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. 14, 2012
Filed:
Sep. 04, 2008
Eiji Komura, Tokyo, JP;
Koji Shimazawa, Tokyo, JP;
Kosuke Tanaka, Tokyo, JP;
Seiichi Takayama, Tokyo, JP;
Hitoshi Hatate, Tokyo, JP;
Eiji Komura, Tokyo, JP;
Koji Shimazawa, Tokyo, JP;
Kosuke Tanaka, Tokyo, JP;
Seiichi Takayama, Tokyo, JP;
Hitoshi Hatate, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
When first and second near-field light-generating portions are irradiated with laser light or other energy rays, near-field light is generated at the tips of both the near-field light-generating portions. By means of the near-field light thus generated, a magnetic recording medium opposing the medium-opposing surface is heated, and the coercivity of the magnetic recording medium is lowered. Since at least a portion of the main magnetic pole is positioned within the spot region including the region between the first and second near-field light-generating portions, the tips of both the near-field light-generating portions and the main magnetic pole can be brought extremely close together, and high-density recording can be performed.