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. 18, 2014
Filed:
Jun. 28, 2012
Masashi Sano, Tokyo, JP;
Hiromichi Umehara, Tokyo, JP;
Mutsumi Fujita, Tokyo, JP;
Isamu Toba, Tokyo, JP;
Tatsuhiro Nojima, Tokyo, JP;
Hitoshi Hatate, Tokyo, JP;
Hisayoshi Watanabe, Tokyo, JP;
Masashi Sano, Tokyo, JP;
Hiromichi Umehara, Tokyo, JP;
Mutsumi Fujita, Tokyo, JP;
Isamu Toba, Tokyo, JP;
Tatsuhiro Nojima, Tokyo, JP;
Hitoshi Hatate, Tokyo, JP;
Hisayoshi Watanabe, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A thin film magnetic recording head having a multilayer structure in which plural thin films are laminated and being a perpendicular recording type that applies a magnetic field perpendicularly to a magnetic recording medium and performs recording, includes a main magnetic pole exposed on an air bearing surface facing the magnetic recording medium and guiding a magnetic flux toward the magnetic recording medium, a thin film positioned beneath the main magnetic pole from a perspective of a lamination direction and configuring a sensor or a heater configured to determine a distance from the magnetic recording medium of the thin film magnetic recording head, and a light-absorbing portion positioned between the main magnetic pole and the thin film.