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:
Apr. 01, 2014
Filed:
Apr. 05, 2012
Yoshitaka Sasaki, Milpitas, CA (US);
Hiroyuki Itoh, Milpitas, CA (US);
Shigeki Tanemura, Milpitas, CA (US);
Hironori Araki, Milpitas, CA (US);
Kazuo Ishizaki, Milpitas, CA (US);
Takehiro Horinaka, Milpitas, CA (US);
Yoshitaka Sasaki, Milpitas, CA (US);
Hiroyuki Itoh, Milpitas, CA (US);
Shigeki Tanemura, Milpitas, CA (US);
Hironori Araki, Milpitas, CA (US);
Kazuo Ishizaki, Milpitas, CA (US);
Takehiro Horinaka, Milpitas, CA (US);
Headway Technologies, Inc., Milpitas, CA (US);
Abstract
A magnetic head includes a pole layer accommodated in a groove. The pole layer has a track width defining portion and a wide portion. The pole layer includes a plurality of magnetic films stacked. At least one of the plurality of magnetic films includes a first portion included in the track width defining portion, a second portion included in the wide portion, and a third portion coupling the first and second portions to each other. In a cross section passing through the center of the pole layer taken in the track width direction, the second portion is smaller than the first portion in thickness and the top surface of the third portion is inclined with respect to a direction perpendicular to a medium facing surface.