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:
Feb. 18, 2014
Filed:
Mar. 21, 2012
Eiji Komura, Tokyo, JP;
Tsutomu Chou, Tokyo, JP;
Koji Shimazawa, Tokyo, JP;
Shinji Hara, Tokyo, JP;
Ryo Hosoi, Tokyo, JP;
Nobuyuki Mori, Tokyo, JP;
Yasutoshi Fujita, Hong Kong, CN;
Hideki Tanzawa, Hong Kong, CN;
Eiji Komura, Tokyo, JP;
Tsutomu Chou, Tokyo, JP;
Koji Shimazawa, Tokyo, JP;
Shinji Hara, Tokyo, JP;
Ryo Hosoi, Tokyo, JP;
Nobuyuki Mori, Tokyo, JP;
Yasutoshi Fujita, Hong Kong, CN;
Hideki Tanzawa, Hong Kong, CN;
TDK Corporation, Tokyo, JP;
Sae Magnetics (H.K.) Ltd., Hong Kong, CN;
Abstract
The thermally-assisted magnetic recording head includes: a laser light source having an emission surface, the emission surface allowing laser light to be emitted therefrom; a waveguide having a core and a cladding, the core allowing the laser light emitted from the laser light source to propagate therethrough, and the cladding surrounding the core; a magnetic pole; and a plasmon generator. Each of the core and the cladding has an end surface facing the emission surface, and the end surface of the cladding suppresses returning of the laser light to the laser light source.