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:
Jul. 10, 2012
Mariko Shimizu, Yokohama, JP;
Hitoshi Iwasaki, Yokosuka, JP;
Kenichiro Yamada, Tokyo, JP;
Junichi Akiyama, Kawasaki, JP;
Masayuki Takagishi, Kunitachi, JP;
Tomomi Funayama, Tokorozawa, JP;
Masahiro Takashita, Yokohama, JP;
Mariko Shimizu, Yokohama, JP;
Hitoshi Iwasaki, Yokosuka, JP;
Kenichiro Yamada, Tokyo, JP;
Junichi Akiyama, Kawasaki, JP;
Masayuki Takagishi, Kunitachi, JP;
Tomomi Funayama, Tokorozawa, JP;
Masahiro Takashita, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An example magnetic head includes a recording pole to generate a recording magnetic field, a spin torque oscillator formed in the vicinity of the recording magnetic pole and a hard bias film provided at both end portions of a bias layer and an oscillation layer of spin torque oscillator. The hard bias film is configured to apply a magnetic field to the bias layer and the oscillation layer.