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. 10, 2010
Filed:
Jan. 26, 2007
Koji Shimazawa, Chuo-ku, JP;
Katsumichi Tagami, Chuo-ku, JP;
Koji Shimazawa, Chuo-ku, JP;
Katsumichi Tagami, Chuo-ku, JP;
TDK Corporation, Tokyo, JP;
Abstract
A thin-film magnetic head for a heat-assisted magnetic recording which can perform a reliable writing immediately only on a desired track by applying a near-field light to a desired position and range is provided. The head comprises: an electromagnetic coil element for writing data signals, having a pole end reaching a head end surface; and a near-field-light-generating portion for heating a portion of a magnetic recording medium during write operation by generating a near-field light, having a generation end reaching the head end surface and provided adjacent to the pole end and in the leading side of the pole end, and a shape of the generation end on the head end surface being a trapezoid with a shorter edge on the trailing side, or being a triangle with an apex on the trailing side and with a bottom on the leading side.