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:
Oct. 08, 2013
Filed:
Aug. 10, 2010
Kenichiro Yamada, Tokyo, JP;
Katsuhiko Koui, Tokyo, JP;
Mariko Kitazaki, Kanagawa-ken, JP;
Masayuki Takagishi, Tokyo, JP;
Tomomi Funayama, Tokyo, JP;
Masahiro Takashita, Kanagawa-ken, JP;
Soichi Oikawa, Tokyo, JP;
Akihiko Takeo, Tokyo, JP;
Kenichiro Yamada, Tokyo, JP;
Katsuhiko Koui, Tokyo, JP;
Mariko Kitazaki, Kanagawa-ken, JP;
Masayuki Takagishi, Tokyo, JP;
Tomomi Funayama, Tokyo, JP;
Masahiro Takashita, Kanagawa-ken, JP;
Soichi Oikawa, Tokyo, JP;
Akihiko Takeo, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A magnetic recording head includes a magnetic pole, a spin torque oscillator, a first shield and a second shield. The magnetic pole has an air-bearing surface. The spin torque oscillator is provided so that a first side of the spin torque oscillator faces the magnetic pole in a first direction parallel to the air-bearing surface. The first shield includes a granular magnetic material, and is provided so that two portions of the first shield sandwich the spin torque oscillator in a second direction which is parallel to the air-bearing surface and perpendicular to the first direction. The second shield is provided on a second side of the spin torque oscillator opposite to the first side.