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. 09, 2011
Filed:
Apr. 06, 2007
Koichi Otani, Tokyo, JP;
Naoto Matono, Hong Kong, CN;
Tatsuya Harada, Tokyo, JP;
Kenji Yokoyama, Tokyo, JP;
Hidetaka Kawano, Tokyo, JP;
Koichi Otani, Tokyo, JP;
Naoto Matono, Hong Kong, CN;
Tatsuya Harada, Tokyo, JP;
Kenji Yokoyama, Tokyo, JP;
Hidetaka Kawano, Tokyo, JP;
TDK Corporation, Tokyo, JP;
SAE Magnetics (H.K.) Ltd., Hong Kong, CN;
Abstract
A magnetic head incorporates: a medium facing surface; a coil; a pole layer; first and second shields disposed to sandwich the pole layer therebetween; a first gap layer disposed between the first shield and the pole layer; a second gap layer disposed between the second shield and the pole layer; and a substrate. The first shield is located closer to the substrate than the second shield. The first shield has a first layer and a second layer disposed between the first layer and the first gap layer.