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.

Date of Patent:
May. 12, 2015

Filed:

Dec. 16, 2013
Applicants:

Yoshitaka Sasaki, Santa Clara, CA (US);

Hiroyuki Ito, Milpitas, CA (US);

Kazuki Sato, Milpitas, CA (US);

Shigeki Tanemura, Milpitas, CA (US);

Yukinori Ikegawa, Milpitas, CA (US);

Hironori Araki, Milpitas, CA (US);

Tatsuya Shimizu, Hong Kong, CN;

Inventors:

Yoshitaka Sasaki, Santa Clara, CA (US);

Hiroyuki Ito, Milpitas, CA (US);

Kazuki Sato, Milpitas, CA (US);

Shigeki Tanemura, Milpitas, CA (US);

Yukinori Ikegawa, Milpitas, CA (US);

Hironori Araki, Milpitas, CA (US);

Tatsuya Shimizu, Hong Kong, CN;

Assignees:

Headway Technologies, Inc., Milpitas, CA (US);

SAE Magnetics (H.K.) Ltd., Hong Kong, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01); G11B 5/11 (2006.01); G11B 5/17 (2006.01);
U.S. Cl.
CPC ...
G11B 5/11 (2013.01); G11B 5/17 (2013.01);
Abstract

A magnetic head includes a main pole, a write shield, and first and second nonmagnetic layers. The main pole has a top surface including an inclined surface portion. The inclined surface portion includes a first portion and a second portion, the first portion being closer to a medium facing surface. The write shield includes an inclined portion facing toward the top surface of the main pole. The first nonmagnetic layer is interposed between the inclined portion and the second portion of the inclined surface portion. The second nonmagnetic layer is interposed between the inclined portion and a combination of the first portion of the inclined surface portion and the first nonmagnetic layer.


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