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:
Aug. 16, 2011
Filed:
Oct. 29, 2008
Koji Shimazawa, Tokyo, JP;
Eiji Komura, Tokyo, JP;
Yasuhiro Ito, Tokyo, JP;
Seiichi Takayama, Tokyo, JP;
Satoshi Tomikawa, Tokyo, JP;
Daisuke Miyauchi, Tokyo, JP;
Kosuke Tanaka, Tokyo, JP;
Koji Shimazawa, Tokyo, JP;
Eiji Komura, Tokyo, JP;
Yasuhiro Ito, Tokyo, JP;
Seiichi Takayama, Tokyo, JP;
Satoshi Tomikawa, Tokyo, JP;
Daisuke Miyauchi, Tokyo, JP;
Kosuke Tanaka, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
Provided is a surface plasmon antenna that can be set so that the emitting position on the end surface of the plasmon antenna where near-field light is emitted is located sufficiently close to the end of a magnetic pole. The surface plasmon antenna comprises an edge having a portion for coupling with a light in a surface plasmon mode. The edge is provided for propagating surface plasmon excited by the light and extends from the portion to a near-field light generating end surface that emits near-field light. The edge for propagating surface plasmon is a very narrow propagation region. Therefore, the near-field light generating end surface, which appears as a polished surface processed through polishing in the manufacturing of the plasmon antenna, can be made a shape with a very small size, and further can be set so that surface plasmon propagates to reach the end surface reliably.