Invention Grant
- Patent Title: Magnetic head with protective layer and a protective film removal method for the magnetic head
- Patent Title (中): 具有保护层的磁头和用于磁头的保护膜去除方法
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Application No.: US12794148Application Date: 2010-06-04
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Publication No.: US08213117B2Publication Date: 2012-07-03
- Inventor: Yosuke Antoku , Norio Takahashi , Katsuki Kurihara
- Applicant: Yosuke Antoku , Norio Takahashi , Katsuki Kurihara
- 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: G11B5/127
- IPC: G11B5/127

Abstract:
A magnetic head includes a reproducing element for reproducing information recorded on a magnetic recording medium, a recording element for recording information on the magnetic recording medium, and a heating resistor. The magnetic head has a magnetic medium-facing surface on which the reproducing element and the recording element are exposed.The magnetic head is obtained as follows: (1) a protective film is formed to cover the magnetic medium-facing surface; (2) within a case of a magnetic recording/reproducing apparatus including the magnetic recording medium, the magnetic medium-facing surface is opposed to a surface of the magnetic recording medium; (3) the heating resistor is allowed to generate heat by power supply while rotating the magnetic recording medium, wherein thermal expansion due to the heat generation causes bulging of the magnetic medium-facing surface, bringing the protective film into contact with the magnetic recording medium; and (4) a portion of the protective film covering at least one of the reproducing element and the recording element is removed by scraping.
Public/Granted literature
- US20110299187A1 MAGNETIC HEAD WITH PROTECTIVE LAYER AND A PROTECTIVE FILM REMOVAL METHOD FOR THE MAGNETIC HEAD Public/Granted day:2011-12-08
Information query
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