Invention Grant
- Patent Title: Head gimbal assembly for microwave-assisted magnetic recording in impedance matching between microwave radiation element and microwave transmission line
- Patent Title (中): 微波辐射元件与微波传输线之间的阻抗匹配微波辅助磁记录头万向节组件
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Application No.: US13428710Application Date: 2012-03-23
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Publication No.: US08462465B1Publication Date: 2013-06-11
- Inventor: Takuya Adachi , Yoshikazu Soeno
- Applicant: Takuya Adachi , Yoshikazu Soeno
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Posz Law Group, PLC
- Main IPC: G11B5/48
- IPC: G11B5/48
Abstract:
A head gimbal assembly includes a magnetic head slider provided with a recording head element that applies a recording magnetic field to a magnetic recording medium and a suspension that supports the magnetic head slider. The magnetic head slider further includes a microwave radiation element that radiates a microwave magnetic field from a microwave excitation current that is supplied from a microwave generating circuit, and that applies the microwave magnetic field to the magnetic recording medium when the recording head element applies the recording magnetic field to the magnetic recording medium. The suspension includes a microwave transmission line that transmits the microwave excitation current, and the microwave transmission line is provided with a matching circuit to achieve impedance matching with the microwave radiation element.
Information query
IPC分类:
