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:
Sep. 12, 2017

Filed:

Sep. 30, 2016
Applicants:

Yoshitaka Sasaki, Los Gatos, CA (US);

Hiroyuki Ito, Milpitas, CA (US);

Hideo Mamiya, Milpitas, CA (US);

Shigeki Tanemura, Milpitas, CA (US);

Seiichiro Tomita, Milpitas, CA (US);

Hironori Araki, Milpitas, CA (US);

Inventors:

Yoshitaka Sasaki, Los Gatos, CA (US);

Hiroyuki Ito, Milpitas, CA (US);

Hideo Mamiya, Milpitas, CA (US);

Shigeki Tanemura, Milpitas, CA (US);

Seiichiro Tomita, Milpitas, CA (US);

Hironori Araki, Milpitas, CA (US);

Assignee:

HEADWAY TECHNOLOGIES, INC., Milpitas, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/31 (2006.01); G11B 5/48 (2006.01); G11B 5/00 (2006.01);
U.S. Cl.
CPC ...
G11B 5/314 (2013.01); G11B 5/3169 (2013.01); G11B 5/4866 (2013.01); G11B 2005/0021 (2013.01);
Abstract

A main pole has a front end face including a first to a third end face portion. A plasmon generator has a near-field-light-generating surface. A surrounding layer has a first surrounding layer end face and a second surrounding layer end face. A gap film has a first gap film end face and a second gap film end face located on opposite sides of the near-field-light-generating surface in the track width direction. The first and second end face portions are interposed between the first and second surrounding layer end faces. The second end face portion is greater in width than the first end face portion. The third end face portion is greater in width than the second end face portion.


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