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. 19, 2014
Filed:
Feb. 22, 2013
Applicants:
Tdk Corporation, Tokyo, JP;
Sae Magnetics (H.k.) Ltd., Hong Kong, CN;
Inventors:
Kei Hirata, Tokyo, JP;
Koji Shimazawa, Tokyo, JP;
Yasutoshi Fujita, Hong Kong, CN;
Ryuji Fujii, Hong Kong, CN;
Assignees:
TDK Corporation, Tokyo, JP;
SAE Magnetics (H.K.) Ltd., Hong Kong, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 11/00 (2006.01); G11B 13/04 (2006.01);
U.S. Cl.
CPC ...
G11B 13/04 (2013.01);
Abstract
A magnetic head includes a reading part, a recording part that is laminated on the reading part in a planer view, a recording part expansion heater, a reading part expansion heater, and a thermal expansion promoting layer that is prepared at a position closer to the reading part than to the recording part and extends to an air bearing surface.