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:
Jan. 03, 2012
Filed:
May. 13, 2009
Makoto Isogai, Tokyo, JP;
Susumu Aoki, Tokyo, JP;
Daisuke Miyauchi, Tokyo, JP;
Eiji Komura, Tokyo, JP;
Seiichi Takayama, Tokyo, JP;
Makoto Isogai, Tokyo, JP;
Susumu Aoki, Tokyo, JP;
Daisuke Miyauchi, Tokyo, JP;
Eiji Komura, Tokyo, JP;
Seiichi Takayama, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A near-field light generating device includes: a waveguide having a groove that opens in the top surface; a clad layer disposed on the top surface of the waveguide and having an opening that is contiguous to the groove; a near-field light generating element accommodated in the opening; and a buffer layer interposed between the near-field light generating element and each of the waveguide and the clad layer in the groove and the opening. The near-field light generating element includes: first and second side surfaces that decrease in distance from each other toward the groove; an edge part that connects the first and second side surfaces to each other and is opposed to the groove with the buffer layer therebetween; and a near-field light generating part that lies at one end of the edge part and generates near-field light.