Invention Grant
- Patent Title: Magnetic head, head assembly and magnetic recording/reproducing apparatus and method for manufacturing magnetic head
- Patent Title (中): 磁头，头部组件和磁记录/再现装置和磁头制造方法
-
Application No.: US12388923Application Date: 2009-02-19
-
Publication No.: US08238057B2Publication Date: 2012-08-07
- Inventor: Yuji Ito , Seiji Yari
- Applicant: Yuji Ito , Seiji Yari
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: G11B5/31
- IPC: G11B5/31 ; G11B5/127 ; H01L43/12
Abstract:
The present invention relates to a magnetic head and particularly to improvement of its recording element. The recording element includes a first magnetic film, a second magnetic film, a coil film, and an insulating film. The first magnetic film has a first pole portion. The second magnetic film has a second pole portion opposed to the first pole portion with a magnetic gap film therebetween and is joined to the first magnetic film at a back gap portion that is located in a rearward position with respect to a medium facing surface. The coil film extends around the back gap portion, and the insulating film encloses the coil film. Moreover, the second magnetic film entirely covers the insulating film.
Public/Granted literature
Information query
IPC分类:
