Invention Grant
- Patent Title: Magnetic head having toroidal coil layer and manufacturing method thereof
- Patent Title (中): 具有环形线圈层的磁头及其制造方法
-
Application No.: US11296192Application Date: 2005-12-06
-
Publication No.: US07667927B2Publication Date: 2010-02-23
- Inventor: Kiyoshi Kobayashi , Toru Takahashi
- Applicant: Kiyoshi Kobayashi , Toru Takahashi
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Brinks Hofer Gilson & Lione
- Priority: JP2004-357591 20041210
- Main IPC: G11B5/17
- IPC: G11B5/17

Abstract:
First and second magnetic layers of a magnetic head face each other. A toroidal coil layer having upper and lower layer coil pieces (ULCP and LLCP) is wound around one of the magnetic layers. The ULCP extend from a first insulating layer by downward steps to a top of a second insulating layer which is widened at ends of the first insulating layer. Side ends of the first insulating layer extend parallel to a height direction. The ULCP are orthogonal to the side ends. Each of the LLCP is formed on a third insulating layer and has a straight region extending in the same direction as the upper layer coil pieces and a curved region curved toward a facing surface or in a height direction on one end in the track width direction. An end of each of the straight and curved region is connected to an ULCP.
Public/Granted literature
- US20060126221A1 Magnetic head having toroidal coil layer and manufacturing method thereof Public/Granted day:2006-06-15
Information query
IPC分类: