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. 11, 2017
Filed:
Nov. 12, 2014
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Hideyuki Ukita, Tokyo, JP;
Kenkichi Anagawa, Tokyo, JP;
Kei Hirata, Tokyo, JP;
Atsushi Yamaguchi, Tokyo, JP;
Ittetsu Kitajima, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/127 (2006.01); G11B 5/31 (2006.01);
U.S. Cl.
CPC ...
G11B 5/1278 (2013.01); G11B 5/1276 (2013.01); G11B 5/315 (2013.01); G11B 5/3116 (2013.01); G11B 5/3143 (2013.01);
Abstract
The perpendicular magnetic recording head includes a magnetic pole including a first region and a second region, the first region having a first specific resistance and an end surface exposed on an air bearing surface, the second region having a second specific resistance higher than the first specific resistance and being located at a position recessed from the air bearing surface.