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:
Dec. 04, 2012
Filed:
Feb. 01, 2012
Kosuke Tanaka, Tokyo, JP;
Tetsuya Roppongi, Tokyo, JP;
Kei Hirata, Tokyo, JP;
Susumu Aoki, Tokyo, JP;
Takahiko Izawa, Tokyo, JP;
Makoto Isogai, Tokyo, JP;
Keita Kawamori, Tokyo, JP;
Takeshi Tsutsumi, Tokyo, JP;
Kosuke Tanaka, Tokyo, JP;
Tetsuya Roppongi, Tokyo, JP;
Kei Hirata, Tokyo, JP;
Susumu Aoki, Tokyo, JP;
Takahiko Izawa, Tokyo, JP;
Makoto Isogai, Tokyo, JP;
Keita Kawamori, Tokyo, JP;
Takeshi Tsutsumi, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A thermally-assisted magnetic recording head includes: a medium facing surface; a magnetic pole; a waveguide including a core and a cladding; a plasmon generator; and a protruding member. The protruding member is disposed between the medium facing surface and a front end face of the core facing toward the medium facing surface. The protruding member has a first end face located in the medium facing surface, and a second end face facing toward the front end face of the core and receiving light having propagated through the core and passed through the front end face. The protruding member is formed of a metal different from both a material forming the magnetic pole and a material forming the plasmon generator. The protruding member is heated and expanded by the light received at the second end face, so that the first end face gets protruded toward a magnetic recording medium.