layer covering the trailing gap and having a second width larger than the first width in the cross track direction.