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. 13, 2011
Filed:
Jun. 25, 2010
Daisuke Miyauchi, Tokyo, JP;
Tetsuya Roppongi, Tokyo, JP;
Kosuke Tanaka, Tokyo, JP;
Susumu Aoki, Tokyo, JP;
Katsuki Kurihara, Tokyo, JP;
Daisuke Miyauchi, Tokyo, JP;
Tetsuya Roppongi, Tokyo, JP;
Kosuke Tanaka, Tokyo, JP;
Susumu Aoki, Tokyo, JP;
Katsuki Kurihara, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
An outer surface of a plasmon generator includes: a plasmon exciting part that faces an evanescent light generating surface with a predetermined distance therebetween; and a front end face located in a medium facing surface. The plasmon generator has: first and second sidewall parts that are connected to the plasmon exciting part and increase in distance from each other with increasing distance from the plasmon exciting part; and at least one extended portion connected to an edge of at least one of the first and second sidewall parts opposite from the plasmon exciting part. A magnetic pole has a portion interposed between the first and second sidewall parts. The front end face includes first and second portions lying at ends of the first and second sidewall parts and connected to each other into a V-shape. An end face of the magnetic pole has a portion interposed between the first and second portions of the front end face.