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:
May. 21, 2013
Filed:
Apr. 30, 2012
Masayuki Takagishi, Tokyo, JP;
Hitoshi Iwasaki, Tokyo, JP;
Kenichiro Yamada, Tokyo, JP;
Katsuhiko Koui, Kanagawa-ken, JP;
Tomomi Funayama, Tokyo, JP;
Masahiro Takashita, Kanagawa-ken, JP;
Mariko Kitazaki, Kanagawa-ken, JP;
Soichi Oikawa, Tokyo, JP;
Masayuki Takagishi, Tokyo, JP;
Hitoshi Iwasaki, Tokyo, JP;
Kenichiro Yamada, Tokyo, JP;
Katsuhiko Koui, Kanagawa-ken, JP;
Tomomi Funayama, Tokyo, JP;
Masahiro Takashita, Kanagawa-ken, JP;
Mariko Kitazaki, Kanagawa-ken, JP;
Soichi Oikawa, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a magnetic recording device includes a magnetic recording head and a magnetic recording medium. The magnetic recording head includes a main magnetic pole, a shield and a stacked structure. The main magnetic pole has a medium facing surface and a main magnetic pole side surface. The shield has a shield side surface. The stacked structure is provided between the main magnetic pole and shield, and includes first and second magnetic layers, and an intermediate layer. The magnetic recording medium includes a backing layer and a magnetic recording layer. A distance between an end portion of the medium facing surface on a side of the stacked structure and the backing layer is twice or more of a distance between the main magnetic pole side surface and the shield side surface.