Invention Grant
US07768737B2 Servo information writing method, magnetic head tester and magnetic disk tester using the servo information writing method
有权
伺服信息写入方式，磁头测试仪和磁盘测试仪采用伺服信息写入方式
- Patent Title: Servo information writing method, magnetic head tester and magnetic disk tester using the servo information writing method
- Patent Title (中): 伺服信息写入方式，磁头测试仪和磁盘测试仪采用伺服信息写入方式
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Application No.: US12204283Application Date: 2008-09-04
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Publication No.: US07768737B2Publication Date: 2010-08-03
- Inventor: Yoshihiro Sakurai , Hitoshi Otani , Kunihito Higa , Yukio Yamamoto
- Applicant: Yoshihiro Sakurai , Hitoshi Otani , Kunihito Higa , Yukio Yamamoto
- Applicant Address: JP Tokyo
- Assignee: Hitachi High-Technologies Corporation
- Current Assignee: Hitachi High-Technologies Corporation
- Current Assignee Address: JP Tokyo
- Agency: Mattingly & Malur, P.C.
- Priority: JP2007-231193 20070906
- Main IPC: G11B21/02
- IPC: G11B21/02 ; G11B5/596 ; G11B27/36
Abstract:
A mark information is recorded in an area which is on a circumference of a magnetic disk corresponding to a last track in which a servo information write is ended or a track, which is one or two in front of the last track in which servo information is not written and the mark information is detected by returning a magnetic head in a radial direction of the magnetic disk by a fine movement stage after the magnetic head is moved to a next aimed track by a coarse movement stage. The servo information write position is detected by the magnetic head and the servo information is written in a servo information write position of a next track by positioning the magnetic head therein by using the fine movement stage.
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