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. 05, 2017

Filed:

Aug. 23, 2016
Applicants:

Yoshitaka Sasaki, Los Gatos, CA (US);

Hiroyuki Ito, Milpitas, CA (US);

Yukinori Ikegawa, Milpitas, CA (US);

Shigeki Tanemura, Milpitas, CA (US);

Hideo Mamiya, Milpitas, CA (US);

Seiichiro Tomita, Milpitas, CA (US);

Inventors:

Yoshitaka Sasaki, Los Gatos, CA (US);

Hiroyuki Ito, Milpitas, CA (US);

Yukinori Ikegawa, Milpitas, CA (US);

Shigeki Tanemura, Milpitas, CA (US);

Hideo Mamiya, Milpitas, CA (US);

Seiichiro Tomita, Milpitas, CA (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/02 (2006.01); G11B 11/00 (2006.01); G11B 5/39 (2006.01); G02B 5/00 (2006.01); G02B 6/122 (2006.01); G11B 5/48 (2006.01); G11B 5/00 (2006.01);
U.S. Cl.
CPC ...
G11B 5/3929 (2013.01); G02B 5/008 (2013.01); G02B 6/1226 (2013.01); G11B 5/4866 (2013.01); G11B 2005/0021 (2013.01);
Abstract

A plasmon generator includes: a first portion formed of a first metal material and including a front end face configured to generate near-field light; a second portion formed of a second metal material and located at a distance from the front end face; and a heat sink layer formed of a third metal material, located at a distance from the front end face and interposed between the first portion and the second portion. The second metal material is lower in Vickers hardness and higher in thermal conductivity than the first metal material. The third metal material has a thermal conductivity higher than that of each of the first and second metal materials, and has a Vickers hardness lower than that of the first metal material and higher than that of the second metal material.


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